巴丹吉林沙漠周边地区土壤养分和粒度特征
|
王蒙, 逯军峰, 付鹏, 董治宝
|
Characteristics of soil nutrients and grain size around Badain Jaran Desert
|
Meng Wang, Junfeng Lu, Peng Fu, Zhibao Dong
|
|
表6 研究区域20—40 cm土壤粒级级配的统计特征值
|
Table 6 Statistical eigenvalues of grain sizes in 20-40 cm soil layer of study areas
|
|
粒级 | 统计 参数 | 研究区域 |
---|
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
---|
黏土 <0.005 mm | 最小值 | 0.00 | 0.00 | 0.44 | 0.00 | 0.81 | 0.00 | 0.00 | 1.16 | 最大值 | 4.31 | 2.33 | 14.02 | 6.36 | 9.96 | 2.20 | 3.41 | 2.46 | 平均值 | 1.64 | 0.58 | 5.81 | 3.11 | 5.39 | 0.44 | 1.71 | 1.81 | CV/% | 87.64 | 200.00 | 124.49 | 102.18 | 120.05 | 223.61 | 141.42 | 50.73 | 粉沙 0.005—0.063 mm | 最小值 | 2.47 | 0.00 | 1.66 | 1.86 | 0.37 | 0.00 | 0.59 | 2.40 | 最大值 | 11.44 | 7.33 | 40.60 | 11.68 | 16.32 | 5.89 | 11.56 | 4.52 | 平均值 | 5.49 | 2.54 | 16.25 | 7.86 | 8.35 | 1.75 | 6.08 | 3.46 | CV/% | 68.41 | 128.85 | 130.65 | 66.90 | 135.10 | 135.19 | 127.64 | 43.35 | 极细沙 0.063—0.125 mm | 最小值 | 19.60 | 9.59 | 15.69 | 18.14 | 11.08 | 5.57 | 22.73 | 11.57 | 最大值 | 33.00 | 19.27 | 19.64 | 38.55 | 26.05 | 16.01 | 28.30 | 26.47 | 平均值 | 26.88 | 15.16 | 17.14 | 30.27 | 18.57 | 10.64 | 25.52 | 19.02 | CV/% | 22.15 | 28.64 | 12.68 | 35.47 | 57.01 | 42.92 | 15.45 | 55.40 | 细沙 0.125—0.25 mm | 最小值 | 33.88 | 41.44 | 14.83 | 33.05 | 34.04 | 21.11 | 41.33 | 23.42 | 最大值 | 49.86 | 48.07 | 47.14 | 41.85 | 55.74 | 40.58 | 54.15 | 40.03 | 平均值 | 43.50 | 45.27 | 34.46 | 38.14 | 44.89 | 29.28 | 47.74 | 31.73 | CV/% | 13.22 | 6.80 | 50.02 | 11.95 | 34.18 | 24.83 | 19.00 | 37.01 | 中沙 0.25—0.5 mm | 最小值 | 9.47 | 27.76 | 10.16 | 6.59 | 16.94 | 20.26 | 15.63 | 13.43 | 最大值 | 19.47 | 37.31 | 30.59 | 10.37 | 26.24 | 34.96 | 19.97 | 21.05 | 平均值 | 13.80 | 31.95 | 21.78 | 8.43 | 21.59 | 27.18 | 17.80 | 17.24 | CV/% | 32.75 | 12.39 | 48.22 | 22.47 | 30.47 | 22.03 | 17.27 | 31.24 | 粗沙 0.5—1 mm | 最小值 | 1.84 | 2.37 | 0.75 | 0.00 | 0.08 | 7.72 | 1.00 | 7.95 | 最大值 | 9.55 | 5.35 | 5.80 | 14.05 | 2.36 | 29.08 | 1.15 | 25.64 | 平均值 | 5.57 | 4.05 | 3.46 | 4.68 | 1.22 | 20.52 | 1.07 | 16.80 | CV/% | 60.75 | 33.13 | 73.54 | 173.21 | 132.02 | 40.07 | 9.90 | 74.46 | 极粗沙 >1 mm | 最小值 | 0.22 | 0.00 | 0.00 | 0.00 | 0.00 | 2.82 | 0.00 | 5.15 | 最大值 | 6.01 | 1.63 | 3.06 | 22.53 | 0.00 | 15.60 | 0.18 | 14.76 | 平均值 | 3.12 | 0.44 | 1.11 | 7.51 | 0.00 | 10.18 | 0.09 | 9.95 | CV/% | 69.20 | 178.71 | 153.75 | 173.21 | 0.00 | 50.56 | 141.42 | 68.41 |
|
|
|