矿产保护与利用Issue(1)：54-58,5.DOI:10.13779/j.cnki.issn1001-0076.2015.01.012
南京某铁尾矿库复垦土壤重金属污染评价
Evaluation on Reclaimed Soil Heavy-metal Pollution of the Closed Tailings Reservoir
摘要
Abstract
In order to safeguard the ecological security of reclaimed tailings reservoir and research the pollution characteristics of heavy metals in reclaimed soil, soil samples of a closed tailings res-ervoir were collected and quantitatively analysed.Then reclaimed soil heavy-metal pollution eval-uation and vertical analysis of heavy-metals( Cd, Cr, Cu, As, Hg, Ni and Pb) were conducted. The results of single factor index method showed that the content of seven heavy-metals in the re-claimed soil were all above the background values of the adjacent area which were not affected by activities of mining(exceed ratio between 0.02~12.71), the content of Cd, Ni and Pb were also above the background value of Jiangsu province(exceed ratio between 0.05~11.28), and Cd was the only metal which slightly above the third grade national soil standard( exceed ratio between 0 .05~0 .54 ) .The results of Nemerow multifactor index method showed that the content of heavy metal were all above the soil background value of adjacent area,thus belong to heavy pollution.From the results of vertical distribution,it could be seen that the content of heavy metals were increased with the depth;the content of five elements all above the soil background value of adjacent area except Cu and Ni, which indicated that the heavy metals were accumulated and migrated to the top of re-claimed soil.关键词
尾矿库/复垦/土壤/重金属污染/评价Key words
tailing reservoir/reclamation/soil/heavy-metal pollution/evaluation分类
资源环境引用本文复制引用
毛香菊,邹安华,马亚梦,肖芳,冯安生,徐承炎,孙体昌..南京某铁尾矿库复垦土壤重金属污染评价[J].矿产保护与利用,2015,(1):54-58,5.基金项目
中国地质调查局地质调查工作项目 （）
