Ministry of ForestsMinistry of Forests

Resources Inventory BranchResources Inventory BranchGrowth and Yield SectionGrowth and Yield Section

Provincial PSP Training - EstablishmentProvincial PSP Training - Establishment

June 2001June 2001

AgendaAgenda Day 1 Thursday

Office Establishment proceduresElectronic data collection

Using GyHost 2001

Day 2 FridayField Establishment procedures

Using GyHand 2001

OverviewOverview Purpose

– Monitor»Mortality»Rate of growth»Change in structure

– Calibrate and validate models

Location– Remeasured every ten years– Accurate access notes (sketch map & description

of tie point)– Include map and air photo reference

Tie Point MarkerTie Point MarkerTwo plaques on tie tree that is flagged and painted

CENTRE FOR GROWTHSample No.____ Plot No.____

TIE POINT FOR GROWTH

Sample No._12_ Plot No. _1_Bearing _____ 42 (azimuth)_

Distance ___82 m_____R. No. _46_ Comp. No. _25_Date ___Sept. 10, 2001____

NATURAL ! MANAGED ! INST. NO.___

B.C.F.S.FOREST INVENTORY BRANCH

CENTRE FOR GROWTHSA. TYPE ___ INST. NO.___SAMPLE NO. __ PLOT NO.__

--------------------------------------------

TIE POINT FOR GROWTHSA. TYPE _G_ INST. NO.____SAMPLE NO.12_PLOT NO. _1_

BEARING ______ 42(azimuth)_____DISTANCE ____82 m____

-------------------------------------------REG. NO. __46_COMP. NO. _25_

DATE ____Sept 10, 2001____B.C.F.S.

FOREST INVENTORY BRANCH

Minimum DistancesMinimum Distances

TP

PC

Harvested

50 meters to disturbance or road

stand height

Lake

Tie PointTie Point

Access Notes should describe tie tree and tie lineAccess Notes should describe tie tree and tie lineSelect distinctive tie pointSelect distinctive tie point

The tie line must be painted and flagged with The tie line must be painted and flagged with annotated flaggingannotated flagging

TP

• predetermined horizontal distance• plot centre may be moved• predetermined bearing

Plot Centre MarkerPlot Centre MarkerTwo plaques on opposite sides of tree aligned with

the tie line.

CENTRE FOR GROWTHSample No._12_ Plot No._1_

TIE POINT FOR GROWTH

Sample No.____ Plot No. ___Bearing _________________Distance _________________

R. No. __46_ Comp. No. _25_Date ___Sept 10, 2001_____

NATURAL ! MANAGED ! INST. NO.___

B.C.F.S.FOREST INVENTORY BRANCH

CENTRE FOR GROWTHSA. TYPE __G_ INST. NO.___

SAMPLE NO. _12_ PLOT NO._1_--------------------------------------------

TIE POINT FOR GROWTHSA. TYPE ___ INST. NO.____SAMPLE NO.___PLOT NO. ___BEARING _________________DISTANCE ________________

-------------------------------------------REG. NO. __46_COMP. NO. _25_

DATE ____Sept 10, 2001____B.C.F.S.

FOREST INVENTORY BRANCH

Plot Centre & TP Plot Centre & TP MarkerMarker

A plot centre tree may be a tie tree to another A plot centre tree may be a tie tree to another sample in a stripsample in a strip

CENTRE FOR GROWTHSample No._12_ Plot No._1_

TIE POINT FOR GROWTH

Sample No._13_ Plot No. 1__Bearing ____42 (azimuth)_

Distance _____82 m____________

R. No. __46_ Comp. No. _25_Date ___Sept 10, 2001_____

NATURAL ! MANAGED ! INST. NO.___

B.C.F.S.FOREST INVENTORY BRANCH

CENTRE FOR GROWTHSA. TYPE __G_ INST. NO.___

SAMPLE NO. _12_ PLOT NO._1_--------------------------------------------

TIE POINT FOR GROWTHSA. TYPE _G_ INST. NO.____SAMPLE NO._13PLOT NO. _1_

BEARING ____42_(azimuth)________DISTANCE ____82 m________

-------------------------------------------REG. NO. __46_COMP. NO. _25_

DATE ____Sept 10, 2001____B.C.F.S.

