农业工程学报2011，Vol.27Issue(8)：330-337,8.DOI:10.3969/j.issn.1002-6819.2011.08.058
北京市农业土壤重金属污染环境风险等级评价
Risk grade assessment for farmland pollution of heavy metals in Beijing
摘要
Abstract
In order to fully investigate the environmental pollution risks of Heavy Metals and its spatial distribution in Beijing cultivated soils, environmental risk of Cr, Ni, Cu, Zn, As, Cd, Pb and Hg in 1018 soil samples were evaluated using Hakanson potential ecological risk index, and the probability distribution maps of their risk were produced by indicator Kriging method, also their spatial distribution were analyzed. The results showed that the heavy metals' environmental risk of Beijing reached medium level and low level, and the respective samples ratio of low, moderate, severe and very serious risk level was 42.63%, 34.97%, 18.57% and 3.83%. The risks of Cd and Hg were at a higher level, the risks of Cr, Ni, and Zn were relatively slight. Risk probability map indicates that the urban fringe around the city, Daxing, Tongzhou, and Miyun are in the high-risk areas.关键词
土壤污染/重金属/风险评价/Hakanson指数/指示克里格Key words
soil pollution/heavy metals/risk assessment/Hakanson index/indicator Kriging分类
资源环境引用本文复制引用
姜菲菲,孙丹峰,李红,周连第..北京市农业土壤重金属污染环境风险等级评价[J].农业工程学报,2011,27(8):330-337,8.基金项目
“十五”国家科技攻关计划(2004BA617B04):国家科技支撑项目(2006BAD10A06-03,2006BAB15B05) （2004BA617B04）
