太谷县蔬菜大棚土壤重金属污染及生态风险评价  

Ecological Risk Assessment and Heavy Metal Pollution of Vegetable Greenhouse Soils in Taigu County

作　　者：刘子姣[1] 李廷亮[1] 田源[1] 

机构地区：[1]山西农业大学资源环境学院,山西太谷030801

出　　处：《山西农业科学》2015年第1期58-60,共3页Journal of Shanxi Agricultural Sciences

基　　金：山西省青年自然基金项目(2013021027-1)

摘　　要：为揭示蔬菜大棚土壤中重金属污染情况,采集太谷县32个蔬菜大棚土壤样品,对其重金属元素含量做出分析,并进行了生态风险评价。结果表明,各重金属元素污染指数平均值由高到低顺序依次为：Hg〉Zn〉Cr〉As〉Cd〉Pb〉Cu;综合潜在生态风险指数范围为122.01~313.19,平均值为188.69,属于中等危害水平,其中,Hg是主要的污染因子,应引起足够重视。To reveal the heavy metal pollution situation of vegetable greenhouse soil, this paper collects 32 pieces vegetable greenhouse samples of Taigu county, analyses heavy metal element and ecological risk assessment. The results show that pollution index average value of the heavy metal elements from high to low order is Hg Zn Cr As Cd Pb Cu; comprehensive potential ecological risk index range is 122.01- 313.19, average value is 188.69, which belongs to medium damage level. Hg is the main pollution factor, should cause enough attention.

关 键 词：太谷县 蔬菜大棚土壤 重金属 生态风险 

分 类 号：X53[环境科学与工程—环境工程]