FOREST INVENTORY BRANCH

The PlotThe Plot Minimum• 90 living trees

Sizes

0.04 ha 11.28 m0.05 ha 12.62 m0.06 ha 13.82 m0.07 ha 14.93 m0.08 ha 15.96 m0.09 ha 16.93 m 0.1 ha 17.84 m

• commercial &• non-commercial• >4.0 cm

Exception

A 0.08 ha PlotA 0.08 ha PlotDivide the plot into eight 0.01 ha sectors (45

degrees)These will serve as tagging sectors and 0.01 ha site

sectorsSector 1 is clockwise from North bearing

N

1

The PlotThe Plot

N

1

A 0.08 ha Plot (8 A 0.08 ha Plot (8 sectors)sectors)

N

7

6

5 4

3

2

18

Centre sectorCentre sector (0.01 ha) (0.01 ha)

N

7

6

5 4

3

2

18

Cs

The PlotThe PlotStart tagging from plot centre to perimeter

in 1st sector clockwise from North

N

7

6

5 4

3

2

18

The PlotThe PlotTagging pattern flows from sector to sector

N

7

6

5 4

3

2

18

The PlotThe PlotTags face plot centre for odd sectors and plot

perimeter for even sectors

N

7

6

5 4

3

2

18

Tree MeasurementsTree Measurements Species (commercial and non-commercial) DBH (for plot trees)

– >4.0 cm at 1.3 meters (Up hill side)

Classification– Tree Class (pathological indicators)

» 1, 2, 3, 4, 5 or 6– Crown class (position in the crown relative to other trees)

» 1, 2, 3, 4, 5 and ( 6 )– Live crown length (contiguous live crown)

» 10% to 100% (in 10% increments)

Sectors (tagging and site) Stumps ‘O’ or ‘N’ Damage Agents and Severity (tree and

sample)

Suitable for height?

Sample SetupSample Setup Centre stake flagged and cairn of rocks

for protection Triangulate (bearing and horizontal

distance from plot centre) centre stake to three tagged healthy plot reference trees near plot centre

Confirm slope corrected plot perimeter String perimeter and sectors Ensure nails on plaques and tree tags

will allow for growth Record plot attributes (crown closure,

slope, aspect, elevation, slope position, damage to reflect tree damage)

What is a Dead Tree?What is a Dead Tree?

Alive? Any tree with one

or more green needles

Bark may or may not appear to be alive

Note: Use tree comments for questionable

trees!

Dead TreesDead Trees

Standing trees >10.0 cm dbh and >1.3m in height– Tag, measure DBH and classify dead tree attributes

Dead Tree AttributesDead Tree Attributes Tree number and tree number certainty Species & species certainty Vertical position (standing or down) If standing: broken top and height to break If down: supported or on the ground Wildlife tree appearance (1 - 7) Appendix 22

Cross Section of 1/2 Cross Section of 1/2 WrapWrap

nail and tag

second nail

Forks and Non-forksForks and Non-forksBelow dbh

Cross Section

showing pith at germination point

Tagging Forked TreesTagging Forked Trees

D.B.H.A

B C

A = 2.4 cm If ‘B” in subplot

B = 24.8 cm Yes

C = 6.5 cm Yes

The Sub PlotThe Sub Plot

NMinimum Size

0.002 ha(2.52 m radius)

7

6

5 4

3

2

18

Maximum Size

plot size.

Minimum 20 commercial stems

0.3 m in ht. to 3.9 cm DBH

Target is 20 commercial trees– 0.3 m in height to 3.9 cm in DBH

For trees 2.0 cm to 3.9 cm in DBH– Tag and classify as in plot– Insert near tree number as out of

sequence

For trees under 2.0 cm in DBH– Do a dot count by species and “class”

0.3 to 1.3 m in height - [D Class = 0]0.1 to 1.9 cm in DBH - [D Class = 1]

The Sub-PlotThe Sub-Plot

For first two majors–Top height tree (software selected in centre

sector “C”)

–Site trees (software selected in site sectors)»4 - 10 (proportionate to plot size / 0.01 ha) »Must be “suitable”»no substitution!

–Fifteen others (down to 2.0cm dbh)

Other majors, minor and scattered– Up to fifteen if suitable and available

Mark direction for height with painted dot

Height Sample TreesHeight Sample Trees

Top Height TreeTop Height Tree

Largest dbh tree in a 0.01ha plot (Centre sector “C”)

Measurement specific

Suitability– Crown class 1 or 2 (not suppressed or residual)– No major defects (healthy)– Within 5% of original height (no major top

damage)

No substitution!

Site TreesSite Trees Largest dbh tree per 0.01ha plot

(software will select from site sectors)– Collect for the first two leading major species

Measurement specific

Suitability– Crown class 1 or 2 (not suppressed or residual)– No major defects (healthy)– Within 5% of original height (no major top damage)

No substitution!

Age Sample TreesAge Sample TreesBreast Height AgeBreast Height Age

‘Top height tree’

Site Trees – In complex stands - two more from younger trees– Confirm veteran age – Save cores in labelled straw (sample + tree number)– Want half of the cores to have pith– Measure 5, 10, 20 radial increment– Assess for suppression– Estimate age for rotten cores– Count/confirm ages in office with magnification

StandardsStandards Live TreesLive Trees

Species (genus) [2] no error Missed Plot Trees [2] no error within plot

+ 0.5% of plot/sub-plot radius

Breast Height [1] + 5.0cm of true

height

DBH [2] + 0.1cm or 1%

Height [2] + 20 cm or 2%

Age [1] + 2 years or 2%

StandardsStandardsDead TreesDead Trees

Species (genus) [1/2] no error* Missed Trees [1/2] no error within plot

+ 0.5% of plot radius

Breast Height [1/2] + 5.0cm of true height

DBH [1/2] + 0.2cm or 2%

Wildlife Tree [1/2] + 1 class* Applies to species certainty “1” and “2”

only

Less than 2.0 cm dbhLess than 2.0 cm dbh

Less than 2.0cm dbhLess than 2.0cm dbh

Before You Go..Before You Go..

