BZ Core Data 1. Scope Soil Carbon Data Soil Moisture Data Brought to you by Jen and Jamie Bonanza...
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Transcript of BZ Core Data 1. Scope Soil Carbon Data Soil Moisture Data Brought to you by Jen and Jamie Bonanza...
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?