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NFI summary report

National Forest Inventory statistics for Devon Cornwall and the Isles of Scilly Issued by: National Forest Inventory

Forest Research, 231 Corstorphine Road, Edinburgh, EH12 7AT

Date: March 2017

NFI enquiries: Ben Ditchburn; Tel: 0300 067 5064

[email protected]

NFI Statistician: Alan Brewer

[email protected]

Website: www.forestry.gov.uk/inventory

www.forestry.gov.uk/forecast

mailto:[email protected]

mailto:[email protected]

http://www.forestry.gov.uk/inventory

http://www.forestry.gov.uk/forecast

NFI summary report

2 National Forest Inventory statistics for Devon Cornwall and the Isles of Scilly

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Devon Cornwall and the Isles of Scilly Map 1 Map of England and the aligned areas

The map shows shortened names for some of the aligned areas. The short names and their full equivalents are to be found in Appendix A.

NFI summary report


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Key findings for Devon Cornwall and the Isles of Scilly Devon, Cornwall and the Isles of Scilly (DCS) have a land area of 1,026,900 hectares making it 5th out of the 14 aligned areas by land area. With 111,777 ha of woodland, DCS ranks 5th out of 14 in terms of woodland area (11% woodland cover). Some 10% of the woodland is under Forestry Commission ownership or management. Sitka spruce is the most commonly occurring of the conifer species whether assessed by stocked area (39%), standing volume (37%) or number of trees (47%). Oak is the most commonly occurring of the broadleaved species when assessed by stocked area (19%) and standing volume (38%). Hazel is the most commonly occurring of the broadleaved species when assessed by number of trees (17%). Some 28% of standing coniferous volume is beyond the age of maximum mean annual increment (or above terminal height of 25m in higher windthrow risk areas). The harvesting assumptions applied in the forecast assume that a proportion of this volume will be felled over a period of time from the start of the forecast. Some 48% of conifer and mixed broadleaf/conifer sections (PS only) show evidence of thinning. Overall 54% of standing broadleaved volume is beyond the age of maximum mean annual increment (or above terminal height of 25m in higher windthrow risk areas). Some 4% of broadleaved sections (PS only) show evidence of thinning. Across DCS:

• Ash is estimated as 10% of total stocked area (13% of broadleaved stocked area), 10% of standing volume (15% of broadleaved standing volume) and 10% of the number of trees (12% of the number of broadleaved trees).

• Oak is estimated as 15% of total stocked area (19% of broadleaved stocked area), 26% of standing volume (38% of broadleaved standing volume) and 7% of the number of trees (9% of the number of broadleaved trees).

• Sweet chestnut is estimated as 2% of total stocked area (3% of broadleaved stocked area), 4% of standing volume (6% of broadleaved standing volume) and 2% of the number of trees (2% of the number of broadleaved trees).

• Larch is estimated as 3% of total stocked area (13% of conifer stocked area), 4% of standing volume (13% of conifer standing volume) and 2% of the number of trees (11% of the number of conifer trees).

NFI summary report


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Contents Devon Cornwall and the Isles of Scilly ..................................................... 2

Key findings for Devon Cornwall and the Isles of Scilly ........................... 3

Part 1 – introduction and methodology ................................................. 12

Introduction .......................................................................................... 13

How the estimates are prepared ........................................................... 14

Note on the estimates ..................................................................................... 14

Part 2 – What our woodlands are like today .......................................... 15

Woodland area statistics ....................................................................... 17

Woodland area by woodland type ..................................................................... 17 Woodland area by ownership ........................................................................... 18 Woodland area by interpreted forest type .......................................................... 19 Woodland area by interpreted forest type and woodland size ............................... 20 Woodland area by interpreted forest type and ownership .................................... 21 Woodland area by interpreted forest type, woodland size and ownership ............... 22 Woodland area by size class distribution ............................................................ 23 Open areas in woodland by land use type .......................................................... 24

Net area under canopy .......................................................................... 25

Stocked area by species .................................................................................. 25 Stocked area by age class ............................................................................... 28 Stocked area by mean stand dbh class .............................................................. 30 Clearfelled area .............................................................................................. 32 Comparison of mapped area estimates and stocked area estimates ...................... 32

Standing volume ................................................................................... 33

Standing volume by species ............................................................................. 33 Standing volume by age class .......................................................................... 36 Standing volume by mean stand dbh class ........................................................ 38

Number of measureable trees ............................................................... 40

Number of measureable trees by species ........................................................... 40 Number of measureable trees by age class ........................................................ 42 Number of measureable trees by mean stand dbh class ...................................... 44

Biomass stocks in live woodland trees .................................................. 46

Biomass stocks by species ............................................................................... 46

Carbon stocks in live woodland trees .................................................... 48

Carbon stocks by species ................................................................................. 48

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Existing woodland management information and economic viability data (PS only) ............................................................................................... 50

Sample square distribution .............................................................................. 50 Evidence of management ................................................................................ 51 Evidence of thinning ....................................................................................... 53 Suitability for harvesting ................................................................................. 54 Distance to road ............................................................................................. 55 Type of road or ride ........................................................................................ 56 Mean yield class ............................................................................................. 57

Overdue timber stocks .......................................................................... 59

Overdue volume and area ............................................................................... 59

Part 3 – How our woodlands might change over time ........................... 60

25-year softwood forecast .................................................................... 61

25-year forecast of softwood timber availability ................................................. 61 25-year forecast of softwood timber availability by principal species ..................... 63 25-year forecast of softwood timber availability % spruce ................................... 64 25-year forecast of softwood timber availability by top diameter class .................. 65 25-year forecast of standing volume in conifers.................................................. 67 25-year forecast of net increment in conifers ..................................................... 68 Combined standing volume, net increment and availability .................................. 69


50-year forecast of softwood timber availability ................................................. 70 50-year forecast of softwood timber availability by principal species ..................... 72 50-year forecast of softwood timber availability % spruce ................................... 75 50-year forecast of standing volume in conifers.................................................. 76 50-year forecast of net increment in conifers ..................................................... 77 Combined standing volume, net increment and availability .................................. 78

50-year hardwood forecast ................................................................... 79

50-year forecast of hardwood timber availability ................................................ 79 50-year forecast of hardwood timber availability by principal species .................... 81 50-year forecast of hardwood timber availability by top diameter class ................. 84 50-year forecast of standing volume in broadleaves ............................................ 87 50-year forecast of net increment in broadleaves ............................................... 91 Combined standing volume, net increment and availability .................................. 95

Part 4 – Tree health............................................................................... 96

Ash ........................................................................................................ 97

Oak ...................................................................................................... 106

Sweet chestnut ................................................................................... 115

Larch ................................................................................................... 124

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Appendix A – Aligned area nomenclature ............................................ 133

Glossary .............................................................................................. 134

Aligned area reports in this series ....................................................... 138

NFI national reports and papers .......................................................... 139

Maps Map 1 Map of England and the aligned areas ............................................................ 2

Figures


Figure 1 Woodland area by woodland type ............................................................ 17 Figure 2 Woodland area by ownership .................................................................. 18 Figure 3 Woodland area by interpreted forest type ................................................. 19 Figure 4 Woodland area by interpreted forest type and woodland size ...................... 20 Figure 5 Woodland area by interpreted forest type and ownership ............................ 21 Figure 6 Woodland area by size class distribution ................................................... 23 Figure 7 Open areas in woodland by land use type ................................................. 24 Figure 8 Stocked area by principal tree species ...................................................... 25 Figure 9 Stocked area by principal conifer species .................................................. 27 Figure 10 Stocked area by principal broadleaved species ........................................ 27 Figure 11 Stocked area by age class ..................................................................... 28 Figure 12 Stocked area by mean stand dbh class ................................................... 30 Figure 13 Simplified comparison of mapped area and stocked area ......................... 32 Figure 14 Standing volume by principal tree species ............................................... 33 Figure 15 Standing volume by principal conifer species ........................................... 35 Figure 16 Standing volume by principal broadleaved species ................................... 35 Figure 17 Standing volume by age class ............................................................... 36 Figure 18 Standing volume by stand mean dbh class .............................................. 38 Figure 19 Number of measureable trees by principal tree species ............................. 40 Figure 20 Number of measureable trees by age class ............................................. 42 Figure 21 Number of measureable trees by mean stand dbh class ............................ 44 Figure 22 Biomass stocks by principal tree species ................................................. 46 Figure 23 Carbon stocks by principal tree species .................................................. 48 Figure 24 Evidence of management in PS broadleaf sections ................................... 51 Figure 25 Evidence of management in PS conifer sections ....................................... 51

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Figure 26 Evidence of management in PS mixed broadleaf/conifer sections ............... 52 Figure 27 Evidence of management in PS sections with no broadleaf or conifer .......... 52 Figure 28 Evidence of thinning ............................................................................. 53 Figure 29 Suitability for harvesting ....................................................................... 54 Figure 30 Distance to road .................................................................................. 55 Figure 31 Road or ride in survey square ................................................................ 56 Figure 32 Type of road or ride in survey square ..................................................... 56 Figure 33 Mean yield class by principal tree species (FC and PS) .............................. 57


Figure 34 Summary of 25–year forecast of softwood timber availability; average annual volume within period ........................................................................................... 61 Figure 35 25–year forecast of softwood timber availability; average annual volume within period ....................................................................................................... 62 Figure 36 25-year forecast of standing volume in conifers ....................................... 67 Figure 37 25-year forecast of net increment in conifers .......................................... 68 Figure 38 25-year forecast of standing volume, net increment and softwood availability ......................................................................................................................... 69 Figure 39 Summary of 50-year forecast of softwood timber availability; average annual volume within period ........................................................................................... 70 Figure 40 50–year forecast of softwood timber availability; average annual volume within period ....................................................................................................... 71 Figure 41 50–year forecast of standing volume in conifers; average annual volume within period ....................................................................................................... 76 Figure 42 50-year forecast of net increment in conifers; average annual volume within period ................................................................................................................ 77 Figure 43 50-year forecast of standing volume, net increment and softwood availability ......................................................................................................................... 78 Figure 44 Summary of 50-year forecast of hardwood timber availability; average annual volume within period ........................................................................................... 79 Figure 45 50–year forecast of hardwood timber availability; average annual volume within period ....................................................................................................... 80 Figure 46 50–year forecast of standing volume in broadleaves; average annual volume within period ....................................................................................................... 87 Figure 47 50-year forecast of net increment in broadleaves; average annual volume within period ....................................................................................................... 91 Figure 48 combined hardwood standing volume, net increment and availability ......... 95

Part 4 – Tree health............................................................................... 96

Figure 49 Stocked area of ash by age class ........................................................... 97 Figure 50 Stocked area of ash by mean stand dbh class ......................................... 98 Figure 51 Standing volume of ash by age class ...................................................... 99 Figure 52 Standing volume of ash by mean stand dbh class .................................. 100 Figure 53 Number of ash trees by age class ........................................................ 101

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Figure 54 Number of ash trees by mean stand dbh class ....................................... 102 Figure 55 Ash as a proportion of woodland .......................................................... 103 Figure 56 Stocked area of oak by age class ......................................................... 106 Figure 57 Stocked area of oak by mean stand dbh class ....................................... 107 Figure 58 Standing volume of oak by age class .................................................... 108 Figure 59 Standing volume of oak by mean stand dbh class .................................. 109 Figure 60 Number of oak trees by age class ........................................................ 110 Figure 61 Number of oak trees by mean stand dbh class ....................................... 111 Figure 62 Oak as a proportion of woodland ......................................................... 112 Figure 63 Stocked area of sweet chestnut by age class ......................................... 115 Figure 64 Stocked area of sweet chestnut by mean stand dbh class ....................... 116 Figure 65 Standing volume of sweet chestnut by age class .................................... 117 Figure 66 Standing volume of sweet chestnut by mean stand dbh class .................. 118 Figure 67 Number of sweet chestnut trees by age class ........................................ 119 Figure 68 Number of sweet chestnut trees by mean stand dbh class ...................... 120 Figure 69 Sweet chestnut as a proportion of woodland ......................................... 121 Figure 70 Stocked area of larch by age class ....................................................... 124 Figure 71 Stocked area of larch by mean stand dbh class ..................................... 125 Figure 72 Standing volume of larch by age class .................................................. 126 Figure 73 Standing volume of larch by mean stand dbh class ................................ 127 Figure 74 Number of larch trees by age class ...................................................... 128 Figure 75 Number of larch trees by mean stand dbh class ..................................... 129 Figure 76 Larch as a proportion of woodland ....................................................... 130

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Tables


Table 1 Woodland area by woodland type .............................................................. 17 Table 2 Woodland area by ownership .................................................................... 18 Table 3 Woodland area by interpreted forest type .................................................. 19 Table 4 Woodland area by interpreted woodland type and woodland size................... 20 Table 5 Woodland area by interpreted forest type and ownership ............................. 21 Table 6 Woodland area by interpreted forest type, woodland size and ownership........ 22 Table 7 Woodland area by size class distribution .................................................... 23 Table 8 Open areas in woodland by land use type .................................................. 24 Table 9 Stocked area by principal tree species ....................................................... 26 Table 10 Stocked area by age class ...................................................................... 29 Table 11 Stocked area by mean stand dbh class .................................................... 31 Table 12 Clearfelled area .................................................................................... 32 Table 13 Simplified comparison of mapped area and stocked area ............................ 32 Table 14 Standing volume by principal tree species ................................................ 34 Table 15 Standing volume by age class ................................................................. 37 Table 16 Standing volume by mean stand dbh class ............................................... 39 Table 17 Number of measureable trees by principal tree species .............................. 41 Table 18 Number of measureable trees by age class ............................................... 43 Table 19 Number of measureable trees by mean stand dbh class ............................. 45 Table 20 Biomass stocks by principal tree species .................................................. 47 Table 21 Carbon stocks by principal tree species .................................................... 49 Table 22 Sample square distribution ..................................................................... 50 Table 23 Mean yield class by principal tree species (FC and PS) ............................... 58 Table 24 Standing volume in overdue timber stocks ............................................... 59 Table 25 Stocked area of overdue timber stocks .................................................... 59


Table 26 25–year forecast of softwood availability; average annual volume within period ......................................................................................................................... 62 Table 27 25-year forecast of softwood timber availability by principal species; average annual volume within period ................................................................................. 63 Table 28 25-year forecast of softwood timber availability % spruce .......................... 64 Table 29 25-year forecast of softwood timber availability by top diameter class; average annual volume within period ................................................................................. 65 Table 30 25-year forecast of standing volume in conifers; average annual volume within period ................................................................................................................ 67 Table 31 25-year forecast of net increment in conifers; average annual volume within period ................................................................................................................ 68

