%0 Journal Article
%T Heavy metal concentrations and pollution assessment of edible crops grown on restored manganese mine lands in Guangxi, South China<br>广西锰矿恢复区食用农作物重金属污染评价
%A LAI Yan-ping
%A LI Ming-shun
%A YANG Sheng-xiang
%A CHEN Chun-qiang
%A <br>赖燕平
%A 李明顺
%A 杨胜香
%A 陈春强
%J 应用生态学报
%D 2007
%I 
%X A survey on the crops grown on the restored manganese mine lands in Pingle and Lipu of Guangxi was conducted, and the heavy metal concentrations in the edible parts of the crops were analyzed. The results showed that the heavy metal concentrations in the crops were 1.18-20.46 mg x kg(-1) for Zn, 0.52-16.16 mg x kg(-1) for Pb, 0.33-6.62 mg x kg(-1) for Cr, 0.01-6.24 mg x kg(-1) for Cu, and 0.01-2.76 mg x kg(-1) for Cd. Among the crops, beans had the highest concentrations of almost all test metals, followed by potatoes. The assessment of single factor pollution indices indicated that in the main, the crops were not polluted by Zn and Cu, but heavily polluted by Pb, Cr and Cd, with the pollution rate being 100%, 96.9% and 75.0%, respectively. Comprehensive pollution index indicated that all the crops were polluted by heavy metals, with the heavy, medium and light pollution grade being 87.5%, 9.4% and 3.1%, respectively. Planting edible crops directly on manganese mine wastelands might have great risk for human health, and the existing restoration patterns should be reconsidered.
%K restored manganese mine land
%K crop
%K heavy metal concentration
%K single pollution index
%K comprehensive pollution index<br>锰矿恢复区
%K 农作物
%K 重金属含量
%K 单因子污染指数
%K 综合污染指数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=1C8DEE7420A656DC&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=5D311CA918CA9A03&sid=11CC1479731B5118&eid=6C44E62EE1A19DA5&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=7&reference_num=21