摘要
研究评价徐州市北郊农业土壤重金属污染状况结果表明,该区农业土壤中Cu、Cd、Pb、Zn和Cr 5种重金属平均含量均高于土壤背景值,其农业土壤Cd、Cr为重污染,土壤Zn为污染警戒级(尚清洁水平),其他2种元素为安全级(清洁水平),其综合污染指数为Cr>Cd>Zn>Cu>Pb。
The situation of soil contamination with heavy metals in agricultural soil in the northern suburb of Xuzhou City was studied. The results indicate that the average contents of heavy metals（Cu, Cd, Pb, Zn, Cr） in the soil exceed the background values. The soil has been seriously contaminated with Cd and Cr, Pollution of Zn is at the warning grade, while others are at the safe-grade. The order of integrated contamination index is Cr〉 Cd 〉 Zn 〉 Cu 〉 Pb.
出处
《中国生态农业学报》
CAS
CSCD
2006年第1期159-161,共3页
Chinese Journal of Eco-Agriculture
基金
教育部博士点专项基金(20030290010)资助
关键词
农业土壤污染
重金属
污染指数
评价
Agricultural soil pollution, Heavy metal, Contamination index, Evaluation
