摘要
为研究黔中薯蓣种植区土壤重金属污染情况,对土壤中Cd、Hg、As、Pb、Cr、Cu等6种重金属进行测定;主要采用单因子污染指数法和综合污染法对土壤重金属污染情况进行评价。研究结果表明8个采样点土壤中6种重金属的单因子污染指数和综合污染指数分别小于1.0和0.7,显示土壤重金属污染等级为安全,但样品中Cr含量较高,成为一种新的污染源。
In order to research the soil heavy mental pollution in the Dioscorea japonica Thunb from Qianzhong planting soil,the amount of Cd,Hg,As,Pb,Cr and Cu in the soil were analyzed;the pollution degree was analyzed and assessed by using the single pollution index,the composite pollution index.Single pollution indexes and comprehensive pollution indexes of 6heavy metals in 8main plantation areas were all lower than 1.0and 0.7,respectively.The conclusion noted that pollution grade of these soils was safe.The single pollution index of Cr is the highes.The main polluted heavy metals in soil were Cr.
出处
《安顺学院学报》
2017年第1期119-123,共5页
Journal of Anshun University
基金
贵州省科学技术厅
安顺市人民政府
安顺学院联合科技基金资助项目(黔科合J字LKA[2012]05号
LKA[2013]06号)阶段性成果
关键词
黔中薯蓣
土壤
重金属
Dioscorea japonica Thunb from Qianzhong
soil
heavy metals
