露天煤矿复垦土壤重金属污染及生态风险评价--以平朔安太堡露天矿区为例  

Evaluation on Potential Ecological Risk of Heavy Metal Pollution in Reclaimed Soil of Opencast——Taking Pingshuo Opencast Mine as an Example

作　　者：葛元英[1] 崔旭[1] 白中科[2] 

机构地区：[1]山西农业大学资源环境学院,山西太谷030801 [2]中国地质大学北京土地科学技术学院,北京100083

出　　处：《山西农业大学学报（自然科学版）》2008年第1期85-88,共4页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金：国家自然科学基金项目(40071077:40471132)

摘　　要：在平朔安太堡露天煤矿排土场设点对复垦土壤中的Hg、As、Cr、Cd、Pb进行含量分析,并用单因子指数法评价土壤污染程度,用Hakanson生态风险指数法对土壤潜在的生态风险进行评价。结果表明:安太堡露天煤矿排土场局部地区Cd超过GB15618-1995一级标准;从总的污染程度看,各污染物从大到小的顺序为:Cd>As>Pb>Cr>Hg,从总的潜在生态危险程度看,各个点位的风险程度从高到低依次为:二铺>南排1335>西排1475>南排1420>南排南1000 m>西排1460>西排1445。Through analyzing the contents of typical pollution（Cr,Hg,As,Cd and Pb） in dump of ATB opencast mine and adopting single Factor Index and Ecological Risk Index,soil quality and potential ecological risk were evaluated,the content of Cd exceeded nature background value（GB15618-1995） in some district of ATB opencast mine,the order of typical heavy metal pollution extent was Cd〉As〉Pb〉Cr〉Hg,the sequence of potential ecological risk was erpu dump 〉 south dump 1335〉 west dump 1475 〉south dump 1420〉 south of south dump 1000 m〉west dump 1460〉west dump 1445.

关 键 词：安太堡露天煤矿 土壤污染 重金属 生态风险 

分 类 号：X826[环境科学与工程—环境工程]