黔西北地区土壤重金属地球化学背景及管理目标值
|
孟伟, 莫春虎, 刘应忠
|
Geochemical background and management target values of heavy metals in soil in northwestern Guizhou Province
|
MENG Wei, MO Chun-Hu, LIU Ying-Zhong
|
|
表2 黔西北不同地质单元风化土壤重金属含量特征及管理目标值
|
Table 2 Heavy metal content and management target value of weathered soil in various geological units in northwest Guizhou
|
|
元素 | 成土母岩地 层单元 | 剔除前 | 剔除后 | 变化范围/10-6 | 数据类型 | 管理目标值/ 10-6 | 平均值/10-6 | 离差 | 最小值/10-6 | 最大值/10-6 | 平均值/10-6 | 离差 | As | 三叠系 | 17.1 | 7.9 | 2.08 | 43.3 | 16.9 | 7.6 | 1.2~33.0 | 正态 | 33 | | 二叠系 | 11.2 | 2.0 | 1.42 | 167.1 | 10.1 | 1.8 | 2.72~45.8 | 对数 | 45.8 | | 石炭系 | 20.5 | 1.55 | 5.37 | 102.3 | 19.6 | 1.4 | 8.5~49.5 | 对数 | 49.5 | | 寒武系 | 20.3 | 1.52 | 9.73 | 68.8 | 19.5 | 1.4 | 8.8~46.8 | 对数 | 46.8 | | 二叠系中统 | 15.1 | 3.6 | 4.33 | 68.2 | 14.9 | 3.3 | 8.0~22.3 | 其他 | 22.3 | Cd | 三叠系 | 0.206 | 0.16 | 0.052 | 2.348 | 0.191 | 0.062 | 0.067~0.315 | 正态 | 0.315 | | 二叠系 | 0.430 | 0.249 | 0.019 | 5.872 | 0.390 | 0.209 | 0.02~0.927 | 其他 | 0.927 | | 石炭系 | 0.399 | 0.186 | 0.114 | 2.69 | 0.388 | 1.81 | 0.027~0.771 | 对数 | 0.771 | | 寒武系 | 0.197 | 0.045 | 0.091 | 0.548 | 0.195 | 0.045 | 0.107~0.287 | 其他 | 0.287 | | 二叠系中统 | 0.924 | 0.585 | 0.117 | 5.872 | 0.834 | 0.507 | 0.02~2.093 | 其他 | 2.093 | Cr | 三叠系 | 130.0 | 26.6 | 42.72 | 489.3 | 126.4 | 23.0 | 76.7~183.1 | 其他 | 183.1 | | 二叠系 | 158.3 | 1.36 | 74.95 | 396.6 | 156.0 | 1.34 | 85.6~293.0 | 对数 | 293.0 | | 石炭系 | 120.1 | 25.6 | 63.20 | 186.3 | 120.1 | 25.6 | 69.0~171.2 | 正态 | 171.2 | | 寒武系 | 73.9 | 1.18 | 54.67 | 130.9 | 72.5 | 1.14 | 53.1~103.0 | 对数 | 103.0 | | 二叠系中统 | 290.7 | 1.361 | 84.69 | 301.4 | 156.8 | 1.361 | 84.6~290.7 | 对数 | 290.7 | Cu | 三叠系 | 56.2 | 1.5 | 10.4 | 145.8 | 55.6 | 1.5 | 26.2~118.0 | 对数 | 118.0 | | 二叠系 | 129.1 | 66.1 | 15.0 | 315.4 | 129.1 | 66.1 | 0~261.3 | 正态 | 261.3 | | 石炭系 | 41.7 | 17.7 | 14.6 | 163.6 | 40.2 | 12.7 | 14.8~65.6 | 正态 | 65.6 | | 寒武系 | 31.9 | 1.5 | 19.7 | 166.9 | 30.2 | 1.2 | 19.5~46.8 | 对数 | 46.8 | | 二叠系中统 | 87.0 | 49.7 | 15.0 | 263.3 | 85.3 | 46.8 | 0~178.9 | 正态 | 178.9 | Hg | 三叠系 | 0.117 | 0.048 | 0.025 | 0.376 | 0.114 | 0.042 | 0.022~0.212 | 正态 | 0.212 | | 二叠系 | 0.182 | 0.087 | 0.028 | 2.238 | 0.172 | 0.078 | 0.007~0.357 | 其他 | 0.357 | | 石炭系 | 0.155 | 0.054 | 0.025 | 0.391 | 0.155 | 0.054 | 0.047~0.263 | 其他 | 0.263 | | 寒武系 | 0.141 | 0.023 | 0.071 | 2.643 | 0.138 | 0.037 | 0.094~0.187 | 正态 | 0.187 | | 二叠系中统 | 0.267 | 0.062 | 0.036 | 1.091 | 0.262 | 0.06 | 0.143~0.391 | 其他 | 0.391 | Ni | 三叠系 | 56.8 | 1.4 | 14.2 | 115.4 | 56.8 | 1.4 | 28.2~114.6 | 对数 | 114.6 | | 二叠系 | 70.0 | 22.0 | 8.77 | 142.6 | 69.3 | 21.0 | 27.3~109.3 | 正态 | 109.3 | | 石炭系 | 52.8 | 17.4 | 14.0 | 109.0 | 51.5 | 15.6 | 20.3~82.7 | 正态 | 82.7 | | 寒武系 | 37.5 | 1.3 | 27.3 | 75.1 | 35.9 | 1.2 | 24.9~51.7 | 对数 | 51.7 | | 二叠系中统 | 67.5 | 24.6 | 8.77 | 142.6 | 66.0 | 22.6 | 20.8~111.2 | 正态 | 111.2 | Pb | 三叠系 | 29.5 | 7.5 | 12.15 | 54.6 | 29.4 | 7.3 | 14.5~44.6 | 正态 | 44.6 | | 二叠系 | 27.2 | 1.43 | 9.68 | 221.4 | 26 | 1.32 | 16.8~35.9 | 对数 | 35.9 | | 石炭系 | 50.6 | 16.9 | 22.60 | 643.1 | 47.6 | 13.3 | 16.8~84.4 | 其他 | 84.4 | | 寒武系 | 39.1 | 8.3 | 23.85 | 547.6 | 38.8 | 8.3 | 22.4~55.7 | 其他 | 55.7 | | 二叠系中统 | 31.9 | 11.7 | 15.07 | 95.6 | 32 | 9.65 | 8.5~55.3 | 正态 | 55.3 | Zn | 三叠系 | 101.9 | 12.7 | 31.79 | 211.8 | 101.9 | 12.7 | 76.4~127.4 | 其他 | 127.4 | | 二叠系 | 134 | 21.2 | 32.05 | 403.4 | 133 | 21.2 | 91.5~176.5 | 其他 | 176.5 | | 石炭系 | 154.2 | 1.76 | 42.00 | 902.9 | 144.0 | 1.63 | 50.0~475.3 | 对数 | 475.3 | | 寒武系 | 99.1 | 87.4 | 47.05 | 466 | 74.9 | 15.4 | 44.1~105.7 | 正态 | 105.7 | | 二叠系中统 | 136.8 | 42.9 | 32.05 | 275.6 | 135.4 | 40.9 | 51.0~222.5 | 正态 | 222.5 |
|
|
|