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Title:
CSPs: Soil phosphorus neighbourhood effects: soil P fraction, pH, C/N in CSP 13, 14, 27
Access rights:
Private
Usage rights:
No information available
Published:
No information available
Abstract:
Soil phosphorous and pH in three-tree groups in the Comparative Study sites. 29°08'-29°17'N 118°02'-118°11'E
Design:
Three trees are used as minimal neighborhood to study neighborhood effects on soil phosphorous
Spatial extent:
Comparative Study Sites 29°08'-29°17'N 118°02'-118°11'E
Temporal extent:
No information available
Taxonomic extent:
Soil samples are later related to the tree species of the three trees making up the three tree group.
Measurement cirumstances:
No information available
Data analysis:
No information available

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Dataset column

Name:
Triangle_ID
Definition:
Triangle ID used for determination of soil chemical parameters
Unit:
No information available
Datagroup:
Helper
Keywords:
Tree Triangle, Soil P, Hedley fractions
Values:
203
201
202
204
205
Contributors:
No information available

Dataset column

Name:
Pos
Definition:
Individual position within triangle
Unit:
No information available
Datagroup:
Helper
Keywords:
CSP
Values:
b
a
c
d
Contributors:
No information available

Dataset column

Name:
CSP
Definition:
Number of Comparative Study Plot
Unit:
No information available
Datagroup:
BEF research plot name
Keywords:
CSP
Values:
CSP13
CSP14
CSP27
Contributors:
No information available

Dataset column

Name:
Plot species
Definition:
Composition of species and central position within triangle
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
CPS
CP
Castanopsis eyrei
CCC
Pinus massoniana
Contributors:
No information available

Dataset column

Name:
Lab_ID_Freiburg
Definition:
Identifier for sample in the Freiburg Lab database
Unit:
No information available
Datagroup:
Laboratory number of Laboratory of Silviculture in Freiburg
Keywords:
No information available
Values:
h04202
h04203
h04204
h04201
h04205
Contributors:
No information available

Dataset column

Name:
PH_H20
Definition:
pH of sample determined in H2O
Unit:
µg/g
Datagroup:
pH value
Keywords:
Phosphorous
Values:
3.9
3.78
3.94
3.87
3.47
Contributors:
No information available

Dataset column

Name:
PH_CaCl2
Definition:
pH of sample determined in CaCl2
Unit:
µg/g
Datagroup:
pH value
Keywords:
Phosphorous
Values:
3.19
3.27
2.98
3.15
3.24
Contributors:
No information available

Dataset column

Name:
Pi_resin
Definition:
Inorganic P extracted with Resin bags in 20ml H20 for 16hrs, measured in 0.5M HCL
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
11.379354674371191
13.36435579762397
11.022049144444974
11.509626246576214
10.975490202369246
Contributors:
No information available

Dataset column

Name:
Pi_HCO3
Definition:
Inorganic P measured in Extract which was shaken in 25ml NaHCO3 for 16hrs
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
0.047200690125581264
0.16172094609693877
0.2718157763840702
0.2930606684092306
0.14133876074174584
Contributors:
No information available

Dataset column

Name:
Po_HCO3
Definition:
Organic P measured in Extract which was shaken in 25ml NaHCO3 for 16hrs
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
0.9226600429686442
0.16895366520516553
0.8076338687968789
10.036106479252766
10.049779635735291
Contributors:
No information available

Dataset column

Name:
Pi_NaOH
Definition:
Inorganic P measured in Extract which was shaken in 25ml NaOH for 16hrs
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
10.894330061432925
1.9926302252788144
1.952287142404649
10.292311151552825
11.672117379767663
Contributors:
No information available

Dataset column

Name:
Po_NaOH
Definition:
Organic P measured in Extract which was shaken in 25ml NaOH for 16hrs
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
10.764571952072323
11.735363599046371
11.487959894335777
10.200239964904918
11.561803493384472
Contributors:
No information available

Dataset column

Name:
Pi_S-NaOH
Definition:
Inorganic P measured in Extract which was sonicated in 20ml NaOH for 20min
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
0.027833586897677034
0.07900314092230648
0.11471825873919654
0.119113933564015
0.10327303179427763
Contributors:
No information available

Dataset column

Name:
Po_S-NaOH
Definition:
Organic P measured in Extract which was sonicated in 20ml NaOH for 20min
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
10.164205632518298
10.275161555737984
10.10034562219117
10.217791584073202
10.009586731785896
Contributors:
No information available

Dataset column

Name:
Pi_HCl 1M
Definition:
Inorganic P extracted with 20ml 1m HCL for 16hrs
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
0
0.024812197017355604
0.013574520336767938
0.009214323723918756
0.040020961904109496
Contributors:
No information available

Dataset column

Name:
TP_HClconc
Definition:
Total P measured in Extract which was cooked with 10ml concentrated HCL at 85°C for 20min, after that added an extra 5ml concentrated HCL
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
10.255973769244802
10.05152122594097
10.296002384984433
10.034562357845964
10.066740058617913
Contributors:
No information available

Dataset column

Name:
TP_residual
Definition:
Total residual P extracted with HNO3-Pressure-Extraction method
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
10.790607903153832
10.817124461842802
10.325302174121083
10.40974955711681
10.079085028012503
Contributors:
No information available

Dataset column

Name:
P_lab
Definition:
Labile P-Pool as the sum of P_resin, Pi_HCO3 and Po_HCO3
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
10.473379367998604
10.374767855315259
10.217194968888554
10.446468368985222
10.1545587624394
Contributors:
No information available

Dataset column

Name:
P_mod
Definition:
Moderately labile P-Pool as the sum of Pi_NaOH, Po_NaOH, Pi_S-NaOH, Po_S-NaOH and Pi_HCL 1M
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
15.091390792618695
12.01648530093531
13.61824335010444
16.58181462340107
16.204145879911614
Contributors:
No information available

Dataset column

Name:
P_sta
Definition:
Stable P-Pool as the sum of TP_HClconc and TP_residual
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
13.253912867001791
13.576192101195339
12.693819670745532
13.349589608883143
12.306110570989745
Contributors:
No information available

Dataset column

Name:
Sum_Frac
Definition:
Sum of all P fractions
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
101.96996517613637
101.71057500455136
101.10639012212219
101.1273340996093
101.83913138533643
Contributors:
No information available

Dataset column

Name:
P_t
Definition:
Individually measured total P with HNO3 pressure extraction method as reference for the sum of all P fractions
Unit:
µg/g
Datagroup:
Phosphorus
Keywords:
No information available
Values:
101.850133570408
100.931401639612
100.297595174031
100.926453082139
101.12130306083
Contributors:
No information available

Dataset column

Name:
C_t
Definition:
Total Carbon in sample
Unit:
%
Datagroup:
Carbon
Keywords:
carbon
Values:
1.487
1.118
10.1899995803833
1.352
1.129
Contributors:
No information available

Dataset column

Name:
N_t
Definition:
Total Nitrogen in sample
Unit:
%
Datagroup:
Nitrogen
Keywords:
nitrogen
Values:
0.05639999999999999
0.07049999999999998
0.064
0.0696
0.0661
Contributors:
No information available

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Jürgen
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