Abstract：Wucaiwan open coalmine in the East Junggar Basin in XinJiang was selected as the research region, by measuring the content of soil heavy metal included Zn、Cu、Ni and Cr in different sampling point of research region, we analyzed spatial distribution characteristics and pollution source of heavy metal using multivariate statistical analysis and GIS techniques. Then we explored the causes of heavy metal enrichment through the characteristic of dust fall and DEM, and assessed the soil pollution grade of heavy metal by applying geoaccumulation index and estimated the range of pollution. The results indicate that, the content of copper and nickel in soil have the similar distribution, which comes mainly from soil parent material, and have no close relationship with human activity. The content of zinc, which is of multi-sources, is not only from soil parent material but also from the diffusible coal dust in coal mining. The chromium mainly distributes around the coal mining and human frequent activity, its content comes mainly from the coal dust and human factor. The soil suffer varying degrees of pollution for chromium in the about 7km range from open-pit coal, the maximum extent of the pollution has reached moderate polluted, and the total frequency of pollution is 28%. The pollution levels of each unit in coal have the following relationships: industrial district > mining areas > refuse dump > office and living areas. The continuous enrichment of zinc and chromium is result of the special terrain and the landscape in coal mining region, in addition to the size of coal dust and weather factor.
姚峰, 包安明, 古丽×加帕尔, 阴俊齐, 李长春, 张光胜. 新疆准东煤田土壤重金属来源与污染评价[J]. 中国环境科学, 2013, 33(10): 1821-1828.
YAO Feng, BAO An-Ming, GU Li-×Jia-Pa-尔, YIN Jun-Qi, LI Chang-Chun, ZHANG Guang-Sheng. Soil heavy metal sources and pollution assessment in the coalfield of East Junggar Basin in XinJiang. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(10): 1821-1828.
