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Table 4 Chemical and microbiological properties of the forest and arable soils

From: Influence of freeze-thaw events on carbon dioxide emission from soils at different moisture and land use

Site

Soil layer

Statistics

pH (H2O)

Total, %

K2SO4 extraction, mg kg-1

MB*

    

C

N

C

N

NH4-N

NO3-N

C

N

FOREST

Litter, 2–3 cm

mean

5.6

29.3

1.0

898

90

32.8

4.7

nd

nd

  

STD

0.3

5.5

0.2

436

40

21.7

3.5

nd

nd

 

Humus layer, 0–4 cm

mean

4.3

3.4

0.2

32.6

3.1

0.5

0.2

84

9.2

  

STD

0.1

1.2

0.1

17

1.4

0.2

0.2

43

7.9

 

Mineral layer, 4–8 cm

mean

4.3

1.1

0.1

22

1.2

0.2

0.0

9.8

1.3

  

STD

0.1

0.2

0.0

4

0.3

0.1

0.1

3.9

0.4

ARABLE

0–4 cm

mean

7.9

1.2

0.1

5

1.1

0.0

0.7

50

6.3

  

STD

0.1

0.1

0.0

1

0.2

0.0

0.2

4.7

0.7

 

4–8 cm

mean

7.9

1.2

0.1

6

1.7

0.0

1.2

71

8.0

  

STD

0.1

0.1

0.0

1

0.3

0.0

0.3

14

0.7

  1. STD – standard deviation, 5 replications; * – C and N immobilized in microbial biomass (MB), mg kg-1; nd-not determined