样地类型 | 土层深度/cm | |||
0~20 | 20~50 | 50~100 | 0~100 | |
牛蒡(Y1) | 14.06 ± 2.67a | 6.83 ± 3.71b | 2.54 ± 0.82b | 7.82 ± 1.76a |
山药(Y2) | 13.88 ± 8.41a | 6.14 ± 1.92b | 2.17 ± 0.86b | 7.39 ± 4.46ab |
棉花(Y3) | 9.91 ± 4.07a | 4.33 ± 1.72b | 1.18 ± 2.16b | 5.14 ± 2.03a |
大豆(Y4) | 15.75 ± 6.42ac | 9.11 ± 5.24b | 1.93 ± 0.08b | 8.94 ± 3.70bc |
玉米(Y5) | 8.82 ± 6.43a | 3.14 ± 1.48b | 0.61 ± 0.20ab | 4.18 ± 1.75ac |
裸地(Y6) | 7.45 ± 1.26ab | 2.92 ± 1.88b | 0.54 ± 0.13b | 3.71 ± 0.68a |