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Table 32 Summary of 50–year forecast of softwood timber availability; average annual volume within period ........................................................................................... 71 Table 33 50-year forecast of softwood timber availability by principal species; average annual volume within period ................................................................................. 72 Table 34 50–year forecast of softwood timber availability % spruce ......................... 75 Table 35 50–year forecast of standing volume in conifers; average annual volume within period ....................................................................................................... 76 Table 36 50-year forecast of net increment in conifers; average annual volume within period ................................................................................................................ 77 Table 37 50–year forecast of hardwood timber availability; average annual volume within period ....................................................................................................... 80 Table 38 50-year forecast of hardwood timber availability by principal species; average annual volume within period ................................................................................. 81 Table 39 50-year forecast of hardwood timber availability by top diameter class; average annual volume within period ..................................................................... 84 Table 40 50–year forecast of standing volume in broadleaves; average annual volume within period ....................................................................................................... 87 Table 41 50-year forecast of standing volume in broadleaves by principal species; average annual volume within period ..................................................................... 88 Table 42 50–year forecast of net increment in broadleaves; average annual volume within period ....................................................................................................... 91 Table 43 50–year forecast of net increment in broadleaves by principal species; average annual volume within period ................................................................................. 92

Part 4 – Tree health............................................................................... 96

Table 44 Stocked area of ash by age class ............................................................ 97 Table 45 Stocked area of ash by mean stand dbh class ........................................... 98 Table 46 Standing volume of ash by age class ....................................................... 99 Table 47 Standing volume of ash by mean stand dbh class .................................... 100 Table 48 Number of ash trees by age class .......................................................... 101 Table 49 Number of ash trees by mean stand dbh class ........................................ 102 Table 50 Stocked area of ash as a proportion of woodland .................................... 104 Table 51 Standing volume of ash as a proportion of woodland ............................... 104 Table 52 Number of ash trees as a proportion of woodland .................................... 105 Table 53 Stocked area of oak by age class .......................................................... 106 Table 54 Stocked area of oak by mean stand dbh class ......................................... 107 Table 55 Standing volume of oak by age class ..................................................... 108 Table 56 Standing volume of oak by mean stand dbh class ................................... 109 Table 57 Number of oak trees by age class.......................................................... 110 Table 58 Number of oak trees by mean stand dbh class ........................................ 111 Table 59 Stocked area of oak as a proportion of woodland .................................... 113 Table 60 Standing volume of oak as a proportion of woodland ............................... 113 Table 61 Number of oak trees as a proportion of woodland.................................... 114

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Table 62 Stocked area of sweet chestnut by age class .......................................... 115 Table 63 Stocked area of sweet chestnut by mean stand dbh class ......................... 116 Table 64 Standing volume of sweet chestnut by age class ..................................... 117 Table 65 Standing volume of sweet chestnut by mean stand dbh class ................... 118 Table 66 Number of sweet chestnut trees by age class ......................................... 119 Table 67 Number of sweet chestnut trees by mean stand dbh class ........................ 120 Table 68 Stocked area of sweet chestnut as a proportion of woodland .................... 122 Table 69 Standing volume of sweet chestnut as a proportion of woodland ............... 122 Table 70 Number of sweet chestnut trees as a proportion of woodland ................... 123 Table 71 Stocked area of larch by age class......................................................... 124 Table 72 Stocked area of larch by mean stand dbh class ....................................... 125 Table 73 Standing volume of larch by age class ................................................... 126 Table 74 Standing volume of larch by mean stand dbh class .................................. 127 Table 75 Number of larch trees by age class ........................................................ 128 Table 76 Number of larch trees by mean stand dbh class ...................................... 129 Table 77 Stocked area of larch as a proportion of woodland................................... 131 Table 78 Standing volume of larch as a proportion of woodland ............................. 131 Table 79 Number of larch trees as a proportion of woodland .................................. 132

Appendix A – Aligned area nomenclature ............................................ 133

Table 80 Aligned area long and short names ........................................................ 133

NFI summary report – Part 1


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Part 1 – introduction and methodology Introduction .......................................................................................... 13

How the estimates are prepared ........................................................... 14

Note on the estimates ..................................................................................... 14

Part 1 – introduction and methodology


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Introduction National forest inventories are carried out by the Forestry Commission to provide accurate, up-to-date information about the size, distribution, composition and condition of the forests and woodlands in Great Britain (GB). This information is essential for developing and monitoring policies and guidance to support sustainable forest management. The current National Forest Inventory (NFI), which began in 2010, is a multipurpose operation that has involved the production of a forest and woodland map for Britain and a continuing programme of field surveys (the first cycle of field surveys completed in late 2015) of the mapped forest and woodland areas. Information and data collected by the National Forest Inventory is being used for a number of purposes, including estimates and 25-year forecasts of forest metrics such as:

• standing volume • timber availability • tree growth and increment • carbon stocks • biomass

Estimates of aspects of the biodiversity and social value of forests and woodlands will also be provided by the NFI. This report brings together key woodland information for England previously published across the range of NFI thematic reports. Within the NFI programme, results are presented by the NUTS 1 boundaries*. This report heads a series of reports where the woodland statistics are broken down by aligned area. The data sources and methodology covering the suite of reports is to found in the report for England and the aligned areas.

* See http://ec.europa.eu/eurostat/web/nuts/overview for a description of the Nomenclature of territorial units for statistics (NUTS) classification system.

http://ec.europa.eu/eurostat/web/nuts/overview

Part 1 – introduction and methodology


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How the estimates are prepared The methodology, data sources and assumptions are described in the England report. It is important that the estimates presented in this report are interpreted in the light of the information provided in the England report. The methodology introduces the sub-compartment database and the National Forest Inventory. It describes the metrics presented in this report and how they are derived. The methodology covers how the FC and private sector (PS) forecasts are prepared and includes commentary on the assumptions made in order to calculate the forecast estimates. Finally the methodology covers the tree health metrics.

Note on the estimates The values in the tables have been independently rounded, so may not add to the totals shown. In some breakdowns of Private sector estimates, the estimates in the body of the table may not sum to the quoted total because each individual value, including the total, has been independently generated by the estimation procedure used for results from the NFI sample survey. Sampling standard errors attached to Private sector estimates are expressed in relative terms (%) to the right of the relevant estimate and as ± error bars in the figures. Percentages in the pie charts may also not sum to 100 due to rounding. Due to biological and sampling constraints, for example where there is a very small population of a species within a particular region, the estimates may have a high associated standard error. Since this indicates a high level of uncertainty around those estimates then caution should be used when drawing any conclusions from these values as the estimate may not be representative of the real population. Such estimates have been ‘lowlighted’ in the tables.



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Part 2 – What our woodlands are like today Woodland area statistics ....................................................................... 17

Woodland area by woodland type ..................................................................... 17 Woodland area by ownership ........................................................................... 18 Woodland area by interpreted forest type .......................................................... 19 Woodland area by interpreted forest type and woodland size ............................... 20 Woodland area by interpreted forest type and ownership .................................... 21 Woodland area by interpreted forest type, woodland size and ownership ............... 22 Woodland area by size class distribution ............................................................ 23 Open areas in woodland by land use type .......................................................... 24

Net area under canopy .......................................................................... 25

Stocked area by species .................................................................................. 25 Stocked area by age class ............................................................................... 28 Stocked area by mean stand dbh class .............................................................. 30 Clearfelled area .............................................................................................. 32 Comparison of mapped area estimates and stocked area estimates ...................... 32

Standing volume ................................................................................... 33

Standing volume by species ............................................................................. 33 Standing volume by age class .......................................................................... 36 Standing volume by mean stand dbh class ........................................................ 38

Number of measureable trees ............................................................... 40

Number of measureable trees by species ........................................................... 40 Number of measureable trees by age class ........................................................ 42 Number of measureable trees by mean stand dbh class ...................................... 44

Biomass stocks in live woodland trees .................................................. 46

Biomass stocks by species ............................................................................... 46

Carbon stocks in live woodland trees .................................................... 48

Carbon stocks by species ................................................................................. 48

Existing woodland management information and economic viability data (PS only) ............................................................................................... 50

Sample square distribution .............................................................................. 50 Evidence of management ................................................................................ 51 Evidence of thinning ....................................................................................... 53 Suitability for harvesting ................................................................................. 54 Distance to road ............................................................................................. 55

Part 2 - what our woodlands are like today


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Type of road or ride ........................................................................................ 56 Mean yield class ............................................................................................. 57

Overdue timber stocks .......................................................................... 59

Overdue volume and area ............................................................................... 59



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Woodland area statistics

Woodland area by woodland type Figure 1 Woodland area by woodland type Table 1 Woodland area by woodland type

Woodland land cover

Non-woodland land cover

Woodland Type Area (ha) %

Woodland 108,833 97%Assumed woodland 2,687 2%Low density 257 0%Total mapped woodland 111,777 100%Non-woodland area 915,123Land area 1,026,900Woodland land cover 11%Non-woodland land cover 89%

Devon Cornwall and the Isles of Scilly



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Woodland area by ownership Figure 2 Woodland area by ownership Table 2 Woodland area by ownership

Forestry Commission

Other ownership

Ownership Area (ha) % Woodland

Forestry Commission 11,420 10%Other ownership 100,357 90%Total area of woodland 111,777 100%




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Woodland area by interpreted forest type Figure 3 Woodland area by interpreted forest type Table 3 Woodland area by interpreted forest type

Broadleaved

Conifer

Felled

Ground prep

Mixed mainly broadleaved

Mixed mainly conifer

Young trees

Coppice

Coppice with standards

Shrub

Assumed woodland

Low density

Failed

Windthrow

Cloud/shadow/uncertain

Broadleaved 71,021 64%Conifer 23,712 21%Felled 1,068 1%Ground prep 573 1%Mixed mainly broadleaved 2,127 2%Mixed mainly conifer 2,162 2%Young trees 7,267 7%Coppice 33 0%Coppice with standards 0 0%Shrub 864 1%Assumed woodland 2,687 2%Low density 257 0%Failed 0 0%Windthrow 0 0%Cloud/shadow/uncertain 5 0%TOTALS 111,777 100%

Forest typeTotal area

(ha)% of total

areaDevon Cornwall and the Isles of Scilly



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Woodland area by interpreted forest type and woodland size Figure 4 Woodland area by interpreted forest type and woodland size Table 4 Woodland area by interpreted woodland type and woodland size

0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

0.5 – < 2 ha2 ha and over

2 ha and over 0.5 – < 2 ha

Devon Cornwall and the Isles of ScillyBroadleaved 61,741 9,280 71,021Conifer 23,298 414 23,712Felled 1,059 9 1,068Ground prep 538 35 573Mixed mainly broadleaved 1,713 414 2,127Mixed mainly conifer 1,909 253 2,162Young trees 6,785 482 7,267Coppice 33 0 33Coppice with standards 0 0 0Shrub 572 293 864Assumed woodland 2,464 223 2,687Low density 235 22 257Failed 0 0 0Windthrow 0 0 0Cloud/shadow/uncertain 5 0 5TOTALS 100,353 11,424 111,777

Forest typeWoodland size Total area

(ha)



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Woodland area by interpreted forest type and ownership Figure 5 Woodland area by interpreted forest type and ownership Table 5 Woodland area by interpreted forest type and ownership

Forestry Commission

Other ownership

Broadleaved

Conifer

Felled

Ground prep

Mixed mainly broadleaved

Mixed mainly conifer

Young trees

Coppice

Coppice with standards

Shrub

Assumed Woodland

Low Density

Failed

Windthrow

Cloud/shadow/uncertain

Area (ha) % of total area

Area (ha) % of total area

Devon Cornwall and the Isles of ScillyBroadleaved 1,207 11% 69,814 70%Conifer 7,710 68% 16,002 16%Felled 551 5% 517 1%Ground prep 94 1% 479 0%Mixed mainly broadleaved 251 2% 1,876 2%Mixed mainly conifer 270 2% 1,892 2%Young trees 1,299 11% 5,968 6%Coppice 0 0% 33 0%Coppice with standards 0 0% 37 0%Shrub 11 0% 975 1%Assumed Woodland 18 0% 2,530 3%Low Density 9 0% 229 0%Failed 0 0% 0 0%Windthrow 0 0% 0 0%Cloud/shadow/uncertain 0 0% 5 0%TOTALS 11,420 100% 100,357 100%

Forest typeForestry Commission Other ownership



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Woodland area by interpreted forest type, woodland size and ownership Table 6 Woodland area by interpreted forest type, woodland size and ownership

Forestry Commission

Other Forestry Commission

Other

Broadleaved 1,203 60,538 4 9,276 71,021Conifer 7,707 15,591 3 411 23,712Felled 551 508 0 9 1,068Ground prep 92 446 2 33 573Mixed mainly broadleaved 251 1,462 0 414 2,127Mixed mainly conifer 270 1,639 0 253 2,162Young trees 1,299 5,486 0 482 7,267Coppice 0 33 0 0 33Coppice with standards 0 0 0 0 0Shrub 11 561 0 293 864Assumed woodland 18 2,446 0 223 2,687Low Density 9 227 0 22 257Failed 0 0 0 0 0Windthrow 0 0 0 0 0Cloud/shadow/uncertain 0 5 0 0 5Totals 11,411 88,942 9 11,415 111,777

Forest type2 ha and over 0.5 – < 2 ha

Total area (ha)




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Woodland area by size class distribution Figure 6 Woodland area by size class distribution Table 7 Woodland area by size class distribution

0

5,000

10,000

15,000

20,000

25,000

30,000

<2

2 –

<10

10 –

<20

20 –

<50

50 –

<10

0

100

–<

500

500

and

>

Woodland size class (ha)

Total area(ha)

Numberof woods

Size class (ha)

Total area (ha)

Number of woods

% of total area

Mean wood area (ha)

Devon Cornwall and the Isles of Scilly<2 11,424 11,538 10% < 12 – <10 23,933 5,572 21% 410 – <20 14,144 1,019 13% 1420 – <50 20,649 678 18% 3050 – <100 17,036 250 15% 68100 – <500 22,326 127 20% 176500 and > 2,265 4 2% 566All woods 111,777 19,188 100% 6



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Open areas in woodland by land use type Figure 7 Open areas in woodland by land use type Table 8 Open areas in woodland by land use type

Agricultural

Bare area

Grass

Power line

Quarry

River

Road

Urban

Other vegetation

Open water

Wind farm

Devon Cornwall and the Isles of ScillyAgricultural 118 8%Bare area 70 5%Grass 1,119 77%Power line 0 0%Quarry 1 0%River 3 0%Road 2 0%Urban 25 2%Other vegetation 69 5%Open water 38 3%Wind farm 0 0%TOTALS 1,444 100%

Interpreted open areaTotal area

(ha)% of total

area



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Net area under canopy Stocked area by species Figure 8 Stocked area by principal tree species

Sitka spruceScots pine

Corsican pineNorway spruce

LarchesDouglas fir

Lodgepole pineOther conifers

OakBeech

SycamoreAsh

BirchSweet chestnut

HazelHawthorn

AlderWillow

Other broadleaves

0 5 10 15 20Stocked area (000 ha)



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Table 9 Stocked area by principal tree species

