BZ Core Data

1. Scope

Soil Carbon DataSoil Moisture Data

Brought to you byJen and Jamie

Bonanza Creek LTER 2008

-5 0 5 10 15 20 25 30

O rganic s oil thic k nes s , c m

-2

0

2

4

6

8

10

12

14

16

Monthly average of daily m

inimum

temperature at 5cm

depth

June r2 = 0.531; r = -0.7284, p = 0.0000002; y = 8.96 - 0.345*x

July r2 = 0.542; r = -0.7368, p = 0.0000001; y = 11.07 - 0.278*x

A ug r2 = 0.568; r = -0.7539, p = 0.0000001; y = 9.118 - 0.257*x

June M in July M in A ug. M in

Why Soil ?

Mo

nth

ly A

vera

ge

Su

rfac

e T

emp

erat

ure

Organic Soil Thickness, cm

-5 0 5 10 15 20 25 30

O rganic s oil thic k nes s , c m

-2

0

2

4

6

8

10

12

14

16

Monthly average of daily m

inimum

temperature at 5cm

depth

June r2 = 0.531; r = -0.7284, p = 0.0000002; y = 8.96 - 0.345*x

July r2 = 0.542; r = -0.7368, p = 0.0000001; y = 11.07 - 0.278*x

A ug r2 = 0.568; r = -0.7539, p = 0.0000001; y = 9.118 - 0.257*x

June M in July M in A ug. M in

Delta Junction

BurnedCeratadon

IntermediateAulocomnium

MatureFeathermoss

Mo

nth

ly A

vera

ge

Su

rfac

e T

emp

erat

ure

Organic Soil Thickness, cm

-20 0 20 40 60 80 100 120

O rganic thickness (cm)

-8

-6

-4

-2

0

2

4

6

8

Mo

nth

ly me

an

of m

inim

um

da

ilyte

mp

era

ture JuneMin5cm

JulyMin5cm AugMin5cm

Threshold Effect

1 .0 6 .5 9 .0 1 2 .0 1 4 .5 1 7 .0 2 0 .0 2 5 .0

O rg a n i c th i ckn e ss (cm )

-8

-6

-4

-2

0

2

4

6

8

Mo

nth

y ave

rag

e o

f min

imu

m d

aily te

mp

era

ture

at 5

cm d

ep

th

Ju n e r2 = 0 .2 8 5 7 ; r = -0 .5 3 4 5 , p = 0 .0 0 7 1 ; y = 2 .7 6 - 0 .1 1 3 *xJu l y r2 = 0 .3 3 3 4 ; r = -0 .5 7 7 4 , p = 0 .0 0 3 1 ; y = 4 .3 6 1 - 0 .2 4 0 *xA u g r2 = 0 .2 5 4 5 ; r = -0 .5 0 4 5 , p = 0 .0 1 1 9 ; y = 2 .5 3 - 0 .2 3 1 *x

Ju n e M i n 5 cm Ju lyM in 5 cm A u g M in 5 cmM

on

thly

Ave

rag

e S

urf

ace

Tem

per

atu

re

Thickness

Data Contributorsmany thanks!

• Lola Oliver• Roger Ruess• Evan Kane• Jason Vogel• Isla Meyers-Smith• Teresa Hollingsworth• Jennifer Harden, Kristen Manies• Ted Schuur• Merritt Turetsky• Chien-Lu Ping • Kathy O’Neill

