统计项目 | 最大值 | 最小值 | 平均值 | 标准偏差 | 变异系数 | 安徽土壤背景值 [21] |
Cu | 17.67 | 2.94 | 9.03 | 3.97 | 44% | 20.4 |
Fe | 58098.36 | 36503.47 | 48909.82 | 5869.56 | 12% | 31,400 |
Zn | 188.99 | 138.60 | 158.04 | 11.49 | 7% | 62 |
Co | 3.70 | 1.37 | 2.45 | 0.73 | 30% | 17.44 |
Ni | 57.33 | 16.60 | 40.24 | 9.55 | 24% | 29.80 |
Cr | 38.03 | 29.69 | 30.02 | 1.95 | 6% | 66.50 |
Mn | 818.76 | 401.63 | 553.20 | 105.90 | 19% | 530 |
Pb | 236.78 | 173.61 | 209.20 | 17.83 | 9% | 26.00 |