FC Totalarea

(000 ha)area

(000 ha)SE% area

(000 ha)ConifersSitka spruce 4.1 5.6 15 9.7Scots pine 0.4 1.1 30 1.5Corsican pine 0.3 0.3 54 0.6Norway spruce 0.3 1.5 22 1.8Larches 0.5 2.7 18 3.3Douglas fir 1.9 4.1 14 6.1Lodgepole pine < 0.1 < 0.1 77 0.2Other conifers 0.5 1.2 21 1.8All conifers 8.1 16.7 5 24.8BroadleavesOak 0.3 15.6 7 15.9Beech 0.4 5.3 12 5.7Sycamore < 0.1 7.2 12 7.2Ash < 0.1 11.0 9 11.0Birch < 0.1 4.9 12 5.0Sweet chestnut < 0.1 2.6 21 2.7Hazel < 0.1 8.2 9 8.2Hawthorn 0.0 2.8 15 2.8Alder < 0.1 4.3 16 4.3Willow 0.0 8.5 12 8.5Other broadleaves 1.3 9.2 9 10.5All broadleaves 2.2 79.5 2 81.7All speciesAll species 10.3 96.4 2 106.7

Principal speciesPrivate sector



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Figure 9 Stocked area by principal conifer species Figure 10 Stocked area by principal broadleaved species

39%

6%2%7%

13%

25%

1%7%

Sitka spruce

Scots pine

Corsican pine

Norway spruce

Larches

Douglas fir

Lodgepole pine

Other conifers

19%

7%

9%

13%6%

3%

10%

3%

5%

10%

13%

Oak

Beech

Sycamore

Ash

Birch

Sweet chestnut

Hazel

Hawthorn

Alder

Willow

Other broadleaves



Go to Part 2

Stocked area by age class Figure 11 Stocked area by age class

0 5 10 15 20 25 30

0–10 years11–20 years21–40 years41–60 years61–80 years

81–100 years100+ years





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Table 10 Stocked area by age class

FC Total

area(000 ha)

area(000 ha)

SE% area(000 ha)

All conifers0–10 0.8 0.5 54 1.311–20 1.5 1.8 30 3.321–40 2.5 4.1 15 6.641–60 2.5 7.7 11 10.261–80 0.6 2.1 23 2.781–100 0.2 0.2 52 0.4100+ < 0.1 0.3 48 0.3Total 8.1 16.7 5 24.8All broadleaves0–10 0.1 9.2 11 9.311–20 0.1 13.8 8 14.021–40 0.3 20.7 6 21.041–60 0.7 16.6 7 17.361–80 0.4 8.1 10 8.481–100 0.2 7.7 12 7.9100+ 0.3 3.5 15 3.8Total 2.2 79.5 2 81.7All species0–10 1.0 9.7 11 10.611–20 1.6 15.6 8 17.321–40 2.8 24.9 6 27.741–60 3.1 24.4 6 27.561–80 1.0 10.3 9 11.281–100 0.4 7.8 12 8.3100+ 0.3 3.8 15 4.1Total 10.3 96.4 2 106.7

Age class (years)Private sector



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Stocked area by mean stand dbh class Figure 12 Stocked area by mean stand dbh class

0 5 10 15 20

0–7 cm7–10 cm

10–15 cm15–20 cm20–30 cm30–40 cm40–60 cm60–80 cm

80+ cm

0–7 cm7–10 cm

10–15 cm15–20 cm20–30 cm30–40 cm40–60 cm60–80 cm

80+ cm

0–7 cm7–10 cm

10–15 cm15–20 cm20–30 cm30–40 cm40–60 cm60–80 cm

80+ cm

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Table 11 Stocked area by mean stand dbh class

FC Totalarea

(000 ha)area

(000 ha)SE% area

(000 ha)All conifers0–7 1.1 0.8 42 1.97–10 0.5 1.3 34 1.910–15 1.2 1.7 22 2.915–20 0.8 0.7 25 1.520–30 1.4 4.0 14 5.430–40 1.6 5.0 14 6.640–60 1.3 2.7 18 4.060–80 0.2 0.4 38 0.580+ < 0.1 0.2 52 0.2Total 8.1 16.7 5 24.8All broadleaves0–7 0.2 10.6 10 10.87–10 0.3 13.9 7 14.210–15 0.4 13.6 8 14.015–20 0.3 7.7 10 8.120–30 0.6 10.5 8 11.130–40 0.3 8.2 10 8.540–60 0.1 9.5 10 9.760–80 < 0.1 3.6 17 3.680+ < 0.1 1.8 25 1.8Total 2.2 79.5 2 81.7All species0–7 1.3 11.4 9 12.77–10 0.8 15.3 7 16.110–15 1.6 15.3 7 16.915–20 1.1 8.4 10 9.620–30 1.9 14.5 7 16.430–40 1.9 13.2 8 15.140–60 1.4 12.2 9 13.760–80 0.2 4.0 16 4.280+ < 0.1 2.0 23 2.1Total 10.3 96.4 2 106.7

Mean stand DBH (cm)Private sector



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Clearfelled area Table 12 Clearfelled area

Comparison of mapped area estimates and stocked area estimates Figure 13 Simplified comparison of mapped area and stocked area Table 13 Simplified comparison of mapped area and stocked area The broadleaved class includes broadleaved, mixed mainly broadleaved, coppice and coppice with standards. The conifer class includes conifer and mixed mainly conifer. The transition class is excluded from this table as it is not possible to differentiate between conifer and broadleaves with aerial photography interpretation. The area of young trees is included in the field sample based estimates.

FC Totalarea

(000 ha)area

(000 ha)SE% area

(000 ha)


0.6 0.8 36 1.4

Clearfelled areaPrivate sector

0 20 40 60 80 100 120

Woodland mapbased

Field samplebased

Area (000 ha)

Broadleaved

Conifer

Woodland map based

Field sample based

Devon Cornwall and the Isles of ScillyBroadleaved 73.2 81.7Conifer 25.9 24.8

area(000 ha)



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Standing volume Standing volume by species Figure 14 Standing volume by principal tree species



LarchesDouglas fir


OakBeech

SycamoreAsh

BirchSweet chestnut

HazelHawthorn

AlderWillow

Other broadleaves

0 2,000 4,000 6,000 8,000Standing volume (000 m3 obs)



Go to Part 2

Table 14 Standing volume by principal tree species

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

ConifersSitka spruce 801 2,257 19 3,058Scots pine 81 289 28 369Corsican pine 62 119 62 181Norway spruce 98 661 23 759Larches 68 1,005 18 1,073Douglas fir 485 1,550 17 2,035Lodgepole pine 20 18 75 38Other conifers 207 532 24 738All conifers 1,822 6,430 7 8,251BroadleavesOak 46 6,553 11 6,599Beech 73 1,602 22 1,676Sycamore 1 1,519 19 1,520Ash 2 2,533 11 2,535Birch 5 654 13 659Sweet chestnut 4 1,116 26 1,120Hazel < 1 581 16 581Hawthorn 0 107 21 107Alder < 1 890 18 891Willow 0 833 15 833Other broadleaves 161 922 19 1,082All broadleaves 293 17,158 6 17,451All speciesAll species 2,115 23,618 5 25,734




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Figure 15 Standing volume by principal conifer species Figure 16 Standing volume by principal broadleaved species

37%

4%2%

9%

13%

25%

0%9%

Sitka spruce

Scots pine

Corsican pine

Norway spruce

Larches

Douglas fir

Lodgepole pine

Other conifers

37%

10%9%

14%

4%

6%

3%1%

5%

5%6%

Oak

Beech

Sycamore

Ash

Birch

Sweet chestnut

Hazel

Hawthorn

Alder

Willow

Other broadleaves



Go to Part 2

Standing volume by age class Figure 17 Standing volume by age class

0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000







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Table 15 Standing volume by age class

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

All conifers0–10 1 < 1 61 211–20 67 62 42 12921–40 537 1,171 20 1,70841–60 897 3,822 13 4,71961–80 247 1,136 24 1,38381–100 69 134 44 203100+ 4 104 60 108Total 1,822 6,430 7 8,251All broadleaves0–10 < 1 67 28 6711–20 1 690 11 69121–40 21 2,611 9 2,63341–60 97 4,057 9 4,15461–80 68 3,440 13 3,50781–100 37 3,553 14 3,591100+ 69 2,738 20 2,807Total 293 17,158 6 17,451All species0–10 1 68 28 6911–20 68 752 10 82121–40 559 3,799 9 4,35841–60 994 7,860 8 8,85461–80 314 4,602 11 4,91681–100 107 3,691 14 3,798100+ 72 2,846 19 2,918Total 2,115 23,618 5 25,734




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Standing volume by mean stand dbh class Figure 18 Standing volume by stand mean dbh class

0 1,000 2,000 3,000 4,000 5,000 6,000 7,000

0–7 cm7–10 cm

10–15 cm15–20 cm20–30 cm30–40 cm40–60 cm60–80 cm

80+ cm

0–7 cm7–10 cm

10–15 cm15–20 cm20–30 cm30–40 cm40–60 cm60–80 cm

80+ cm

0–7 cm7–10 cm

10–15 cm15–20 cm20–30 cm30–40 cm40–60 cm60–80 cm

80+ cm

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Table 16 Standing volume by mean stand dbh class

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

All conifers0–7 < 1 < 1 85 < 17–10 12 37 34 4910–15 121 228 24 34915–20 180 202 29 38220–30 388 1,661 18 2,04930–40 516 2,301 15 2,81840–60 522 1,562 21 2,08460–80 73 134 40 20780+ 10 303 58 313Total 1,822 6,430 7 8,251All broadleaves0–7 < 1 48 19 487–10 9 558 9 56710–15 48 1,412 9 1,46115–20 64 1,143 11 1,20720–30 89 2,618 11 2,70730–40 54 2,781 12 2,83540–60 24 4,175 12 4,19960–80 4 2,671 20 2,67680+ 1 1,751 25 1,752Total 293 17,158 6 17,451All species0–7 < 1 48 19 497–10 21 596 9 61610–15 169 1,644 8 1,81315–20 243 1,350 10 1,59320–30 477 4,257 9 4,73430–40 570 5,108 9 5,67840–60 546 5,745 10 6,29160–80 77 2,810 19 2,88780+ 11 2,062 24 2,073Total 2,115 23,618 5 25,734

Mean stand DBH (cm)Private sector



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Number of measureable trees Number of measureable trees by species Figure 19 Number of measureable trees by principal tree species



LarchesDouglas fir


OakBeech

SycamoreAsh

BirchSweet chestnut

HazelHawthorn

AlderWillow

Other broadleaves

0 5,000 10,000 15,000 20,000Number of trees (thousands)



Go to Part 2

Table 17 Number of measureable trees by principal tree species

FC Totalnumber of trees

(thousands)number of trees

(thousands)SE% number of trees

(thousands)ConifersSitka spruce 4,589 6,359 21 10,948Scots pine 222 421 34 643Corsican pine 210 262 56 472Norway spruce 116 1,440 24 1,556Larches 726 1,751 20 2,478Douglas fir 1,571 4,006 21 5,577Lodgepole pine 131 123 99 255Other conifers 392 795 22 1,187All conifers 7,958 15,158 10 23,115BroadleavesOak 241 8,403 9 8,645Beech 351 7,381 18 7,732Sycamore 4 9,050 15 9,054Ash 13 11,990 10 12,003Birch 84 6,323 14 6,407Sweet chestnut 25 1,926 20 1,951Hazel < 1 17,082 10 17,083Hawthorn 0 3,708 18 3,708Alder 24 4,197 19 4,221Willow 0 16,026 15 16,026Other broadleaves 1,846 12,753 11 14,599All broadleaves 2,587 98,449 4 101,036All speciesAll species 10,545 113,612 4 124,157




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Number of measureable trees by age class Figure 20 Number of measureable trees by age class

0 10,000 20,000 30,000 40,000 50,000 60,000







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Number of trees (thousands)

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Table 18 Number of measureable trees by age class




(thousands)All conifers0–10 192 17 59 20911–20 3,132 3,525 35 6,65721–40 3,178 5,958 17 9,13641–60 1,141 4,855 13 5,99661–80 217 755 25 97281–100 95 33 47 128100+ 3 15 49 18Total 7,958 15,158 10 23,115All broadleaves0–10 2 2,366 20 2,36811–20 226 32,006 9 32,23221–40 915 39,532 8 40,44741–60 795 15,746 10 16,54161–80 304 5,235 14 5,54081–100 137 2,384 13 2,521100+ 209 1,180 18 1,389Total 2,587 98,449 4 101,036All species0–10 194 2,383 20 2,57711–20 3,358 35,528 9 38,88621–40 4,093 45,588 7 49,68041–60 1,936 20,492 8 22,42861–80 521 6,008 12 6,52981–100 231 2,418 13 2,649100+ 212 1,196 18 1,408Total 10,545 113,612 4 124,157




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Number of measureable trees by mean stand dbh class Figure 21 Number of measureable trees by mean stand dbh class

0 10,000 20,000 30,000 40,000 50,000

0–7 cm7–10 cm

10–15 cm15–20 cm20–30 cm30–40 cm40–60 cm60–80 cm

80+ cm

0–7 cm7–10 cm

10–15 cm15–20 cm20–30 cm30–40 cm40–60 cm60–80 cm

80+ cm

0–7 cm7–10 cm

10–15 cm15–20 cm20–30 cm30–40 cm40–60 cm60–80 cm

80+ cm

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Table 19 Number of measureable trees by mean stand dbh class




(thousands)All conifers0–7 cm 198 14 85 2127–10 cm 1,352 3,146 34 4,49810–15 cm 3,029 3,911 25 6,94015–20 cm 1,405 1,137 28 2,54120–30 cm 1,091 3,665 16 4,75630–40 cm 573 2,386 14 2,95940–60 cm 291 835 21 1,12660–80 cm 17 34 38 5180+ cm 1 30 57 31Total 7,958 15,158 10 23,115All broadleaves0–7 cm 43 7,098 17 7,1417–10 cm 793 39,442 8 40,23510–15 cm 912 28,284 9 29,19615–20 cm 459 8,567 11 9,02620–30 cm 273 7,775 10 8,04830–40 cm 86 3,757 11 3,84440–60 cm 19 2,561 11 2,58060–80 cm 1 727 19 72880+ cm < 1 239 26 239Total 2,587 98,449 4 101,036All species0–7 cm 241 7,113 17 7,3547–10 cm 2,145 42,590 7 44,73510–15 cm 3,941 32,247 8 36,18815–20 cm 1,864 9,725 10 11,58820–30 cm 1,364 11,339 9 12,70330–40 cm 659 6,162 9 6,82140–60 cm 310 3,405 10 3,71660–80 cm 19 762 18 78080+ cm 1 269 24 271Total 10,545 113,612 4 124,157

Mean stand DBH Private sector



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Biomass stocks in live woodland trees Biomass stocks by species Figure 22 Biomass stocks by principal tree species



LarchesDouglas fir


OakBeech

SycamoreAsh

BirchSweet chestnut

HazelHawthorn

AlderWillow

Other broadleaves

0 1,000 2,000 3,000 4,000 5,000 6,000biomass (000 odt)



