期刊论文

中文

水土保持通报

1000-288X

2012

32

6

235-239

10.13961/j.cnki.stbctb.2012.06.023

湖南省质量监督局2009年标准化研究项目“湖南洞庭湖区重金属污染菜田土壤修复技术的标准化研究” 湖南农业大学***科学基金项目（06YJ31）

本校为第一机构

采用单项污染指数和综合污染指数法对湖南洞庭湖区典型蔬菜土壤Cd,Cu,Zn,Pb含量状况进行了评价。结果表明,与湖南省潮土土壤背景值相比,土壤Cd,Cu和Zn含量明显富集,Pb含量总体不高。与国家土壤质量二级标准（GB15618-1995）相比,洞庭湖区蔬菜土壤以Cd污染为主,其次是Zn和Cu。Pb含量没有超标,其中湘阴县、沅江市、资阳区和赫山区蔬菜土壤环境质量为轻度污染,华容县处于警戒水平,需要修复治理或者改变土地利用方式。君山区和南县蔬菜土壤为清洁水平,适宜发展无公害蔬菜。污染风险高的区域土壤Cd,Cu和Zn之间存在极显著或显著正相关关系,但相关性弱。

The contents and potential pollution risks of Cd,Cu,Zn and Pb were studied in vegetable soil around Dongting Lake in Hu′nan Province.The results showed that the contents of Cd,Cu and Zn in top soil were higher than the background values,while Pb contents were lower.With single pollution index and comprehensive pollution index,the ascending order of the risks of heavy mental pollution was CdZnCu in vegetable soils.Pollution of Pb was not found in the whole study area.Based on the pollution index and comprehensive pollution index of soil heavy m...