期刊论文

中文

湖北农业科学

0439-8114

2008

47

9

1030-1034

10.3969/j.issn.0439-8114.2008.09.019

国家自然科学基金项目（40671078）

本校为其他机构

对江汉平原后湖地区农田的土壤环境质量和污染状况进行了系统的调研，采用单因子指数、内梅罗综合指数、Hakanson生态风险指数法对研究区Cd、Hg、Cu、Zn、Pb、Ni、As、HCH、DDT进行分析与评价。结果表明，研究区9种单要素污染程度依次为Cd〉As〉Cu〉Zn〉DDT〉Hg〉Cr〉Ph〉HCH，相比较而言，Cd污染为主要污染元素，8个地块已受到Cd的轻度污染，土壤中的农药残留主要成分为DDT；3．81％的农田的综合污染指数大于1（轻度污染），15．59％的农田处在警戒限：研究区潜在生态风险指数整体偏小，除两个地块的Cd属中潜在风险外，其他都属低潜在风险。整体而言，江汉平原农田土壤环境质量属清洁和安全范围...

Forty-two farmland surface soil samples were collected from Houhu Area and analyzed for the concentrations of Cd,Hg,Cu,Zn,Pb,Ni,As,HCH and DDT. Ecological risk and soil environmental quality of farmland were analyzed and evaluated by using single pollution index, the Nemerou synthetical index and Hakanson ecological index. The results indicated that the pollution of Cd was the most serious becaus eight plots were slightly polluted, and the pollation seriousness of other factors was followed by this order Cd〉As〉Cu〉Zn〉DDT〉Hg〉Cr〉Pb〉HCH. DD...