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Title:
CSPs: Soil CNS and pH analyses of depth increments in the Comparative Study Plots
Access rights:
Free for public
Usage rights:
Permission is granted to anybody to access, use and publish all open for public data freely. The commercial use of any data is prohibited. The quality and completeness of data cannot be guaranteed. Users employ these data at their own risk. In order to make attribution of use for owners of the data possible, the identifier of ownership of data must be retained with every data record. Users must publicly acknowledge, in conjunction with the use of the data, the data owners. Cite the data as follows: Geißler, C., Scholten, T. and Kühn, P. (2009): CNS and pH analyses of soils: depth increments of 27 Comparative Study Plots . BEF-China data portal (Accessed through URL http://china.befdata.biow.uni-leipzig.de/datasets/82)
Published:
doi:10.1890/09-2172.1
Abstract:
Soil chemical laboratory analyses of all 27 comparative study plots. Contents of carbon, nitrogen and sulphur as well as pH-values (H2O and KCl) of six depth increments per CSP. Total depth is 50 cm.
Design:
Depth increments were taken from systematic corings: 1 coring per subplot means 9 corings per CSP. Soil cores had a diameter of 3cm². Samples were bulked from the 9 corings to one sample per depth increment (0-5, 5-10, 10-20, 20-30, 30-40, 40-50 cm.), so that 6 samples exist per CSP. samples were air-dried, sieved < 2mm, ground using a ball mill, using around 40 mg for measurement with vario EL III (Elementar)
Spatial extent:
The Gutianshan National Nature Reserve (NNR) is located in the western part of Zhejiang Province (29º8'18" – 29º17'29" N, 118º2'14" – 118º11'12" E, Fig. 1). The Gutianshan NNR has an area of approximately 81 km2. From 27 comparative study plots (CSPs) soil samples were taken in 6 depth increments per CSP
Temporal extent:
Samples were collected 2008 and 2009. Lab analyses were carried from 2009 to 2011
Taxonomic extent:
no organisms
Measurement cirumstances:
No information available
Data analysis:
pH (KCl) is the maximum potential acidity under the present soil conditions, pH (H2O) is the current acidity

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Dataset column

Name:
lab_num
Definition:
laboratory number of laboratory of soil science and geoecology in Tübingen
Unit:
No information available
Datagroup:
Laboratory number of Laboratory of Soil Science and Geoecology in Tübingen
Keywords:
soil base
Values:
3379
3381
3378
3380
3382
Contributors:

Dataset column

Name:
CSP
Definition:
name of the CSP in the Nature ReserveBEF research plot nameReasearch plots of the Biodiversity - Ecosystem functioning experiment (BEF-China). There are three main sites for research plots in the BEF Experiment: Comparative Study Plots (CSP) in the Gutianshan Nature Reserve, having a size of 30x30m^2, measured on the ground.
Unit:
No information available
Datagroup:
BEF research plot name
Keywords:
CSP
Values:
CSP04
CSP02
CSP03
CSP01
CSP05
Contributors:
No information available

Dataset column

Name:
sample_num
Definition:
field name of the sample
Unit:
No information available
Datagroup:
Helper
Keywords:
soil base
Values:
CSP01-S-1-2
CSP01-S-1-1
CSP01-S-1-5
CSP01-S-1-3
CSP01-S-1-4
Contributors:
No information available

Dataset column

Name:
depth_lb
Definition:
depth (lower boundary) of the sample
Unit:
cm
Datagroup:
Soil depth
Keywords:
soil, soil depth
Values:
20
40
10
5
30
Contributors:
No information available

Dataset column

Name:
pH_H2O
Definition:
pH value, mean from two values determined by H20 method. solutionH20 : soil = 2.5:1
Unit:
pH
Datagroup:
pH value
Keywords:
pH
Values:
4.1
4.3
4.2
3.9
4.4
Contributors:

Dataset column

Name:
pH_KCl
Definition:
pH value, mean from two values determined in 1 M KCL
Unit:
pH
Datagroup:
pH value
Keywords:
pH
Values:
3.5
3.6
3.4
3.7
3.3
Contributors:

Dataset column

Name:
N_t
Definition:
total organic nitrogen content
Unit:
Mass-%
Datagroup:
Nitrogen
Keywords:
SON, nitrogen
Values:
0.04
0.02
<0.02
0.03
0.05
Contributors:

Dataset column

Name:
C_t
Definition:
total soil organic carbon content
Unit:
Mass-%
Datagroup:
Carbon
Keywords:
SOC, carbon
Values:
0.25
0.2
0.23
0.21
0.27
Contributors:

Dataset column

Name:
S_t
Definition:
total sulphur content
Unit:
Mass-%
Datagroup:
Sulphur
Keywords:
S
Values:
0.05
0.05481838807463646
0
< 0.05
0.06
Contributors:

Dataset column

Name:
C_N
Definition:
ratio organic carbon/organic nitrogen
Unit:
ratio
Datagroup:
Carbon Nitrogen ratio
Keywords:
C/N ratio
Values:
10.6
10.8
10.7
10.3
10
Contributors:

No information available


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16 scholten medium

Thomas
Scholten

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37 Datasets

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5 Projects

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27 k%c3%bchn medium

Peter
Kühn

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29 Datasets

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2 Projects

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52 gei%c3%9fler medium

Christian
Geißler

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13 Datasets

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1 Projects

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