Table 1 Laboratory analysis data for all 27 CSPs for a soil depth column of 0 cm to 50 cm (calculated as weighted mean of six sampled depth intervals).

From: The strength of soil-plant interactions under forest is related to a Critical Soil Depth

Description

Abbrev.

Min

SD

Median

Mean

Max

Dynamic soil properties

pH H2O

pHH20

4.32

0.17

4.70

4.70

5.06

pH KCl

pHKCl

3.68

0.10

3.81

3.83

4.01

Effective cation exchange capacity

CECeff

28.61

14.46

45.81

47.97

82.28

Na [µmolc g−1]

IE Na

0.10

0.13

0.19

0.24

0.29

K [µmolc g−1]

IE K

0.73

0.29

1.19

1.21

1.83

Mg [µmolc g−1]

IE Mg

0.36

0.60

1.00

1.17

3.50

Ca [µmolc g−1]

IE Ca

0.45

1.28

1.64

2.01

6.08

Mn [µmolc g−1]

IE Mn

0.09

0.33

0.36

0.49

1.44

Fe [µmolc g−1]

IE Fe

0.09

0.22

0.29

0.31

1.16

Al [µmolc g−1]

IE Al

22.64

13.71

37.46

41.04

74.64

H [µmolc g−1]

IE H

0.73

0.54

1.43

1.53

2.88

Base saturation [%]

BS

4.06

3.91

8.74

9.50

21.07

Exchangeable Acidity [%]

EA

23.90

14.18

38.70

43.37

78.54

Total organic nitrogen [mass-%]

Nt

0.045

0.04

0.08

0.09

0.22

Total organic carbon [mass-%]

Ct

0.71

0.76

1.21

1.43

4.18

Soil organic carbon stocks [t ha−1]

SOCstocks

0.23

0.49

0.78

0.90

2.52

C:N ratio

CN

12.77

1.74

14.75

15.12

18.92

Stable soil properties

Bulk Density [g cm−3]

BD

0.81

0.15

1.08

1.08

1.46

Coarse Material [%]

CM

0

18.51

15.82

20.12

72.60

Coarse-sized sand [%]

csa

4.06

6.47

15.13

15.65

29.72

Medium-sized sand [%]

msa

3.60

4.28

14.12

13.12

20.78

Fine-sized sand [%]

fsa

1.55

1.46

5.29

5.15

8.37

Very fine-sized sand [%]

vfsa

4.59

2.65

9.22

8.71

13.43

Coarse-sized silt [%]

csi

5.63

5.93

13.28

15.21

26.27

Medium-sized silt [%]

msi

8.79

3.86

11.59

13.02

24.64

Fine-sized silt [%]

fsi

5.28

2.01

7.68

7.95

13.69

Clay [%]

clay

11.70

3.35

21.70

21.21

26.40

Silt sum [%]

sisum

22.60

10.04

33.70

36.17

64.40

Sand sum [%]

sasum

13.90

10.38

43.80

42.58

60.00

  1. All elements are exchangeable elements and are shown in ion equivalents. Soil texture classes are shown according to72. Abbrev.: abbreviation, Min: minimum, SD: standard deviation, Max: maximum, IE: ion equivalent. Information on data of all other soil depth columns can be found at Supplement Tables 16.