退耕年限(a) | 容重(g/cm3) | 孔隙度(%) | ||||||||
0~10 cm | 10~20 cm | 20~30 cm | 30~40 cm | 平均 | 0~10 cm | 10~20 cm | 20~30 cm | 30~40 cm | 平均 | |
1 | 1.53 | 1.49 | 1.47 | 1.43 | 1.48 | 44.36 | 42.37 | 43.71 | 46.08 | 44.13 |
2 | 1.55 | 1.53 | 1.50 | 1.50 | 1.52 | 41.58 | 43.45 | 43.45 | 42.42 | 42.73 |
3 | 1.25 | 1.33 | 1.58 | 1.59 | 1.44 | 52.96 | 49.74 | 40.45 | 39.87 | 45.76 |
4 | 1.41 | 1.41 | 1.48 | 1.46 | 1.44 | 46.94 | 46.82 | 44.20 | 44.84 | 45.70 |
5 | 1.42 | 1.44 | 1.51 | 1.50 | 1.47 | 46.56 | 45.74 | 43.03 | 43.40 | 44.68 |
8 | 1.17 | 1.07 | 1.31 | 1.29 | 1.21 | 55.93 | 59.71 | 50.71 | 51.38 | 54.43 |
15 | 1.56 | 1.14 | 1.34 | 1.39 | 1.36 | 41.32 | 57.04 | 49.37 | 47.48 | 48.80 |
24 | 1.31 | 1.44 | 1.44 | 1.46 | 1.41 | 50.75 | 45.62 | 45.70 | 44.81 | 46.72 |
31 | 1.28 | 1.43 | 1.46 | 1.53 | 1.42 | 51.71 | 45.96 | 44.95 | 42.43 | 46.26 |