Go to Part 2

Table 20 Biomass stocks by principal tree species

FC Totalbiomass

(000 odt)biomass

(000 odt)SE% biomass

(000 odt)ConifersSitka spruce 510 1,280 18 1,789Scots pine 58 203 28 260Corsican pine 37 68 61 105Norway spruce 53 347 23 399Larches 47 582 18 628Douglas fir 331 996 17 1,327Lodgepole pine 14 13 74 27Other conifers 113 295 23 408All conifers 1,162 3,783 7 4,945BroadleavesOak 42 5,553 10 5,595Beech 68 1,387 21 1,454Sycamore 1 1,316 18 1,317Ash 2 2,171 11 2,173Birch 5 627 13 632Sweet chestnut 4 855 25 859Hazel < 1 580 14 580Hawthorn 0 130 20 130Alder < 1 704 18 705Willow 0 962 15 962Other broadleaves 149 845 15 994All broadleaves 271 15,034 5 15,305All speciesAll species 1,433 18,834 4 20,267




Go to Part 2

Carbon stocks in live woodland trees Carbon stocks by species Figure 23 Carbon stocks by principal tree species



LarchesDouglas fir


OakBeech

SycamoreAsh

BirchSweet chestnut

HazelHawthorn

AlderWillow

Other broadleaves

0 500 1,000 1,500 2,000 2,500 3,000carbon (000 t)



Go to Part 2

Table 21 Carbon stocks by principal tree species

FC Totalcarbon (000 t)

carbon(000 t)

SE% carbon(000 t)

ConifersSitka spruce 255 640 18 895Scots pine 29 101 28 130Corsican pine 18 34 61 52Norway spruce 26 173 23 200Larches 23 291 18 314Douglas fir 166 498 17 664Lodgepole pine 7 6 74 14Other conifers 56 148 23 204All conifers 581 1,891 7 2,472BroadleavesOak 21 2,776 10 2,797Beech 34 693 21 727Sycamore < 1 658 18 659Ash < 1 1,086 11 1,087Birch 3 313 13 316Sweet chestnut 2 427 25 429Hazel < 1 290 14 290Hawthorn 0 65 20 65Alder < 1 352 18 352Willow 0 481 15 481Other broadleaves 74 423 15 497All broadleaves 136 7,517 5 7,653All speciesAll species 717 9,417 4 10,134




Go to Part 2

Existing woodland management information and economic viability data (PS only)

Sample square distribution Table 22 Sample square distribution

Number of squares surveyed Number of squares surveyed

Number of Private sector squares surveyed

Number of Private sector squares containing coniferous species

Number of Private sector squares

containing broadleaved species

Devon Cornwall and the Isles of Scilly 321 318 169 304



Go to Part 2

Evidence of management Figure 24 Evidence of management in PS broadleaf sections Figure 25 Evidence of management in PS conifer sections

0

5

10

15

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Management < 3 yrs old

Management > 3 yrs old

Management both < 3yrs and > 3 yrs

* Brash Removal / Mulched / Burnt

0

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% o

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Go to Part 2

Figure 26 Evidence of management in PS mixed broadleaf/conifer sections Figure 27 Evidence of management in PS sections with no broadleaf or conifer

0

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Agr

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Go to Part 2

Evidence of thinning Figure 28 Evidence of thinning

0

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20

25

30

35

Firstthinning

Subsequentthinning

Firstthinning

Subsequentthinning

Firstthinning

Subsequentthinning

Firstthinning

Subsequentthinning

% o

f PS

sect

ions

(of t

ype)

Thinning < 3years AND > 3years

Thinning > 3years ONLY

Thinning < 3years ONLY

Broadleaf Conifer Mixed None



Go to Part 2

Suitability for harvesting Figure 29 Suitability for harvesting

0%

10%

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60%

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80%

90%

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Devo

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% o

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(by

type

) on

the

priv

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sect

or e

stat

e

Not possible toassess

Mechanisedharvestingimpossible on siteSky line site

Tracked vehicleonly on site

Wheeled vehiclepossible on site



Go to Part 2

Distance to road Figure 30 Distance to road

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Devo

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Non

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e se

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est

ate

> 1000m

800m - 1000m

600m - 800m

400m - 600m

200m - 400m

< 200m



Go to Part 2

Type of road or ride Figure 31 Road or ride in survey square Figure 32 Type of road or ride in survey square

0

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Go to Part 2

Mean yield class Figure 33 Mean yield class by principal tree species (FC and PS)

14.2

16.0

4.6

17.3

9.0

12.5

14.1

11.9

16.5

8.7

16.4

3.9

6.3

4.4

5.2

3.1

5.8

2.3

0.0

5.9

0.0

4.0

6.8

13.1

5.2

15.4

8.1

11.7

14.8

11.0

12.6

10.3

14.3

4.7

7.3

5.3

6.3

5.6

6.9

2.9

4.3

5.3

4.0

5.8

0 5 10 15 20

All species

All conifers

All broadleaves

Sitka spruce

Scots pine

Corsican pine

Norway spruce

Larches

Douglas fir

Lodgepole pine

Other conifers

Oak

Beech

Sycamore

Ash

Birch

Sweet chestnut

Hazel

Hawthorn

Alder

Willow

Other broadleaves

Coni

fers

Broa

dlea

ves

Yield class

FC

PS



Go to Part 2

Table 23 Mean yield class by principal tree species (FC and PS)

FC Private sector

ConifersSitka spruce 17.3 15.4Scots pine 9.0 8.1Corsican pine 12.5 11.7Norway spruce 14.1 14.8Larches 11.9 11.0Douglas fir 16.5 12.6Lodgepole pine 8.7 10.3Other conifers 16.4 14.3All conifers 16.0 13.1BroadleavesOak 3.9 4.7Beech 6.3 7.3Sycamore 4.4 5.3Ash 5.2 6.3Birch 3.1 5.6Sweet chestnut 5.8 6.9Hazel 2.3 2.9Hawthorn 0.0 4.3Alder 5.9 5.3Willow 0.0 4.0Other broadleaves 4.0 5.8All broadleaves 4.6 5.2All speciesAll species 14.2 6.8

Principal speciesmean yield class weighted by area



Go to Part 2

Overdue timber stocks

Overdue volume and area Table 24 Standing volume in overdue timber stocks Table 25 Stocked area of overdue timber stocks

FCvolume

(000 m3 obs)volume

(000 m3 obs)SE %

Devon Cornwall and the Isles of ScillyAll conifers 8 2,283 14All broadleaves < 1 9,427 9All species 8 11,722 8

Private sector

FCarea

(000 ha)area

(000 ha)SE %

Devon Cornwall and the Isles of ScillyAll conifers < 0.1 4.6 14All broadleaves < 0.1 20.7 6All species < 0.1 25.3 6

Private sector



Go to Part 3

Part 3 – How our woodlands might change over time 25-year softwood forecast .................................................................... 61

25-year forecast of softwood timber availability ................................................. 61 25-year forecast of softwood timber availability by principal species ..................... 63 25-year forecast of softwood timber availability % spruce ................................... 64 25-year forecast of softwood timber availability by top diameter class .................. 65 25-year forecast of standing volume in conifers.................................................. 67 25-year forecast of net increment in conifers ..................................................... 68 Combined standing volume, net increment and availability .................................. 69


50-year forecast of softwood timber availability ................................................. 70 50-year forecast of softwood timber availability by principal species ..................... 72 50-year forecast of softwood timber availability % spruce ................................... 75 50-year forecast of standing volume in conifers.................................................. 76 50-year forecast of net increment in conifers ..................................................... 77 Combined standing volume, net increment and availability .................................. 78

50-year hardwood forecast ................................................................... 79

50-year forecast of hardwood timber availability ................................................ 79 50-year forecast of hardwood timber availability by principal species .................... 81 50-year forecast of hardwood timber availability by top diameter class ................. 84 50-year forecast of standing volume in broadleaves ............................................ 87 50-year forecast of net increment in broadleaves ............................................... 91 Combined standing volume, net increment and availability .................................. 95

Part 3 - how our woodlands might change


Go to Part 3

25-year softwood forecast 25-year forecast of softwood timber availability Figure 34 Summary of 25–year forecast of softwood timber availability; average annual volume within period

0

100

200

300

400

500

600

2013–16 2017–21 2022–26 2027–31 2032–36 2037–41

Aver

age

annu

al v

olum

e pe

r per

iod

(000

s m3

obs)

Forecast period

FC

PS

FC+PS



Go to Part 3

Figure 35 25–year forecast of softwood timber availability; average annual volume within period Table 26 25–year forecast of softwood availability; average annual volume within period

0

100

200

300

400

500

600

2013–16 2017–21 2022–26 2027–31 2032–36 2037–41

Volu

me

(ave

rage

ann

ual i

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in 0

00 m

3ob

s)

Forecast period

FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly2013–16 76 238 18 3142017–21 72 259 17 3312022–26 73 420 18 4932027–31 92 350 16 4432032–36 77 257 20 3342037–41 89 166 15 255

Forecast periodPrivate sector



Go to Part 3

25-year forecast of softwood timber availability by principal species Table 27 25-year forecast of softwood timber availability by principal species; average annual volume within period Table 27 (cont’d) 25-year forecast of softwood timber availability by principal species; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll conifers 76 330 17 72 520 16Sitka spruce 50 129 36 46 263 31Scots pine 3 8 31 3 5 30Corsican pine 2 10 52 3 18 91Norway spruce 3 15 26 2 28 30Larches 2 59 20 3 56 20Douglas fir 7 92 39 10 106 23Lodgepole pine 2 < 1 93 < 1 < 1 116Other conifers 7 18 25 4 43 35

Private sector Private sectorPrincipal species

2013–16 2017–21

volume(000 m3 obs)

volume(000 m3 obs)

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll conifers 73 73 12 92 212 15Sitka spruce 45 18 27 57 66 35Scots pine 2 7 47 2 18 51Corsican pine 4 < 1 65 2 < 1 65Norway spruce 2 5 28 3 35 35Larches 4 11 22 4 26 22Douglas fir 10 23 26 16 44 22Lodgepole pine < 1 1 85 < 1 < 1 116Other conifers 4 6 36 6 22 41

volume(000 m3 obs)

volume(000 m3 obs)

Principal species

2022–26 2027–31Private sector Private sector



Go to Part 3

Table 27 (cont’d) 25-year forecast of softwood timber availability by principal species; average annual volume within period

25-year forecast of softwood timber availability % spruce Table 28 25-year forecast of softwood timber availability % spruce

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll conifers 77 228 15 89 167 21Sitka spruce 43 33 20 46 78 41Scots pine 3 6 36 3 4 29Corsican pine 3 < 1 65 1 4 90Norway spruce < 1 85 37 3 17 53Larches 4 28 22 4 14 22Douglas fir 16 58 24 23 29 26Lodgepole pine < 1 < 1 116 < 1 < 1 110Other conifers 7 17 40 7 20 44

Principal speciesvolume

(000 m3 obs)volume

(000 m3 obs)


7–14 14–16 16–18 18–24 24–34 34–44 44–54 54+ Total

FC (%) 70 74 74 72 69 67 66 59 70

PS (%) 45 39 43 49 53 42 29 11 44

FC (%) 65 70 73 72 67 63 61 44 66

PS (%) 47 46 45 51 60 62 64 36 56

FC (%) 61 70 73 75 67 60 58 39 65

PS (%) 49 45 37 31 28 30 30 32 32

FC (%) 61 66 70 74 71 61 55 39 65

PS (%) 60 59 56 50 44 43 43 42 47

FC (%) 57 61 62 62 61 56 47 25 57

PS (%) 55 52 50 48 53 56 57 42 52

FC (%) 52 58 60 61 62 57 53 33 56

PS (%) 55 69 72 71 56 45 44 38 572037–41


Top diameter class (cm)

2017–21

2022–26

2027–31

2032–36

2013–16



Go to Part 3

25-year forecast of softwood timber availability by top diameter class Table 29 25-year forecast of softwood timber availability by top diameter class; average annual volume within period Table 29 (cont’d) 25-year forecast of softwood timber availability by top diameter class; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of Scilly7–14 17 32 14 14 34 1214–16 6 12 14 5 13 1316–18 5 15 16 5 19 1518–24 15 69 19 15 98 1724–34 17 104 21 16 190 1834–44 8 47 25 8 92 2144–54 4 22 29 4 43 2554+ 3 29 42 4 31 23Total 76 330 17 72 520 16

volume(000 m3 obs)



volume(000 m3 obs)

FC FC

SE% SE%


Private sectorPrivate sectorTop diameter class (cm)

2027–312022–26

volume(000 m3 obs)

volume(000 m3 obs)



Go to Part 3

Table 29 (cont’d) 25-year forecast of softwood timber availability by top diameter class; average annual volume within period

FC FC

SE% SE%


volume(000 m3 obs)

volume(000 m3 obs)





Go to Part 3

25-year forecast of standing volume in conifers Figure 36 25-year forecast of standing volume in conifers Table 30 25-year forecast of standing volume in conifers; average annual volume within period

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

2013–16 2017–21 2022–26 2027–31 2032–36 2037–41

Stan

ding

vol

ume

(ave

rage

ann

ual i

n pe

riod

in 0

00 m

3ob

s)

Forecast period

FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly2013–16 1,877 6,009 7 7,8862017–21 2,068 4,902 7 6,9702022–26 2,198 3,996 8 6,1932027–31 2,255 3,553 8 5,8082032–36 2,293 3,149 9 5,4422037–41 2,327 2,971 8 5,298




Go to Part 3

25-year forecast of net increment in conifers Figure 37 25-year forecast of net increment in conifers Table 31 25-year forecast of net increment in conifers; average annual volume within period

0

50

100

150

200

250

2013–16 2017–21 2022–26 2027–31 2032–36 2037–41

Volu

me

(ave

rage

ann

ual i

n pe

riod

in 0

00 m

3ob

s)

Forecast period

FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly2013–16 108 214 6 3222017–21 105 184 7 2892022–26 99 147 9 2452027–31 94 137 9 2312032–36 89 143 9 2322037–41 88 154 8 242




Go to Part 3

Combined standing volume, net increment and availability Figure 38 25-year forecast of standing volume, net increment and softwood availability

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

2013

–16

2017

–21

2022

–26

2027

–31

2032

–36

2037

–41

2013

–16

2017

–21

2022

–26

2027

–31

2032

–36

2037

–41

2013

–16

2017

–21

2022

–26

2027

–31

2032

–36

2037

–41

Standing volume at start of period

Total net increment per period

Total availability per period

Vol

ume

(000

s of

cub

ic m

etre

s ov

erba

rk s

tand

ing)

FC PS FC+PS



Go to Part 3

50-year softwood forecast 50-year forecast of softwood timber availability Figure 39 Summary of 50-year forecast of softwood timber availability; average annual volume within period

0

100

200

300

400

500

600

700

2013–16 2017–21 2022–26 2027–31 2032–36 2037–41 2042–46 2047–51 2052–56 2057–61 2062–66

Aver

age

annu

al v

olum

e pe

r per

iod

(000

s m3

obs)

