土层深度/cm

Soil depth

9a生

Nine years

16a生

Sixteen years

28a生

Twenty-eight years

0~10

76.85 ± 10.97

65.61 ± 10.69

67.26 ± 7.49

10~20

38.22 ± 6.77

46.21 ± 2.01

32.40 ± 4.96

20~30

36.05 ± 7.35

28.31 ± 6.92

23.75 ± 5.89

30~40

22.95 ± 0.55

22.52 ± 5.39

14.06 ± 8.37

40~50

11.94 ± 5.77

16.52 ± 4.56

9.76 ± 10.19

50~60

8.78 ± 1.16

10.32 ± 1.28

4.08 ± 7.06

60~70

6.19 ± 1.63

4.60 ± 2.25

2.27 ± 3.93

70~80

3.34 ± 0.58

1.41 ± 1.00

-

80~90

1.04 ± 1.81

-

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