摘要
通过实地调查和室内分析,研究了红透山铜矿区土壤重金属含量状况,并采用单因子指数法和内梅罗指数法对红透山铜矿区土壤重金属污染程度进行评价。研究结果表明,该研究区土壤Cu、Zn、Pb、Cd平均含量高于当地土壤背景值,其中,土壤已受Cu、Cd重污染,Zn为轻污染,Pb为安全。不同区域土壤重金属含量存在较大差异,各片区重金属综合污染递降顺序依次为:尾矿区>选矿区>采矿区>周围农田区。
Though first-hand investigation and laboratory analysis, the text studied the heavy metals content status of soil in Hongtou Mountains copper ore areas, and adopted single-factor pollution index method and Nemerow integrated factor pollution index method to evaluate the heavy metals contaminated degree of soil in Hongtou Mountains copper ore areas. The findings indicated that average content of copper, zinc, lead, cadmium in the studied areas exceeds the background value of the local soil, and the soil is seriously contaminated by copper and cadmium, at the same time the contaminated degree of zinc is light pollution, but the content of lead is in safe grade. The content of the heavy metals of soil in different areas exists large differences. The descending order of the composite contaminated degree of heavy metals of soil in every areas is gangue areas〉 mill run areas〉mining areas〉surrounding farmland areas.
出处
《中国农学通报》
CSCD
2006年第11期364-367,共4页
Chinese Agricultural Science Bulletin
基金
国家重点基础研究发展规划项目"典型城区与矿区水-土-气界面污染过程及生态风险"(2004CB418504)部分内容
关键词
矿区土壤
重金属
污染指数
评价
Diggings soil, Heavy metals, Contamination index, Evaluate