Forecast period

FC

PS

FC+PS



Go to Part 3

Figure 40 50–year forecast of softwood timber availability; average annual volume within period Table 32 Summary of 50–year forecast of softwood timber availability; average annual volume within period

0

100

200

300

400

500

600

700

2013–16 2017–21 2022–26 2027–31 2032–36 2037–41 2042–46 2047–51 2052–56 2057–61 2062–66

Volu

me

(ave

rage

ann

ual i

n pe

riod

in 0

00 m

3ob

s)

Forecast period

FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly2013–16 76 330 17 4062017–21 72 520 16 5922022–26 73 232 12 3052027–31 92 212 15 3042032–36 77 228 15 3042037–41 89 167 21 2562042–46 85 182 15 2662047–51 106 184 15 2892052–56 84 130 16 2152057–61 92 204 19 2972062–66 139 94 6 233




Go to Part 3

50-year forecast of softwood timber availability by principal species Table 33 50-year forecast of softwood timber availability by principal species; average annual volume within period Table 33 (cont’d) 50-year forecast of softwood timber availability by principal species; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll conifers 76 330 17 72 520 16Sitka spruce 50 129 36 46 263 31Scots pine 3 8 31 3 5 30Corsican pine 2 10 52 3 18 91Norway spruce 3 15 26 2 28 30Larches 2 59 20 3 56 20Douglas fir 7 92 39 10 106 23Lodgepole pine 2 < 1 93 < 1 < 1 116Other conifers 7 18 25 4 43 35


2013–16 2017–21

volume(000 m3 obs)

volume(000 m3 obs)

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll conifers 73 73 12 92 212 15Sitka spruce 45 18 27 57 66 35Scots pine 2 7 47 2 18 51Corsican pine 4 < 1 65 2 < 1 65Norway spruce 2 5 28 3 35 35Larches 4 11 22 4 26 22Douglas fir 10 23 26 16 44 22Lodgepole pine < 1 1 85 < 1 < 1 116Other conifers 4 6 36 6 22 41

volume(000 m3 obs)

volume(000 m3 obs)


2027–312022–26



Go to Part 3

Table 33 (cont’d) 50-year forecast of softwood timber availability by principal species; average annual volume within period Table 33 (cont’d) 50-year forecast of softwood timber availability by principal species; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll conifers 77 228 15 89 167 21Sitka spruce 43 33 20 46 78 41Scots pine 3 6 36 3 4 29Corsican pine 3 < 1 65 1 4 90Norway spruce < 1 85 37 3 17 53Larches 4 28 22 4 14 22Douglas fir 16 58 24 23 29 26Lodgepole pine < 1 < 1 116 < 1 < 1 110Other conifers 7 17 40 7 20 44


(000 m3 obs)volume

(000 m3 obs)

Private sectorPrivate sector2032–36 2037–41

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll conifers 85 182 15 106 184 15Sitka spruce 41 74 31 59 60 20Scots pine 2 4 23 2 35 50Corsican pine 2 4 98 2 < 1 44Norway spruce 2 18 50 3 30 57Larches 4 12 24 5 11 25Douglas fir 28 53 31 25 25 16Lodgepole pine < 1 < 1 110 < 1 3 115Other conifers 5 18 26 9 20 29

Private sectorvolume

(000 m3 obs)volume

(000 m3 obs)

Private sectorPrincipal species

2047–512042–46



Go to Part 3

Table 33 (cont’d) 50-year forecast of softwood timber availability by principal species; average annual volume within period Table 33 (cont’d) 50-year forecast of softwood timber availability by principal species; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll conifers 84 130 16 92 204 19Sitka spruce 39 53 28 46 106 35Scots pine 3 6 21 3 7 20Corsican pine 2 < 1 84 < 1 < 1 48Norway spruce 3 6 28 4 13 24Larches 5 11 24 5 13 22Douglas fir 27 41 38 28 50 31Lodgepole pine < 1 < 1 58 < 1 < 1 58Other conifers 7 13 13 6 16 13

volume(000 m3 obs)

volume(000 m3 obs)

2057–61Private sectorPrivate sector

2052–56

Principal species

FC

SE%

Devon Cornwall and the Isles of ScillyAll conifers 139 94 6Sitka spruce 45 28 16Scots pine 4 6 20Corsican pine < 1 < 1 43Norway spruce 8 11 23Larches 5 6 18Douglas fir 52 27 12Lodgepole pine < 1 < 1 58Other conifers 24 16 11


(000 m3 obs)

Principal species

2062–66



Go to Part 3

50-year forecast of softwood timber availability % spruce Table 34 50–year forecast of softwood timber availability % spruce

7–14 14–16 16–18 18–24 24–34 34–44 44–54 54+ TotalFC (%) 17 6 5 15 17 8 4 3 76PS (%) 45 39 43 49 53 42 29 11 44FC (%) 14 5 5 15 16 8 4 4 72PS (%) 47 46 45 51 60 62 64 36 56FC (%) 13 5 5 15 17 9 5 4 73PS (%) 49 45 37 31 28 30 30 32 32FC (%) 11 5 5 19 26 13 7 6 92PS (%) 60 59 56 50 44 43 43 42 47FC (%) 9 3 4 15 24 12 6 5 77PS (%) 55 52 50 48 53 56 57 42 52FC (%) 10 3 4 14 26 15 8 9 89PS (%) 55 69 72 71 56 45 44 38 57FC (%) 11 3 4 13 24 14 7 8 85PS (%) 54 59 60 52 46 48 47 41 50FC (%) 12 4 5 18 31 17 9 9 106PS (%) 47 53 53 57 58 50 46 20 49FC (%) 11 4 4 14 23 14 7 8 84PS (%) 40 47 45 47 49 48 44 49 45FC (%) 13 4 5 17 23 13 7 10 92PS (%) 42 49 46 54 65 71 73 47 58FC (%) 15 5 6 22 33 21 12 24 139PS (%) 42 43 42 42 41 40 37 47 42

2062–66



2017–21

2022–26

2027–31

2032–36

2037–41

2042–46

2047–51

2052–56

2057–61

2013–16



Go to Part 3

50-year forecast of standing volume in conifers Figure 41 50–year forecast of standing volume in conifers; average annual volume within period Table 35 50–year forecast of standing volume in conifers; average annual volume within period

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

2013–16 2017–21 2022–26 2027–31 2032–36 2037–41 2042–46 2047–51 2052–56 2057–61 2062–66

Stan

ding

vol

ume

(ave

rage

ann

ual i

n pe

riod

in 0

00 m

3 ob

s)

Forecast period

FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly2013–16 1,877 6,009 7 7,8862017–21 2,068 4,902 7 6,9702022–26 2,198 3,996 8 6,1932027–31 2,255 3,553 8 5,8082032–36 2,293 3,149 9 5,4422037–41 2,327 2,971 8 5,2982042–46 2,326 2,800 9 5,1262047–51 2,274 2,777 8 5,0512052–56 2,259 3,054 8 5,3132057–61 2,296 3,165 7 5,4612062–66 2,257 3,480 7 5,737




Go to Part 3

50-year forecast of net increment in conifers Figure 42 50-year forecast of net increment in conifers; average annual volume within period Table 36 50-year forecast of net increment in conifers; average annual volume within period

0

50

100

150

200

250

2013–16 2017–21 2022–26 2027–31 2032–36 2037–41 2042–46 2047–51 2052–56 2057–61 2062–66

Volu

me

(ave

rage

ann

ual i

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in 0

00 m

3ob

s)

Forecast period

FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000m3 obs)


Private sector



Go to Part 3

Combined standing volume, net increment and availability Figure 43 50-year forecast of standing volume, net increment and softwood availability

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

2013

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2017

–21

2022

–26

2027

–31

2032

–36

2037

–41

2042

–46

2047

–51

2052

–56

2057

–61

2062

–66

2013

–16

2017

–21

2022

–26

2027

–31

2032

–36

2037

–41

2042

–46

2047

–51

2052

–56

2057

–61

2062

–66

2013

–16

2017

–21

2022

–26

2027

–31

2032

–36

2037

–41

2042

–46

2047

–51

2052

–56

2057

–61

2062

–66




Vol

ume

(000

s of

cub

ic m

etre

s ov

erba

rk s

tand

ing)

FC PS FC+PS



Go to Part 3

50-year hardwood forecast

50-year forecast of hardwood timber availability Figure 44 Summary of 50-year forecast of hardwood timber availability; average annual volume within period

0

10

20

30

40

50

60

70

80

90

100

2013–16 2017–21 2022–26 2027–31 2032–36 2037–41 2042–46 2047–51 2052–56 2057–61 2062–66

Aver

age

annu

al v

olum

e pe

r per

iod

(000

s m3

obs)

Forecast period

FC

PS

FC+PS



Go to Part 3

Figure 45 50–year forecast of hardwood timber availability; average annual volume within period Table 37 50–year forecast of hardwood timber availability; average annual volume within period

0

20

40

60

80

100

120

2013–16 2017–21 2022–26 2027–31 2032–36 2037–41 2042–46 2047–51 2052–56 2057–61 2062–66

Volu

me

(ave

rage

ann

ual i

n pe

riod

in 0

00 m

3ob

s)

Forecast period

FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)





Go to Part 3

50-year forecast of hardwood timber availability by principal species Table 38 50-year forecast of hardwood timber availability by principal species; average annual volume within period Table 38 (cont’d) 50-year forecast of hardwood timber availability by principal species; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 1 77 23 1 72 17Oak < 1 20 51 < 1 26 32Beech < 1 4 32 < 1 7 26Sycamore < 1 4 50 < 1 3 62Ash < 1 22 25 < 1 20 27Birch < 1 8 44 < 1 6 33Sweet chestnut < 1 13 66 < 1 4 44Hazel 0 1 49 0 1 18Hawthorn 0 < 1 49 0 1 37Alder < 1 2 45 < 1 6 64Willow 0 < 1 49 0 1 31Other broadleaves < 1 4 45 < 1 7 32


2013–16 2017–21

volume(000 m3 obs)

volume(000 m3 obs)

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 1 17 24 2 54 18Oak < 1 3 24 < 1 21 28Beech < 1 4 43 < 1 8 27Sycamore < 1 < 1 40 < 1 3 51Ash < 1 4 47 < 1 2 16Birch < 1 1 42 < 1 2 31Sweet chestnut < 1 1 43 < 1 4 41Hazel 0 < 1 29 0 3 18Hawthorn 0 < 1 34 0 < 1 33Alder < 1 < 1 33 < 1 2 59Willow 0 < 1 26 0 2 23Other broadleaves < 1 1 24 < 1 11 56

volume(000 m3 obs)

volume(000 m3 obs)


2027–312022–26



Go to Part 3

Table 38 (cont’d) 50-year forecast of hardwood timber availability by principal species; average annual volume within period Table 38 (cont’d) 50-year forecast of hardwood timber availability by principal species; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 2 55 20 4 82 33Oak < 1 16 43 < 1 14 24Beech < 1 13 30 2 8 27Sycamore < 1 2 22 < 1 2 29Ash < 1 4 18 < 1 7 21Birch < 1 5 29 < 1 3 25Sweet chestnut < 1 5 41 < 1 31 82Hazel 0 3 17 0 5 24Hawthorn 0 1 30 0 1 26Alder < 1 < 1 37 < 1 1 33Willow 0 2 20 0 2 19Other broadleaves < 1 6 17 < 1 8 21


(000 m3 obs)volume

(000 m3 obs)


FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 3 90 17 4 61 14Oak < 1 18 54 < 1 7 24Beech 1 24 41 2 13 37Sycamore < 1 6 29 < 1 2 20Ash < 1 10 19 < 1 7 20Birch < 1 7 28 < 1 4 23Sweet chestnut < 1 3 40 < 1 3 40Hazel 0 6 19 0 13 28Hawthorn 0 2 22 0 2 23Alder < 1 4 47 < 1 1 32Willow 0 3 23 0 2 19Other broadleaves 2 8 16 1 11 25


(000 m3 obs)volume

(000 m3 obs)


2047–512042–46



Go to Part 3

Table 38 (cont’d) 50-year forecast of hardwood timber availability by principal species; average annual volume within period Table 38 (cont’d) 50-year forecast of hardwood timber availability by principal species; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 4 60 15 4 66 17Oak < 1 8 21 < 1 7 21Beech 1 8 28 2 17 36Sycamore < 1 5 25 < 1 2 48Ash < 1 8 21 < 1 11 25Birch < 1 4 29 < 1 8 46Sweet chestnut < 1 29 63 < 1 6 66Hazel 0 4 43 0 3 24Hawthorn 0 1 23 0 7 76Alder < 1 3 35 < 1 1 47Willow 0 4 22 0 7 62Other broadleaves 1 7 18 < 1 7 20

volume(000 m3 obs)

volume(000 m3 obs)


2052–56

Principal species

FC

SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 7 81 21Oak < 1 21 51Beech 4 11 40Sycamore < 1 4 44Ash < 1 13 29Birch < 1 6 26Sweet chestnut < 1 1 25Hazel 0 2 58Hawthorn 0 2 18Alder < 1 1 42Willow 0 6 28Other broadleaves 1 16 40


(000 m3 obs)

Principal species

2062–66



Go to Part 3

50-year forecast of hardwood timber availability by top diameter class Table 39 50-year forecast of hardwood timber availability by top diameter class; average annual volume within period Table 39 (cont’d) 50-year forecast of hardwood timber availability by top diameter class; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of Scilly7–14 < 1 13 16 < 1 17 1414–16 < 1 4 18 < 1 4 1916–18 < 1 4 18 < 1 4 2118–24 < 1 12 20 < 1 15 2224–34 < 1 18 27 < 1 18 2434–44 < 1 10 39 < 1 8 2844–54 < 1 5 46 < 1 3 3254+ < 1 11 57 < 1 3 32Total 1 77 23 1 72 17

Private sector Private sectorTop diameter class(cm)

2013–16 2017–21

volume(000 m3 obs)

volume(000 m3 obs)

FC FC

SE% SE%


volume(000 m3 obs)

volume(000 m3 obs)

Private sector Private sectorTop diameter class(cm)

2027–312022–26



Go to Part 3

Table 39 (cont’d) 50-year forecast of hardwood timber availability by top diameter class; average annual volume within period Table 39 (cont’d) 50-year forecast of hardwood timber availability by top diameter class; average annual volume within period

FC FC

SE% SE%


Top diameter class(cm) volume

(000 m3 obs)volume

(000 m3 obs)


FC FC

SE% SE%



(000 m3 obs)volume

(000 m3 obs)

Private sectorTop diameter class(cm)

2047–512042–46



Go to Part 3

Table 39 (cont’d) 50-year forecast of hardwood timber availability by top diameter class; average annual volume within period Table 39 (cont’d) 50-year forecast of hardwood timber availability by top diameter class; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of Scilly7–14 1 15 12 1 13 1214–16 < 1 4 11 < 1 4 1116–18 < 1 4 13 < 1 4 1118–24 < 1 13 15 < 1 12 1324–34 < 1 13 24 < 1 12 1934–44 < 1 6 32 < 1 7 2944–54 < 1 3 36 < 1 4 3354+ < 1 3 28 < 1 10 40Total 4 60 15 4 66 17

volume(000 m3 obs)

volume(000 m3 obs)