2a. Design and Status of Soil Carbon Data

0

20

40

60

80

100

DE

C BS

Wet

land WS

Car

bo

n P

rofi

les

Count of BS/WS/DEC/wetland

BS/WS/DEC/wetland

0

20

40

60

80

100

120

Burned Mature Young

Car

bo

n P

rofi

les

Count of Stand Age Class

Stand Age Class

Total

0

20

40

60

80

100

Lowland Upland Wetland

Car

bo

n P

rofi

les

Count of Upland/Lowland/Wetland

Upland/Lowland/Wetland

0

10

20

30

40

50

60

1 2 3 4 5 6 7 8 91

01

21

31

51

61

82

02

22

5Nu

mb

er

of

Sit

es

wit

h N

Re

ps

Count of Replicates

Replicates

Landscape class

Stand AgeVeg Class when Sampled

020406080

100

Ca

rib

ou

Po

ker

LT

ER

1

LT

ER

2

LT

ER

Au

x

Ca

rbo

n P

rofi

les

WSWetlandBSDEC

Count of General Site

General Site

BS/WS/DEC/wetland

2a. Design and Status of Soil Carbon Data

Upl

and

131 sites, most with replicate profiles

Flo

odpl

ain

CP

CR

W

LTER Clusters

Change Detectionreplicate profiles

0

10

20

30

40

50

601 2 3 4 5 6 7 8 9

10

12

13

15

16

18

20

22

25N

um

be

r o

f S

ite

s w

ith

N R

ep

s

Count of Replicates

Replicates

2b. Design and Status of Soil MoistureOther Site Name

Hyper

Stand

Measurement Duration (years) Probe Type

Site T

Organic vs. Mineral Soil

Measurment Depths (cm)

Measurment Increment

LTER 1 http://www.lter.uaf.edu/ascii/script_outputs/bnz_moist_out_100.txtweather station2002-Present CS615 upland mineral 5, 10, 20, 50 hourlyLTER 2 http://www.lter.uaf.edu/ascii/script_outputs/bnz_moist_out_200.txtweather station2004 - Present CS615 lowland mineral 5, 10, 20, 50 hourlyUP1A http://www.lter.uaf.edu/ascii/script_outputs/bnz_moist_out_111.txtopen hardwood2003-Present CS615 upland mineral 5, 10, 20, 50 hourlyUP2A http://www.lter.uaf.edu/ascii/script_outputs/bnz_moist_out_121.txtmixed white spruce - paper birch2003-Present CS615 upland mineral 5, 10, 20, 50 hourlyUP3A http://www.lter.uaf.edu/ascii/script_outputs/bnz_moist_out_131.txtmature white spruce2003-Present CS615 upland mineral 5, 10, 20, 50 hourlyFP1A http://www.lter.uaf.edu/ascii/script_outputs/bnz_moist_out_211.txtearly successional veg1985-Present CS615 lowland mineral 5, 10 (1985-2002), 5, 10, 20, 50 (2003-Present)hourlyFP2A http://www.lter.uaf.edu/ascii/script_outputs/bnz_moist_out_221.txtearly successional veg1985-Present CS615 lowland mineral 5, 10 (1985-2002), 5, 10, 20, 50 (2003-Present)hourlyFP3A http://www.lter.uaf.edu/ascii/script_outputs/bnz_moist_out_231.txtmixed balsam poplar and white spruce2003-Present CS615 lowland mineral 5, 10, 20, 50 hourlyFP4A http://www.lter.uaf.edu/ascii/script_outputs/bnz_moist_out_241.txtmature white spruce1985-Present CS615 lowland mineral 5, 10 (1985-2002), 5, 10, 20, 50 (2003-Present)hourlyFP5A http://www.lter.uaf.edu/ascii/script_outputs/bnz_moist_out_251.txtblack spruce2003-Present CS615 lowland mineral 5, 10, 20, 50 hourlyFP3A http://www.lter.uaf.edu/ascii/files/313_LTER-TDR-2006-WK.txtmixed balsam poplar and white spruce1994-Present Tektronix1502B lowland mineral 5, 10, 20, 50 weeklyFP3C http://www.lter.uaf.edu/ascii/files/313_LTER-TDR-2006-WK.txtmixed balsam poplar and white spruce1994-Present Tektronix1502B lowland mineral 5, 10, 20, 50 weeklyUP2A http://www.lter.uaf.edu/ascii/files/313_LTER-TDR-2006-WK.txtmixed white spruce - paper birch1994-Present Tektronix1502B upland mineral 5, 10, 20, 50 weeklyUP2C http://www.lter.uaf.edu/ascii/files/313_LTER-TDR-2006-WK.txtmixed white spruce - paper birch1994-Present Tektronix1502B upland mineral 5, 10, 20, 50 weeklyFP3A http://www.lter.uaf.edu/ascii/files/319_FP3A-TDR-2002_2006.hr.txtmixed balsam poplar and white spruce2002-Present TDR lowland mineral 5, 10, 20, 50 every 2 hoursUP2A http://www.lter.uaf.edu/ascii/files/318_UP2A-TDR-1996_2000.hr.txtmixed white spruce - paper birch1996-2000 TDR upland mineral 5, 10, 20, 50 every 2 hoursFP3A http://www.lter.uaf.edu/ascii/files/314_LTER-SMT-2003.wk.txtmixed balsam poplar and white spruce1991-2003 tensiometers lowland mineral - weeklyFP3B http://www.lter.uaf.edu/ascii/files/314_LTER-SMT-2003.wk.txtmixed balsam poplar and white spruce1991-2003 tensiometers lowland mineral - weeklyFP3C http://www.lter.uaf.edu/ascii/files/314_LTER-SMT-2003.wk.txtmixed balsam poplar and white spruce1991-2003 tensiometers lowland mineral - weekly

