白银市区土壤作物系统重金属污染分析与防治对策研究  

Research on the soil-crop system pollution of trace metals and its control strategies in the suburb of Baiyin city

作　　者：南忠仁[1] 李吉均[2] 张建明[2] 程国栋[1] 

机构地区：[1]中科院寒区旱区环境与工程研究所冻土工程国家重点实验室,兰州730000 [2]兰州大学地理科学系,兰州730000

出　　处：《环境污染与防治》2002年第3期170-173,共4页Environmental Pollution & Control

基　　金：国家自然科学基金重点项目 (4 973 10 10 );甘肃省环保科技项目 (98-8)资助

摘　　要：通过对白银市区土壤作物系统重金属含量与分布变化特征的调查分析 ,结果表明 ,只有东大沟污灌区土壤作物污染严重 ,Cd、Pb超标明显 ;西大沟清污混灌区土壤环境为轻度污染 ,但作物质量符合标准要求 ;其余灌区土壤作物质量符合标准要求。最后 ,根据土壤作物重金属含量分布变化特征 ,提出了相应的防治对策。The contents and distribution of heavy metal pollutants in soil\|crop system in the suburb of Baiyin city were discussed. The result showed that the heavy contaminated region was the lands irrigated with wastewater in Dongdagou basin, and the contents of Cd and Pb in soil\|crop system were many times more than the standards, the light polluted region was the lands irrigated with the mixture of waste and fresh water in Xidagou basin, and the selected metal contents in crops were less than the standards, the soil\|crop systems in the rest lands were clean. Finally, some suggestions to control the pollution and remedy the soil environment were put forward.\;

关 键 词：白银市区 土壤 作物系统 重金属污染 防治对策 

分 类 号：X53[环境科学与工程—环境工程]