2052–56Top diameter class

(cm)

FC

SE%

Devon Cornwall and the Isles of Scilly7–14 2 13 1214–16 < 1 5 1516–18 < 1 5 1618–24 2 17 1724–34 1 19 2934–44 < 1 9 3344–54 < 1 4 3654+ < 1 9 69Total 7 81 21


(000 m3 obs)

Top diameter class(cm)

2062–66



Go to Part 3

50-year forecast of standing volume in broadleaves Figure 46 50–year forecast of standing volume in broadleaves; average annual volume within period Table 40 50–year forecast of standing volume in broadleaves; average annual volume within period

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

2013–16 2017–21 2022–26 2027–31 2032–36 2037–41 2042–46 2047–51 2052–56 2057–61 2062–66

Stan

ding

vol

ume

(ave

rage

ann

ual i

n pe

riod

in 0

00 m

3ob

s)

Forecast period

FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly2013–16 310 17,824 17 18,1342017–21 341 19,353 16 19,6942022–26 373 21,323 12 21,6962027–31 402 23,362 15 23,7632032–36 428 25,344 15 25,7722037–41 449 27,101 21 27,5502042–46 465 28,649 15 29,1142047–51 481 30,121 15 30,6022052–56 494 31,491 16 31,9852057–61 509 32,718 19 33,2272062–66 518 33,773 6 34,291




Go to Part 3

Table 41 50-year forecast of standing volume in broadleaves by principal species; average annual volume within period Table 41 (cont’d) 50-year forecast of standing volume in broadleaves by principal species; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 310 17,824 5 341 19,353 5Oak 47 6,681 10 50 6,939 10Beech 79 1,663 21 90 1,785 20Sycamore 1 1,563 19 1 1,677 18Ash 2 2,627 11 2 2,831 11Birch 6 707 13 6 813 13Sweet Chestnut 5 1,119 26 5 1,206 26Hazel < 1 639 15 < 1 764 13Hawthorn 0 121 20 0 152 19Alder < 1 933 17 1 1,030 16Willow 0 913 14 0 1,085 13Other broadleaves 170 1,003 19 186 1,169 18


2013–16 2017–21

volume(000 m3 obs)

volume(000 m3 obs)

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 373 21,323 5 402 23,362 4Oak 53 7,291 10 56 7,633 10Beech 101 1,940 19 110 2,099 18Sycamore 1 1,825 17 1 1,986 16Ash 2 3,085 11 3 3,355 10Birch 7 941 13 8 1,080 13Sweet Chestnut 5 1,319 25 4 1,436 25Hazel < 1 925 12 < 1 1,088 11Hawthorn 0 197 18 0 255 16Alder 1 1,160 16 2 1,293 16Willow 0 1,320 13 0 1,569 12Other broadleaves 203 1,402 16 217 1,636 15

volume(000 m3 obs)

volume(000 m3 obs)


2027–312022–26



Go to Part 3

Table 41 (cont’d) 50-year forecast of standing volume in broadleaves by principal species; average annual volume within period Table 41 (cont’d) 50-year forecast of standing volume in broadleaves by principal species; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 428 25,344 4 449 27,101 4Oak 60 7,951 9 63 8,288 9Beech 118 2,255 18 123 2,412 17Sycamore 1 2,128 16 1 2,256 15Ash 4 3,618 10 5 3,845 10Birch 9 1,199 13 10 1,308 13Sweet Chestnut 5 1,553 25 5 1,551 25Hazel < 1 1,242 11 < 1 1,365 10Hawthorn 0 317 16 0 384 15Alder 2 1,416 16 2 1,521 16Willow 0 1,820 12 0 2,066 12Other broadleaves 229 1,902 14 240 2,157 13


(000 m3 obs)volume

(000 m3 obs)


FC FC

SE% SE%



(000 m3 obs)volume

(000 m3 obs)


2047–512042–46



Go to Part 3

Table 41 (cont’d) 50-year forecast of standing volume in broadleaves by principal species; average annual volume within period Table 41 (cont’d) 50-year forecast of standing volume in broadleaves by principal species; average annual volume within period

FC FC

SE% SE%


volume(000 m3 obs)

volume(000 m3 obs)


2052–56

Principal species

FC

SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 518 33,773 4Oak 75 9,667 9Beech 143 2,959 16Sycamore 2 2,616 14Ash 7 4,516 10Birch 14 1,624 13Sweet Chestnut 5 1,835 26Hazel < 1 1,642 10Hawthorn 0 658 15Alder 3 1,839 16Willow 0 3,100 12Other broadleaves 269 3,203 11


(000 m3 obs)

Principal species

2062–66



Go to Part 3

50-year forecast of net increment in broadleaves Figure 47 50-year forecast of net increment in broadleaves; average annual volume within period Table 42 50–year forecast of net increment in broadleaves; average annual volume within period

0

100

200

300

400

500

600

2013–16 2017–21 2022–26 2027–31 2032–36 2037–41 2042–46 2047–51 2052–56 2057–61 2062–66

Volu

me

(ave

rage

ann

ual i

n pe

riod

in 0

00 m

3ob

s)

Forecast period

FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)





Go to Part 3

Table 43 50–year forecast of net increment in broadleaves by principal species; average annual volume within period Table 43 (cont’d) 50–year forecast of net increment in broadleaves by principal species; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 8 368 6 8 437 4Oak < 1 74 17 < 1 86 9Beech 3 31 17 3 39 14Sycamore < 1 24 23 < 1 31 13Ash < 1 62 11 < 1 67 10Birch < 1 29 14 < 1 32 14Sweet Chestnut < 1 22 25 < 1 25 23Hazel < 1 26 12 < 1 31 10Hawthorn 0 7 19 0 9 17Alder < 1 20 36 < 1 28 22Willow 0 34 16 0 44 12Other broadleaves 4 39 14 4 46 11


2013–16 2017–21

volume(000 m3 obs)

volume(000 m3 obs)

FC FC

SE% SE%


volume(000 m3 obs)

volume(000 m3 obs)


2027–312022–26



Go to Part 3

Table 43 (cont’d) 50–year forecast of net increment in broadleaves by principal species; average annual volume within period Table 43 (cont’d) 50–year forecast of net increment in broadleaves by principal species; average annual volume within period

FC FC

SE% SE%



(000 m3 obs)volume

(000 m3 obs)


FC FC

SE% SE%



(000 m3 obs)volume

(000 m3 obs)


2047–512042–46



Go to Part 3

Table 43 (cont’d) 50–year forecast of net increment in broadleaves by principal species; average annual volume within period Table 43 (cont’d) 50–year forecast of net increment in broadleaves by principal species; average annual volume within period

FC FC

SE% SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 7 323 3 7 299 3Oak < 1 65 7 1 63 7Beech 3 36 13 3 34 13Sycamore < 1 16 11 < 1 14 11Ash < 1 34 10 < 1 30 10Birch < 1 17 13 < 1 15 12Sweet Chestnut < 1 21 23 < 1 18 24Hazel < 1 14 10 < 1 12 10Hawthorn 0 13 16 0 13 16Alder < 1 14 19 < 1 12 19Willow 0 45 12 0 42 12Other broadleaves 2 50 9 2 47 9

volume(000 m3 obs)

volume(000 m3 obs)


2052–56

Principal species

FC

SE%

Devon Cornwall and the Isles of ScillyAll broadleaves 7 280 3Oak 1 60 7Beech 3 34 13Sycamore < 1 13 11Ash < 1 26 10Birch < 1 14 12Sweet Chestnut < 1 17 23Hazel < 1 12 10Hawthorn 0 12 16Alder < 1 11 20Willow 0 39 12Other broadleaves 2 44 9


(000 m3 obs)

Principal species

2062–66



Go to Part 3

Combined standing volume, net increment and availability Figure 48 combined hardwood standing volume, net increment and availability

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

2013

–16

2017

–21

2022

–26

2027

–31

2032

–36

2037

–41

2042

–46

2047

–51

2052

–56

2057

–61

2062

–66

2013

–16

2017

–21

2022

–26

2027

–31

2032

–36

2037

–41

2042

–46

2047

–51

2052

–56

2057

–61

2062

–66

2013

–16

2017

–21

2022

–26

2027

–31

2032

–36

2037

–41

2042

–46

2047

–51

2052

–56

2057

–61

2062

–66




Vol

ume

(000

s of

cub

ic m

etre

s ov

erba

rk s

tand

ing)

FC PS FC+PS



Go to Part 4

Part 4 – Tree health Ash ........................................................................................................ 97

Oak ...................................................................................................... 106

Sweet chestnut ................................................................................... 115

Larch ................................................................................................... 124

Part 4 – Tree health


Go to Part 4

Ash Figure 49 Stocked area of ash by age class Table 44 Stocked area of ash by age class

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5

0–10 years

11–20 years

21–40 years

41–60 years

61–80 years

81–100 years

100+ years


FC

PS

FC Totalarea

(000 ha)area

(000 ha)SE% area

(000 ha)Devon Cornwall and the Isles of Scilly0–10 < 0.1 0.8 22 0.811–20 < 0.1 1.9 18 1.921–40 0.0 2.3 17 2.341–60 < 0.1 3.7 17 3.761–80 < 0.1 1.3 24 1.381–100 < 0.1 1.0 35 1.0100+ < 0.1 0.1 45 0.1Total < 0.1 11.0 9 11.0




Go to Part 4

Figure 50 Stocked area of ash by mean stand dbh class Table 45 Stocked area of ash by mean stand dbh class

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0

0–7 cm

7–10 cm

10–15 cm

15–20 cm

20–30 cm

30–40 cm

40–60 cm

60–80 cm

80+ cm


FC

PS

FC Totalarea

(000 ha)area

(000 ha)SE% area

(000 ha)Devon Cornwall and the Isles of Scilly0–7 < 0.1 0.5 26 0.57–10 < 0.1 2.1 15 2.110–15 < 0.1 1.3 20 1.315–20 < 0.1 1.0 27 1.020–30 < 0.1 3.2 18 3.230–40 < 0.1 1.4 27 1.440–60 < 0.1 1.1 28 1.160–80 0.0 0.4 44 0.480+ < 0.1 0.0 - < 0.1Total < 0.1 11.0 9 11.0

Mean stand DBH (cm)

Private sector



Go to Part 4

Figure 51 Standing volume of ash by age class Table 46 Standing volume of ash by age class

0 200 400 600 800 1,000 1,200 1,400

0–10 years

11–20 years

21–40 years

41–60 years

61–80 years

81–100 years

100+ years


FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly0–10 < 1 4 34 411–20 < 1 84 22 8421–40 0 389 20 38941–60 < 1 1,045 18 1,04661–80 1 493 22 49481–100 < 1 409 40 409100+ < 1 108 59 108Total 2 2,533 11 2,535




Go to Part 4

Figure 52 Standing volume of ash by mean stand dbh class Table 47 Standing volume of ash by mean stand dbh class

0 200 400 600 800 1,000 1,200 1,400

0–7 cm

7–10 cm

10–15 cm

15–20 cm

20–30 cm

30–40 cm

40–60 cm

60–80 cm

80+ cm


FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly0–7 0 < 1 53 < 17–10 < 1 67 16 6710–15 < 1 151 22 15115–20 < 1 162 23 16220–30 < 1 968 19 96830–40 < 1 496 25 49640–60 < 1 349 24 34960–80 0 341 46 34180+ < 1 0 - < 1Total 2 2,533 11 2,535

Mean stand DBH (cm)

Private sector



Go to Part 4

Figure 53 Number of ash trees by age class Table 48 Number of ash trees by age class

0 1,000 2,000 3,000 4,000 5,000 6,000

0–10 years

11–20 years

21–40 years

41–60 years

61–80 years

81–100 years

100+ years


FC

PS




(thousands)Devon Cornwall and the Isles of Scilly0–10 < 1 443 33 44411–20 2 3,621 17 3,62321–40 0 4,049 18 4,04941–60 < 1 2,975 20 2,97561–80 7 475 20 48281–100 < 1 328 36 329100+ 2 100 75 102Total 13 11,990 10 12,003




Go to Part 4

Figure 54 Number of ash trees by mean stand dbh class Table 49 Number of ash trees by mean stand dbh class

0 1,000 2,000 3,000 4,000 5,000 6,000 7,000

0–7 cm

7–10 cm

10–15 cm

15–20 cm

20–30 cm

30–40 cm

40–60 cm

60–80 cm

80+ cm


FC

PS




(thousands)Devon Cornwall and the Isles of Scilly0–7 < 1 93 49 947–10 2 5,057 14 5,05910–15 6 2,182 20 2,18815–20 2 1,054 24 1,05620–30 2 2,686 21 2,68830–40 < 1 610 26 61040–60 < 1 203 26 20360–80 0 104 46 10480+ < 1 0 - < 1Total 13 11,990 10 12,003

Mean stand DBH (cm)

Private sector



Go to Part 4

Figure 55 Ash as a proportion of woodland

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Stocked areaproportion

Standing volumeproportion

Number treesproportion

Ash

Remainingbroadleaves

Conifers



Go to Part 4

Table 50 Stocked area of ash as a proportion of woodland Table 50 (cont’d) Stocked area of ash as a proportion of woodland Table 51 Standing volume of ash as a proportion of woodland Table 51 (cont’d) Standing volume of ash as a proportion of woodland

FC Total

area(000 ha)

area(000 ha)

SE% area(000 ha)

Devon Cornwall and the Isles of Scilly < 0.1 11.0 9 11.0

Aligned area

Stocked area of ash

Private sector

Total of all broadleaves

Total of all species

Percentage of ash in all

broadleaves

Percentage of ash in all species

area(000 ha)

area(000 ha)

(percent) (percent)

Devon Cornwall and the Isles of Scilly 81.7 106.7 13 10

Stocked area of all broadleaves and all species

Aligned area

FC Total

volume(000 m3 obs)

volume(000 m3 obs)

SE%volume

(000 m3 obs)

Devon Cornwall and the Isles of Scilly 2 2,533 11 2,535

Aligned area

Standing volume of ash

Private sector




broadleaves


volume(000 m3 obs)

volume(000 m3 obs)

(percent) (percent)

Devon Cornwall and the Isles of Scilly 17,429 25,666 15 10

Standing volume of all broadleaves and all species

Aligned area



Go to Part 4

Table 52 Number of ash trees as a proportion of woodland Table 52 (cont’d) Number of ash trees as a proportion of woodland

FC Total

number of trees

(thousands)

number of trees

(thousands)SE%

number of trees

(thousands)


Aligned Area

Numbers of trees of ash

Private sector




broadleaves


number of trees

(thousands)

number of trees

(thousands)(percent) (percent)


Number of trees of all broadleaves and all species

Aligned Area



Go to Part 4

Oak Figure 56 Stocked area of oak by age class Table 53 Stocked area of oak by age class

