土壤层次 Soil horizon | 处理 Treatment | 团聚体含量(%) The amount of soil aggregates | ||||
>2 mm | 2~1 mm | 1~0.25 mm | 0.25~0.053 mm | <0.053 mm | ||
表层 | CK | 2.58 ± 0.88 b | 2.97 ± 2.46 a | 7.21 ± 1.29 a | 53.88 ± 3.47 a | 33.36 ± 3.17 a |
C1 | 2.23 ± 0.37 b | 4.36 ± 0.56 a | 5.97 ± 0.16 ab | 54.73 ± 6.50 a | 32.71 ± 7.28 a | |
C2 | 2.62 ± 0.78 ab | 3.64 ± 0.40 a | 3.74 ± 1.78 b | 52.69 ± 8.56 a | 33.69 ± 5.59 a | |
C3 | 3.19 ± 1.51 ab | 4.36 ± 0.95 a | 7.20 ± 2.82 a | 51.37 ± 2.89 a | 33.88 ± 6.24 a | |
C4 | 5.11 ± 2.18 a | 4.38 ± 0.87 a | 8.36 ± 1.03 a | 59.97 ± 10.43 a | 22.18 ± 12.36 a | |
亚表层 | CK | 3.44 ± 1.16 d | 4.67 ± 0.60 b | 6.72 ± 0.76 ab | 58.03 ± 0.48 a | 27.13 ± 1.47 a |
C1 | 4.07 ± 0.81 cd | 5.69 ± 1.35 b | 8.09 ± 1.26 b | 53.26 ± 5.04 a | 28.89 ± 7.29 a | |
C2 | 6.05 ± 0.76 bc | 4.78 ± 1.20 b | 7.71 ± 0.07 ab | 53.41 ± 18.02 a | 28.05 ± 7.63 a | |
C3 | 8.13 ± 0.23 ab | 7.87 ± 0.05 a | 6.25 ± 0.23 b | 50.36 ± 5.64 a | 27.39 ± 0.06 a | |
C4 | 9.03 ± 2.24 a | 8.34 ± 0.92 a | 7.81 ± 1.23 ab | 53.69 ± 5.55 a | 21.12 ± 5.20 a |