FSL- LTTG http://www.lter.uaf.edu/ascii/files/probe.txtmany stands? 1969-1974 neutron probe ? mineral 6 unknown depths weeklyFP1A http://www.lter.uaf.edu/ascii/files/316_FP1A-1985_2003-SM.hr.txtearly successional veg1985-2003 tensiometers lowland mineral 10, 50 hourlyFP2A http://www.lter.uaf.edu/ascii/files/316_FP2A-1985_2003-SM.hr.txtearly successional veg1985-2003 tensiometers lowland mineral 10, 50 hourlyFP4A http://www.lter.uaf.edu/data_detail.cfm?datafile_pkey=316mature white spruce1985-2003 tensiometers lowland mineral 10, 50 hourlyFP2A http://www.lter.uaf.edu/ascii/files/317_FP2A-TDR-1993_1995.hr.txtearly successional veg1993 - 1995 Tektronix1502Blowland mineral 5, 10, 20, 50 hourly

No Organic Horizons5 probe types: comparable?

Somewhat Poorly Drained Floodplains

-20

-10

0

10

20

30

40

50

60

0 20 40 60 80

Root Abundance Index

Hei

gh

t ab

ove

Min

eral

So

il, c

m

Organic Soil

Mineral Soil

3a. Readiness of Data

Soil C Stocks and Quality (C/N )

01020304050607080

final offline (blank)

So

il C

arb

on

Pro

file

s

LTER AuxLTER 2LTER 1CaribouPoker

Count of Data status: Offline, Interim, Final

Data status: Offline, Interim, Final

General Site

FloodplainUpland

3a and b. RelevanceClimate, successional dynamics,

threshold behavior

• Potential attributes for change detection:SOIL CARBON SOIL MOISTURE

LITTER QUALITY DECOMPOSABILITY CHANGES IN STOCK MOISTURE RETENTION

• Threshold behavior AEROBICITY MOISTURE RETENTION

IMPORTANCE OF O HORIZONS INCLUDING LITTER LAYERS

Every probe, every installation

3b. Readiness of Soil Moisture Data: Calibration of probes

VMC Observed (cored)

VM

C P

redi

cted

(C

alib

ratio

n)Predicted vs. measured volumetric water content

What are your plans for further analysis over the next two years (specifically, what do you think you might be able to contribute to a special issue in which paper submission might be scheduled for June 2009)?

7. What recommendations do you have at this time for how we might alter our collection of core data variables ? Carbon:

SIMPLE, RELEVANT, SYSTEMATIC

1. Re-sample FP and UP and Wetlands for soil carbon

2. Increase sample n for O horizons

Bulk density, C, N

3. Initiate bioavailability measures:

soil incubations,fractionation,litterbags

include archive samples

4. Repeat every 5 or 10 yrs

…….NEEDED !!!..............SOIL PREP LAB ………………

7. What recommendations do you have at this time for how we might alter our collection of core data variables ? Soil Moisture:

1.Recover %vol moisture data from all projects

2. Back- calibrate %VMC in database

3. New probes to include measurement of O horizons

TDR and temperature

4. Calibrate all probes with 1-2 core-samplings of VMC when wet, moist

5. Repeat calibrations every 5-10 yrs; rotate sites through sampling program

05

1015202530354045

19

89

19

99

20

00

20

01

20

02

20

03

20

04

20

06

(bla

nk)

So

il C

arb

on

Pro

file

s

(blank)WSWetlandBSDEC

Count of Date Sampled

Date Sampled

BS/WS/DEC/wetland

?

36

413

3

15

2

# with soil archivesDate Sampled

Opportunities for Sample Re-analysis

8. Do you perceive other opportunities for the collection and analysis of core data beyond our current foci?