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0

0–10 years

11–20 years

21–40 years

41–60 years

61–80 years

81–100 years

100+ years


FC

PS

FC Totalarea

(000 ha)area

(000 ha)SE% area

(000 ha)Devon Cornwall and the Isles of Scilly0–10 < 0.1 0.4 34 0.411–20 < 0.1 0.6 21 0.621–40 < 0.1 2.0 18 2.041–60 < 0.1 2.1 18 2.161–80 < 0.1 2.6 16 2.681–100 < 0.1 5.3 15 5.4100+ 0.1 2.6 18 2.7Total 0.3 15.6 7 15.9




Go to Part 4

Figure 57 Stocked area of oak by mean stand dbh class Table 54 Stocked area of oak by mean stand dbh class

0.0 1.0 2.0 3.0 4.0 5.0 6.0

0–7 cm

7–10 cm

10–15 cm

15–20 cm

20–30 cm

30–40 cm

40–60 cm

60–80 cm

80+ cm


FC

PS

FC Totalarea

(000 ha)area

(000 ha)SE% area

(000 ha)Devon Cornwall and the Isles of Scilly0–7 < 0.1 0.6 23 0.77–10 < 0.1 0.4 28 0.410–15 < 0.1 0.7 27 0.815–20 < 0.1 1.1 23 1.220–30 < 0.1 2.7 18 2.730–40 < 0.1 2.2 20 2.340–60 < 0.1 4.6 15 4.760–80 < 0.1 2.2 20 2.280+ 0.0 1.0 31 1.0Total 0.3 15.6 7 15.9

Mean stand DBH (cm)

Private sector



Go to Part 4

Figure 58 Standing volume of oak by age class Table 55 Standing volume of oak by age class

0 500 1,000 1,500 2,000 2,500 3,000

0–10 years

11–20 years

21–40 years

41–60 years

61–80 years

81–100 years

100+ years


FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly0–10 0 < 1 86 < 111–20 < 1 41 31 4121–40 1 259 24 26041–60 2 428 20 43061–80 3 1,397 21 1,40081–100 12 2,302 16 2,315100+ 27 2,125 25 2,152Total 46 6,553 11 6,599




Go to Part 4

Figure 59 Standing volume of oak by mean stand dbh class Table 56 Standing volume of oak by mean stand dbh class

0 500 1,000 1,500 2,000 2,500 3,000

0–7 cm

7–10 cm

10–15 cm

15–20 cm

20–30 cm

30–40 cm

40–60 cm

60–80 cm

80+ cm


FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly0–7 < 1 3 33 47–10 < 1 20 33 2110–15 2 76 26 7815–20 5 142 22 14720–30 9 575 19 58430–40 15 734 22 75040–60 13 2,270 17 2,28260–80 < 1 1,789 26 1,79080+ 0 943 35 943Total 46 6,553 11 6,599

Mean stand DBH (cm)

Private sector



Go to Part 4

Figure 60 Number of oak trees by age class Table 57 Number of oak trees by age class

0 500 1,000 1,500 2,000 2,500 3,000 3,500

0–10 years

11–20 years

21–40 years

41–60 years

61–80 years

81–100 years

100+ years


FC

PS




(thousands)Devon Cornwall and the Isles of Scilly0–10 0 31 86 3111–20 11 1,323 20 1,33421–40 106 2,497 21 2,60341–60 35 1,204 17 1,23961–80 18 1,134 17 1,15281–100 37 1,481 16 1,518100+ 36 733 20 769Total 241 8,403 9 8,645




Go to Part 4

Figure 61 Number of oak trees by mean stand dbh class Table 58 Number of oak trees by mean stand dbh class

0 200 400 600 800 1,000 1,200 1,400 1,600 1,800 2,000

0–7 cm

7–10 cm

10–15 cm

15–20 cm

20–30 cm

30–40 cm

40–60 cm

60–80 cm

80+ cm


FC

PS




(thousands)Devon Cornwall and the Isles of Scilly0–7 23 608 34 6317–10 85 1,123 29 1,20810–15 42 1,477 27 1,51915–20 33 987 23 1,02020–30 24 1,497 17 1,52130–40 23 885 20 90940–60 10 1,266 16 1,27660–80 < 1 457 24 45780+ 0 103 32 103Total 241 8,403 9 8,645

Mean stand DBH (cm)

Private sector



Go to Part 4

Figure 62 Oak as a proportion of woodland

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%




Oak


Conifers



Go to Part 4

Table 59 Stocked area of oak as a proportion of woodland Table 59 (cont’d) Stocked area of oak as a proportion of woodland Table 60 Standing volume of oak as a proportion of woodland Table 60 (cont’d) Standing volume of oak as a proportion of woodland

FC Total

area(000 ha)

area(000 ha)

SE% area(000 ha)

Devon Cornwall and the Isles of Scilly 0.3 15.6 7 15.9

Aligned area

Stocked area of oak

Private sector



Percentage of oak in all

broadleaves

Percentage of oak in all species

area(000 ha)

area(000 ha)

(percent) (percent)


Aligned area


FC Total

volume(000 m3 obs)

volume(000 m3 obs)

SE%volume

(000 m3 obs)


Aligned area

Standing volume of oak

Private sector




broadleaves


volume(000 m3 obs)

volume(000 m3 obs)

(percent) (percent)


Aligned area




Go to Part 4

Table 61 Number of oak trees as a proportion of woodland Table 61 (cont’d) Number of oak trees as a proportion of woodland

FC Total

number of trees

(thousands)

number of trees

(thousands)SE%

number of trees

(thousands)


Aligned Area

Numbers of trees of oak

Private sector




broadleaves


number of trees

(thousands)

number of trees



Aligned Area




Go to Part 4

Sweet chestnut Figure 63 Stocked area of sweet chestnut by age class Table 62 Stocked area of sweet chestnut by age class

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

0–10 years

11–20 years

21–40 years

41–60 years

61–80 years

81–100 years

100+ years


FC

PS

FC Totalarea

(000 ha)area

(000 ha)SE% area

(000 ha)Devon Cornwall and the Isles of Scilly0–10 0.0 < 0.1 56 < 0.111–20 < 0.1 0.1 30 0.121–40 < 0.1 1.1 32 1.141–60 < 0.1 0.6 45 0.661–80 < 0.1 0.4 63 0.481–100 < 0.1 0.3 59 0.3100+ < 0.1 < 0.1 62 < 0.1Total < 0.1 2.6 21 2.7




Go to Part 4

Figure 64 Stocked area of sweet chestnut by mean stand dbh class Table 63 Stocked area of sweet chestnut by mean stand dbh class

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

0–7 cm

7–10 cm

10–15 cm

15–20 cm

20–30 cm

30–40 cm

40–60 cm

60–80 cm

80+ cm


FC

PS

FC Totalarea

(000 ha)area

(000 ha)SE% area

(000 ha)Devon Cornwall and the Isles of Scilly0–7 < 0.1 0.1 31 0.17–10 < 0.1 < 0.1 42 < 0.110–15 < 0.1 0.3 57 0.315–20 < 0.1 0.2 44 0.220–30 < 0.1 0.3 37 0.330–40 < 0.1 0.6 45 0.640–60 < 0.1 0.4 50 0.460–80 < 0.1 0.3 91 0.380+ 0.0 0.4 61 0.4Total < 0.1 2.6 21 2.7

Mean stand DBH (cm)

Private sector



Go to Part 4

Figure 65 Standing volume of sweet chestnut by age class Table 64 Standing volume of sweet chestnut by age class

0 100 200 300 400 500 600 700

0–10 years

11–20 years

21–40 years

41–60 years

61–80 years

81–100 years

100+ years


FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly0–10 0 0 - 011–20 < 1 8 52 821–40 < 1 292 51 29241–60 < 1 418 46 41861–80 1 195 59 19681–100 1 172 53 173100+ < 1 32 69 33Total 4 1,116 26 1,120




Go to Part 4

Figure 66 Standing volume of sweet chestnut by mean stand dbh class Table 65 Standing volume of sweet chestnut by mean stand dbh class

0 100 200 300 400 500 600

0–7 cm

7–10 cm

10–15 cm

15–20 cm

20–30 cm

30–40 cm

40–60 cm

60–80 cm

80+ cm


FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly0–7 < 1 2 43 27–10 < 1 3 44 410–15 < 1 19 64 2015–20 < 1 24 28 2520–30 2 85 36 8630–40 < 1 307 54 30840–60 1 181 48 18260–80 < 1 123 88 12380+ 0 372 49 372Total 4 1,116 26 1,120

Mean stand DBH (cm)

Private sector



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Figure 67 Number of sweet chestnut trees by age class Table 66 Number of sweet chestnut trees by age class

0 200 400 600 800 1,000 1,200 1,400

0–10 years

11–20 years

21–40 years

41–60 years

61–80 years

81–100 years

100+ years


FC

PS




(thousands)Devon Cornwall and the Isles of Scilly0–10 0 0 - 011–20 < 1 260 29 26021–40 4 1,037 28 1,04141–60 8 386 51 39561–80 10 136 43 14681–100 1 88 55 89100+ < 1 19 66 19Total 25 1,926 20 1,951




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Figure 68 Number of sweet chestnut trees by mean stand dbh class Table 67 Number of sweet chestnut trees by mean stand dbh class

0 100 200 300 400 500 600 700

0–7 cm

7–10 cm

10–15 cm

15–20 cm

20–30 cm

30–40 cm

40–60 cm

60–80 cm

80+ cm


FC

PS




(thousands)Devon Cornwall and the Isles of Scilly0–7 3 327 43 3307–10 7 164 45 17110–15 7 385 56 39215–20 < 1 166 29 16620–30 5 265 36 27030–40 < 1 391 54 39240–60 1 93 42 9460–80 < 1 51 88 5180+ 0 84 52 84Total 25 1,926 20 1,951

Mean stand DBH (cm)

Private sector



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Figure 69 Sweet chestnut as a proportion of woodland

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%




Sweet chestnut


Conifers



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Table 68 Stocked area of sweet chestnut as a proportion of woodland Table 68 (cont’d) Stocked area of sweet chestnut as a proportion of woodland Table 69 Standing volume of sweet chestnut as a proportion of woodland Table 69 (cont’d) Standing volume of sweet chestnut as a proportion of woodland

FC Total

area(000 ha)

area(000 ha)

SE% area(000 ha)

Devon Cornwall and the Isles of Scilly < 0.1 2.6 21 2.7

Aligned area

Stocked area of sweet chestnut

Private sector



Percentage of sweet

chestnut in all broadleaves

Percentage of sweet

chestnut in all species

area(000 ha)

area(000 ha)

(percent) (percent)


Aligned area


FC Total

volume(000 m3 obs)

volume(000 m3 obs)

SE%volume

(000 m3 obs)


Aligned area

Standing volume of sweet chestnut

Private sector



Percentage of sweet


Percentage of sweet


volume(000 m3 obs)

volume(000 m3 obs)

(percent) (percent)


Aligned area




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Table 70 Number of sweet chestnut trees as a proportion of woodland Table 70 (cont’d) Number of sweet chestnut trees as a proportion of woodland

FC Total

number of trees

(thousands)

number of trees

(thousands)SE%

number of trees

(thousands)


Aligned Area

Numbers of trees of sweet chestnut

Private sector



Percentage of sweet


Percentage of sweet


number of trees

(thousands)

number of trees



Aligned Area




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Larch Figure 70 Stocked area of larch by age class Table 71 Stocked area of larch by age class

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

0–10 years

11–20 years

21–40 years

41–60 years

61–80 years

81–100 years

100+ years


FC

PS

FC Totalarea

(000 ha)area

(000 ha)SE% area

(000 ha)Devon Cornwall and the Isles of Scilly0–10 0.1 < 0.1 73 0.111–20 0.1 < 0.1 49 0.221–40 0.1 0.8 36 0.941–60 0.1 1.3 28 1.461–80 < 0.1 0.5 42 0.581–100 < 0.1 < 0.1 92 < 0.1100+ < 0.1 0.0 - < 0.1Total 0.5 2.7 18 3.3




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Figure 71 Stocked area of larch by mean stand dbh class Table 72 Stocked area of larch by mean stand dbh class

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

0–7 cm

7–10 cm

10–15 cm

15–20 cm

20–30 cm

30–40 cm

40–60 cm

60–80 cm

80+ cm


FC

PS

FC Totalarea

(000 ha)area

(000 ha)SE% area

(000 ha)Devon Cornwall and the Isles of Scilly0–7 < 0.1 < 0.1 87 < 0.17–10 0.1 < 0.1 62 0.110–15 0.1 < 0.1 53 0.215–20 < 0.1 0.1 46 0.220–30 < 0.1 1.0 31 1.030–40 0.1 1.0 34 1.140–60 < 0.1 0.4 40 0.460–80 < 0.1 < 0.1 92 < 0.180+ 0.0 0.0 - 0.0Total 0.5 2.7 18 3.3

Mean stand DBH (cm)

Private sector



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Figure 72 Standing volume of larch by age class Table 73 Standing volume of larch by age class

0 100 200 300 400 500 600 700

0–10 years

11–20 years

21–40 years

41–60 years

61–80 years

81–100 years

100+ years


FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly0–10 1 < 1 104 111–20 9 2 51 1121–40 22 273 43 29541–60 25 486 27 51161–80 9 204 40 21281–100 2 40 92 42100+ < 1 0 - < 1Total 68 1,005 18 1,073




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Figure 73 Standing volume of larch by mean stand dbh class Table 74 Standing volume of larch by mean stand dbh class

0 100 200 300 400 500 600

0–7 cm

7–10 cm

10–15 cm

15–20 cm

20–30 cm

30–40 cm

40–60 cm

60–80 cm

80+ cm


FC

PS

FC Totalvolume

(000 m3 obs)volume

(000 m3 obs)SE%

volume(000 m3 obs)

Devon Cornwall and the Isles of Scilly0–7 < 1 0 - < 17–10 3 < 1 52 310–15 12 11 57 2215–20 3 54 52 5720–30 11 421 35 43130–40 25 317 32 34240–60 15 162 39 17760–80 < 1 40 92 4080+ 0 0 - 0Total 68 1,005 18 1,073

Mean stand DBH (cm)

Private sector



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Figure 74 Number of larch trees by age class Table 75 Number of larch trees by age class




(thousands)Devon Cornwall and the Isles of Scilly0–10 191 0 - 19111–20 362 260 29 62321–40 135 1,037 28 1,17241–60 25 386 51 41161–80 11 136 43 14881–100 < 1 88 55 89100+ < 1 19 66 19Total 726 1,751 20 2,478


0 200 400 600 800 1,000 1,200 1,400

0–10 years

11–20 years

21–40 years

41–60 years

61–80 years

81–100 years

100+ years


FC

PS



Go to Part 4

Figure 75 Number of larch trees by mean stand dbh class Table 76 Number of larch trees by mean stand dbh class




