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Title:
Main Experiment: Soil CNS and pH analyses of depth increments on Site A (VIPs and VIPReps 2014)
Access rights:
Free within projects
Usage rights:
No information available
Published:
No information available
Abstract:
Soil chemical laboratory analyses of VIPs and VIPReps on Site A. Contents of carbon, nitrogen and sulphur as well as pH-values (in H2O and KCl) of five depth increments per plot.
Design:
Five depth increments were taken from systematic corings: Nine corings per plot were pooled to one sample per depth increment (0-5, 5-10, 10-20, 20-30, 30-50 cm). Samples were air-dried, sieved < 2mm, grinded using a ball mill. Subsamples of 40 mg were used for measurements with an elemental analyzer (Vario EL III, Elementar, Hanau, Germany).
Spatial extent:
Experimental Site A 29°08'-29°11'N 117°90'-117°93'E
Temporal extent:
Samples were collected 2014. Lab analyses were carried out from 2014 to 2015.
Taxonomic extent:
No organisms
Measurement cirumstances:
No information available
Data analysis:
pH (KCl) is the maximum potential acidity under present soil conditions. pH (H2O) is the current acidity.

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Dataset column

Name:
plot_number
Definition:
Plot Letter Code; Datagroup description: Plot name (letter, number code)
Unit:
No information available
Datagroup:
Plot name Main experiment (letter, number code)
Keywords:
Site A, location
Values:
E23
E24
E31
E33
C32
Contributors:
No information available

Dataset column

Name:
sample_num
Definition:
field name of the sample; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
soil base
Values:
2014_A-C32-5
2014_A-C32-1
2014_A-C32-3
2014_A-C32-4
2014_A-C32-2
Contributors:

Dataset column

Name:
lab_num
Definition:
laboratory number of laboratory of soil science and geoecology in Tübingen; Datagroup description: 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:
22876
22873
22877
22875
22874
Contributors:

Dataset column

Name:
depth_lb
Definition:
depth (lower boundary) of the sample; Datagroup description: Soil depth
Unit:
cm
Datagroup:
Soil depth
Keywords:
soil, soil depth
Values:
5
20
10
30
50
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; Datagroup description: pH value; Instrumentation: electrodes Sentix 81 and WTW pH-meter (derived from datagroup); Instrumentation: electrodes Sentix 81 and WTW pH-meter (derived from datagroup)
Unit:
pH
Datagroup:
pH value
Keywords:
pH
Values:
4.27
4.4
4.37
4.34
4.24
Contributors:
No information available

Dataset column

Name:
pH_KCl
Definition:
pH value, mean from two values determined in 1 M KCL; Datagroup description: pH value; Instrumentation: electrodes Sentix 81 and WTW pH-meter (derived from datagroup); Instrumentation: electrodes Sentix 81 and WTW pH-meter (derived from datagroup)
Unit:
pH
Datagroup:
pH value
Keywords:
pH
Values:
3.47
3.53
3.49
3.5
3.52
Contributors:
No information available

Dataset column

Name:
N_t
Definition:
total organic nitrogen content; Datagroup description: Nitrogen; Instrumentation: Elemental Analyzer (derived from datagroup); Instrumentation: Elemental Analyzer (derived from datagroup)
Unit:
Mass-%
Datagroup:
Nitrogen
Keywords:
SON, nitrogen
Values:
0.05155109986662865
0.05111108347773552
0.04841114953160286
0.05626979097723961
0.05503406748175621
Contributors:
No information available

Dataset column

Name:
C_t
Definition:
total soil organic carbon content; Datagroup description: Carbon content
Unit:
Mass-%
Datagroup:
Carbon
Keywords:
SOC, carbon
Values:
0.3712614178657532
0.3647175431251526
0.3539162874221802
0.3713761866092682
0.37357622385025024
Contributors:
No information available

Dataset column

Name:
S_t
Definition:
total sulphur content; Datagroup description: Sulphur; Instrumentation: heat combustion and thermal conductivity detection using a CNS-Elementar analyser, varioEL III from Elementar (derived from datagroup); Instrumentation: heat combustion and thermal conductivity detection using a CNS-Elementar analyser, varioEL III from Elementar (derived from datagroup); Datagroup description: S content
Unit:
Mass-%
Datagroup:
Sulphur
Keywords:
S
Values:
0.05038600414991379
< 0.05
0.05005105584859848
Contributors:
No information available

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Steffen
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