土层深度/cm

Soil depth

5a生

Five years

9a生

Nine years

18a生

Eighteen years

33a生

Thirty-three years

43a生

Forty-three years

0~10

48.25 ± 13.78

79.16 ± 14.90

86.25 ± 17.64

68.33 ± 16.59

63.46 ± 5.29

10~20

36.76 ± 6.63

45.37 ± 3.93

42.81 ± 15.91

46.55 ± 4.21

52.64 ± 0.58

20~30

30.61 ± 3.71

31.53 ± 6.21

22.71 ± 12.31

30.20 ± 8.41

45.41 ± 2.51

30~40

21.91 ± 3.70

18.98 ± 9.06

14.67 ± 9.16

16.94 ± 2.61

39.75 ± 12.54

40~50

12.04 ± 3.02

13.27 ± 7.22

8.45 ± 2.22

11.02 ± 0.70

34.18 ± 17.42

50~60

6.95 ± 2.13

6.54 ± 1.77

5.07 ± 0.18

8.96 ± 2.98

30.85 ± 16.10

60~70

4.60 ± 1.75

2.20 ± 0.27

4.19 ± 2.11

3.72 ± 3.24

24.41 ± 13.42

70~80

3.49 ± 2.98

0.46 ± 0.80

0.33 ± 0.57

-

22.26 ± 15.54

80~90

0.97 ± 1.16

-

-

-

22.55 ± 14.43

90~100

-

-

-

-

19.81 ± 15.17

100~110

-

-

-

-

14.15 ± 13.53

110~120

-

-

-

-

12.08 ± 16.33

120~130

-

-

-

-

8.01 ± 13.87