Run verification to ensure sample is complete

Ensure non-verifiable sample data is completed

Remove all string and garbage

Complete tie line flagging and paint

Confirm access, tie point and tie line information

GY Data Collecting, Editing and Reporting SystemGY Data Collecting, Editing and Reporting System

Reports

Field TimeField Time

GyHand/GyHost SetupGyHand/GyHost Setup

In DOS or in Windows environment

CONFIG.SYS– buffers=24 (or multiples of 8)– files=249 (79 for HH) or higher but odd number

AUTOEXEC.BAT– prompt $p$g– path c:\;c:\dos

b = c x cos A

Leaning TreesLeaning Trees

c\A 2 4 6 8 10 11 12 14 16 18****** <2 % ****** **2>% - <5% **

5.0m 5.0 5.0 5.0 5.0 4.9 4.9 4.9 4.9 4.8 4.810.0m 10.0 10.0 9.9 9.9 9.8 9.8 9.8 9.7 9.6 9.5

15.0m 15.0 15.0 14.9 14.8 14.8 14.7 14.7 14.6 14.4 14.320.0m 20.0 20.0 19.9 19.8 19.7 19.6 19.6 19.4 19.2 19.025.0m 25.0 24.9 24.9 24.8 24.6 24.5 24.5 24.3 24.0 23.830.0m 30.0 29.9 29.8 29.7 29.5 29.4 29.3 29.1 28.8 28.535.0m 35.0 34.9 34.8 34.7 34.5 34.4 34.2 34.0 33.6 33.340.0m 40.0 39.9 39.8 39.6 39.4 39.3 39.1 38.8 38.4 38.045.0m 45.0 44.9 44.8 44.6 44.3 44.2 44.0 43.7 43.3 42.850.0m 50.0 49.9 49.7 49.5 49.2 49.1 48.9 48.5 48.1 47.6

a

A

CB

bc

c

A

2 0.9993904 0.9975646 0.9945218 0.99026810 0.98480711 0.98162712 0.97814814 0.97029616 0.96126218 0.951057

cos A

Heights on Leaning Heights on Leaning TreesTrees

Heights - Optimum Heights - Optimum DistancesDistances

Height = 27.0 metersAllowable error ( + 2%) = >26.5 - < 27.5 meters

1 x ht 1.1 x ht 1.15 x ht 1.2 x ht 1.3 x ht 1.4 x ht 1.45 x ht 1.5 x ht 2 x ht 3 x ht

27x 96=25.9

27x 97=26.2 29x90=26.1 31x84=26.0 33x79=26.1 35x74=25.9 37x70=25.9

27x 98=26.5 29x91=26.4 31x85=26.4 33x80=26.4 35x75=26.3 37x71=26.3 39x67=26.1 40x65=26.0 54x48=25.9 81x32=25.9

27x 99=26.7 29x92=26.7 31x86=26.7 33x81=26.7 35x76=26.6 37x72=26.6 39x68=26.5 40x66=26.4 54x49=26.5 81x33=26.7

27x100=27.0 29x93=27.0 31x87=27.0 33x82=27.1 35x77=27.0 37x73=27.0 39x69=26.9 40x67=26.8 54x50=27.0 81x34=27.5

27x101=27.3 29x94=27.3 31x88=27.3 33x83=27.4 35x78=27.3 37x74=27.4 39x70=27.3 40x68=27.2 54x51=27.5 81x35=28.4

27x102=27.5 29x95=27.6 31x89=27.6 33x84=27.7 35x79=27.7 37x75=27.8 39x71=27.7 40x69=27.6 54x52=28.1

27x103=27.8 29x96=27.8 31x90=27.9 33x85=28.1 35x80=28.0 37x76=28.1 39x72=28.1 40x70=28.0

27x104=28.1 29x97=28.2

3x 2x1x

True height

Within the allowable error

Within 3%

Over twice the allowable error

If nothing seems to work …..

Help !Help !Richard Bott

Computer Systems Consultant at (250) 361 – 3886

Will Smith MSRM, Resource Information Branch at (250) 356-6853

Web page - http://

srmwww.gov.bc.ca/tib/vri/ip/index.htmlGyHost on web at:

http://srmwww.gov.bc.ca/tib/vri/ip/software/index.html

Growth & Yield Manuals (Version 2001) available at:

http://srmwww.gov.bc.ca/tib/vri/ip/standards/index.html