(thousands)Devon Cornwall and the Isles of Scilly0–7 53 0 - 537–10 287 53 58 34010–15 301 157 51 45915–20 21 234 48 25520–30 28 887 34 91530–40 27 316 31 34340–60 9 95 38 10460–80 < 1 9 92 980+ 0 0 - 0Total 726 1,751 20 2,478

Mean stand DBH (cm)

Private sector

0 200 400 600 800 1,000 1,200 1,400

0–7 cm

7–10 cm

10–15 cm

15–20 cm

20–30 cm

30–40 cm

40–60 cm

60–80 cm

80+ cm


FC

PS



Go to Part 4

Figure 76 Larch as a proportion of woodland

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%




Larch

Remainingconifers

Broadleaves



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Table 77 Stocked area of larch as a proportion of woodland Table 77 (cont’d) Stocked area of larch as a proportion of woodland Table 78 Standing volume of larch as a proportion of woodland Table 78 (cont’d) Standing volume of larch as a proportion of woodland

FC Total

area(000 ha)

area(000 ha)

SE% area(000 ha)

Devon Cornwall and the Isles of Scilly 0.5 2.7 18 3.3

Aligned area

Stocked area of larch

Private sector

Total of all conifers


Percentage of larch in all conifers

Percentage of larch in all species

area(000 ha)

area(000 ha)

(percent) (percent)


Aligned area

Stocked area of all conifers and all species

FC Total

volume(000 m3 obs)

volume(000 m3 obs)

SE%volume

(000 m3 obs)


Aligned area

Standing volume of larch

Private sector





volume(000 m3 obs)

volume(000 m3 obs)

(percent) (percent)


Aligned area

Standing volume of all conifers and all species



Go to Part 4

Table 79 Number of larch trees as a proportion of woodland Table 79 (cont’d) Number of larch trees as a proportion of woodland

FC Total

number of trees

(thousands)

number of trees

(thousands)SE%

number of trees

(thousands)


Aligned Area

Numbers of trees of larch

Private sector





number of trees

(thousands)

number of trees



Aligned Area

Number of trees of all conifers and all species

NFI summary report


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Appendix A – Aligned area nomenclature Table 80 Aligned area long and short names

Cumbria and Lancashire Cumbria and Lancashire CLA Devon Cornwall and the Isles of Scilly Devon and Cornwall DCS East Anglia East Anglia EAN East Midlands East Midlands EMD Greater Manchester Merseyside and Cheshire Gtr Mancs Mersey and Ches GMC Hertfordshire and North London Herts and North London HNL Kent South London and East Sussex Kent S London and E Sussex KSL Lincolnshire and Northamptonshire Lincs and Northants LNA North East North East NEA Solent and South Downs Solent and South Downs SSD Thames Thames THS Wessex Wessex WSX West Midlands West Midlands WMD Yorkshire Yorkshire YOR

Long name Short name Abbreviation

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Glossary Actual production Timber reported as having been felled and removed from the forest. The

Forestry Commission keeps records of actual production for its estate, while estimates for the Private sector come from surveys of harvesting companies and timber processors. These figures are available from Forestry Commission Statistics.

Aerial photograph Photograph of the ground taken from an elevated/direct–down position, with a camera that is not supported by a ground-based structure.

Age class A grouping of trees into specific age ranges for classification purposes. Area (forest/woodland)

Forest and woodland area can be defined in net or gross terms. Net area is the land actually covered by trees (in the National Forest Inventory that is to the drip line of the canopy). Gross area includes both the area covered by trees and the open spaces (<0.5 hectare) within (e.g. rides, glades, ponds).

Availability A term to describe what timber could potentially be available for harvesting within a forest area.

Biological potential A term applied to forecast scenarios with the objective of maximising timber production. It typically involves felling stands in the year of maximum MAI and management table thinning. It may not take account of factors that constrain thinning and felling (e.g. wind risk or pest attack). The forecast results set out in this report involve constraints on thinning and times of felling to take account of wind risk.

Broadleaves Trees and shrubs that belong to the angiosperm division of the plant kingdom (as distinct from the gymnosperm division that includes conifers). Most in the UK have laminar leaves and are deciduous. Sometimes referred to as ‘hardwoods’.

Canopy cover Area covered by a mass of foliage and branches formed collectively by the crowns of trees.

Clearfell area Area here all the trees have been felled at once. In non-clearfell areas, only some of the trees are felled at any one time.

Clearfelling Cutting down of an area of woodland (if it is within a larger area of woodland it is typically a felling greater than 0.25 hectare). Sometimes a scatter or small clumps of trees may be left standing within the felled area.

Conifers Trees and shrubs that belong to the gymnosperm division of the plant kingdom (as distinct from the angiosperm division that includes broadleaves). Conifers mostly have needles or scale-like leaves and are usually evergreen. Sometimes referred to as ‘softwoods’.

Cumulative volume production

The total volume of timber that is forecast to be produced over the entire forecast period, including any overdue timber.

DAMS (Detailed Aspect Methodology Score)

A measure of exposure at a particular location. Can be used as a proxy indicator of the risk of catastrophic wind damage to a stand of trees. May be used to influence decisions on thinning and timing of clearfelling where wind is a risk factor.

DBH (diameter at breast height)

The diameter on the stem of a tree at ‘breast height’, defined as 1.3 m from ground level.

Dothistroma needle blight

A disease of conifers (especially pine) which causes defoliation, losses in yield and, in severe cases, tree death. Also known as red band needle blight.

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Felling plan A spatial and temporal plan of harvesting activities within a forest or woodland.

Forest (or woodland) Land predominately covered in trees (defined as land under stands of trees with a canopy cover of at least 20%, or the ability to achieve this, and with a minimum area of 0.5 hectare and minimum width of 20 m), whether in large tracts (generally called forests) or smaller areas known by a variety of terms (including woods, copses, spinneys or shelterbelts).

Forest management plan

A holistic spatial and temporal plan stating the objectives of management together with details of forestry proposals over a period of five years and outlining intentions over a minimum total of 10 years. Such plans allow managers to communicate proposals and demonstrate sustainable forest management. They can be used to authorise thinning, felling and other management operations.

Forest Service An agency within the Department of Agriculture and Rural Development (DARD) in Northern Ireland responsible for the regulation of forestry and the management of state forests in Northern Ireland.

Forestry Commission The government department responsible for regulating forestry, implementing forestry policy and managing state forests in England and Scotland. Forestry policy is devolved, with the exception of common issues addressed on a GB or UK basis, such as international forestry, plant health and forestry standards.

Forestry Commission (FC) estate

Forests, woodlands, open land and other property managed by the Forestry Commission.

Great Britain (GB) England, Scotland and Wales. Hardwood The wood of broadleaved trees or the broadleaves themselves. High forest Woodland which is not managed as coppice or pollards and which may or

may not be managed for timber. Increment The increase in volume of a tree or a stand over a year or annualised

over a specified period measured either in m3 per year or in m3 per hectare per year. See also Mean Annual Increment (MAI).

Interpreted forest type (IFT)

Interpreted forest type is a classification of woodland into woodland types as identified from aerial photography and satellite imagery.

Interpreted open area (IOA)

Interpreted open are is a classification of open spaces within woodlands as identified from aerial photography and satellite imagery.

Like-for-like (restocking)

The restocking of areas of felled trees with trees of the same species and yield class.

Maximising productivity

The management of woodland to maximise volume production by thinning at the MTI.

Mean annual increment (MAI)

The average annual rate of volume production from year of planting to a given year, expressed in m3 obs per hectare per year. In even-aged stands it is calculated by dividing cumulative volume production by age.

MTT (management table thinning)

A sequence of thinnings prescribed by Forestry Commission yield tables over the life of a forest stand. Management table thinning refers to the pattern of thinning recommended in these yield tables. In standard yield tables the thinnings are set to an intensity which aims to maximise diameter increment whilst also maintaining maximum cumulative volume production

MTI (marginal thinning intensity)

The maximum sustainable intensity of thinning defined as 70% of yield class per hectare per year (m3 obs/ha/year).

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Maximum MAI (maximum mean annual increment) (MMAI)

The age at which a stand reaches the maximum average rate of volume increment which it can achieve. Felling the stand at this age will ensure that the stand reaches its highest average production per annum for its lifespan, thus optimising the stand in terms of volume production over the long term.

Mean annual increment (MAI)

The average rate of volume production up to a given year, expressed in m3 per hectare per year. In even-aged stands it is calculated by dividing cumulative volume production by age.

Mensuration The study of the measurement of lengths, areas, volumes and related quantities. Forest mensuration is concerned with the measurement of trees, woodlands and forests, including standing and felled timber.

National Forest Inventory (NFI)

An inventory run by the Forestry Commission, set up in 2009, to provide a record of key information about GB forests and woodlands.

National Inventory of Woodland and Trees (NIWT)

An inventory run by the Forestry Commission, set up in 1995 and completed in 2002, to provide a record of key information about GB forests and woodlands.

Natural Resources Wales (NRW)

Natural Resources Wales is the largest Welsh Government Sponsored Body - employing 1,900 staff across Wales with a budget of £180 million. NRW was formed in April 2013, largely taking over the functions of the Countryside Council for Wales, Forestry Commission Wales and the Environment Agency in Wales, as well as certain Welsh Government functions.

Overbark Used as a qualification when the diameter or volume of wood includes the bark.

Overbark standing (OBS)

Timber is defined in this report as the volume of stemwood to 7 cm top diameter in m3 overbark standing (obs), including stump (above ground) and usable branchwood (of minimum 3 m in length and 7 cm top diameter).

Overdue Timber contained in stands that are beyond the felling age prescribed by the harvesting scenario at the start of the forecast.

Phytophthora Fungus-like pathogens that can cause extensive damage and mortality to trees and other plants.

Planned production The volumes and assortments published in the removals forecast, reflecting the cumulative impact of managing the FC estate (as of 31 March 2012) in accordance with approved forest design and thinning plans.

Potential production A forecast which will not necessarily transpire. As the private sector estate forecast makes assumptions about future levels of harvest, and the assumptions may not transpire, this forecast is one of potential production.

Private sector estate Forests and woodlands in the UK not managed by the Forestry Commission, Natural Resources Wales or Forest Service. In the context of the National Forest Inventory, ‘Private sector’ is used for convenience although it includes land owned or managed by bodies such as local authorities and charities.

Production forecast A forecast of softwood volume production based on a firm plan of harvesting.

Restocking plan A spatial and temporal plan describing how felled areas are to be replanted or regenerated.

Satellite imagery Imagery of the earth taken from space from a satellite. Softwood The wood of coniferous trees or the conifers themselves.

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Stand A distinct area of woodland, generally composed of a uniform group of trees in terms of species composition and spatial distribution, and age and size class distribution.

Standard error (SE) The measure of the margin of error associated with an estimate as a result of sampling from a population with statistical variability. Larger standard errors indicate less precision in the estimate. Standard errors in this report are quoted in relative terms (i.e. as percentages of the value of the estimate).

Standing volume The live stemwood and usable branchwood of trees (up to 7 cm top diameter). It excludes roots, below ground stump material, small branches, foliage and deadwood. For Private sector woodland only, it also excludes trees in woodlands of less than 0.5 hectare. Usually expressed as m3 overbark standing (m3 obs).

Stemwood The woody material forming the above ground main growing shoot(s) of a tree or stand of trees. The stem includes all woody volume above ground with a diameter greater than 7 cm overbark. Stemwood includes wood in major branches where there is at least 3 m of straight length to 7 cm top diameter.

Stocked area The area stocked with living trees. The stocked areas in this report are quoted in gross terms for the FC/NRW estate and in net terms for the private sector estate (see the definition of area abve).

Sub-compartment database (SCDB)

A database owned and maintained by the Forestry Commission that holds an inventory of all stands of trees managed by the Forestry Commission (including that formerly managed by Forestry Commission Wales which is now managed by Natural Resources Wales).

Sustainable forest management

The stewardship and use of forests and forest lands in a way, and at a rate, that maintains their biodiversity, productivity, regeneration capacity and vitality and their potential to fulfil, now and in the future, relevant ecological, economic and social functions at local, national and global levels, and that does not cause damage to other ecosystems.

Terminal height The top height of a stand at which wind damage is expected to reach a level necessitating clearfelling.

Thinning The periodic harvesting of trees in a woodland, involving the removal of some trees for commercial use and the retention of others for future production or long-term retention.

Thinning plan A spatial and temporal plan of harvesting activities within a forest or woodland.

Top diameter The diameter of the smaller (top) end of a length of stemwood, branchwood or log, often used to define different categories of wood products (e.g. sawlogs, roundwood, pulp) and merchantable timber.

Top height The mean total height of the 100 largest dbh trees per hectare. UK (United Kingdom) Great Britain and Northern Ireland. Windthrow Uprooting of trees by the wind. Windthrow can be endemic – i.e. that

caused by frequently recurring peak winds – or catastrophic – an infrequent occurrence associated with exceptionally strong winds where large areas/numbers of trees are blown down.

Woodland see Forest. Yield class (YC) An index used in the UK of the potential productivity of even-aged stands

of trees based on maximum MAI. It reflects the potential productivity of the site for the tree species growing on it.

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Aligned area reports in this series This report is one in a series of reports describing the current stocks in woodland, the economic viability data, timber availability forecasts and estimates of the current stocks within woodland of four species currently at risk from pests and diseases. Reports are available for:

• England • Cumbria and Lancashire • Devon Cornwall and the Isles of Scilly • East Anglia • East Midlands • Greater Manchester Merseyside and Cheshire • Hertfordshire and North London • Kent South London and East Sussex • Lincolnshire and Northamptonshire • North East • Solent and South Downs • Thames • Wessex • West Midlands • Yorkshire

The methodology, data sources and assumptions are described in the England report. It is important that the estimates presented in this report are interpreted in the light of the information provided in the England report.

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NFI national reports and papers This series of reports is part of the wider suite of publications from the National Forest Inventory (NFI). NFI reports that contain information relating to this series of reports are:

• NFI woodland area statistics, Great Britain, England, Scotland, Wales (2011) • Standing timber volume for coniferous trees in Britain (2012) • 25-year forecast of softwood availability (2012) • 25-year forecast of standing coniferous volume and increment (2012) • Preliminary estimates of broadleaved species in British woodlands, with special

focus on ash (2012) • Biomass in live woodland trees in Britain (2014) • Carbon in live woodland trees in Britain (2014) • 50-year forecast of softwood availability (2014) • 50-year forecast of hardwood availability (2014) • 25-year forecast of softwood availability (2016)

Each theme has a series of associated reports, papers and data, tailored for different audiences and uses. This report is a supporting document for the Official Statistics report National Forest Inventory statistics for England and aligned areas (2017) and provides more detailed results for Devon Cornwall and the Isles of Scilly. National Forest Inventory statistician: Alan Brewer

Lead authors L. Halsall, E. Whitton, S. Cameron

Reviewed by: B. Ditchburn, D. Ross, D. Cross, members of the FC England Aligned Areas steering group

national forest inventory statistics for devon, cornwall and the … · 2018. 5. 22. · devon,...

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