上海农业学报2011，Vol.27Issue(3)：89-93,5.
北京郊区小尺度农产品产地土壤重金属污染性评价
Assessment of heavy metal pollution of small scale farmland in Beijing suburbs
摘要
Abstract
To evaluate the heavy metal pollution of farmland in Beijing suburbs, the vegetable farm,grain field and orchard along the Jingcheng Expressway were investigated in terms of the index of geo-accumulation(Igeo)and the potential ecological risk index (RI). The Igeo evaluation result indicated that Zn was the most serious pollution element on the vegetable farm,the Igeo was 0. 17,and the vegetable farm was at a low or medium pollution level; Cu was a main pollution element in the grain field,the Igeo was 0.6,and also the grain field was at a low or medium pollution level; Hg was a main pollution element in the orchard which was at a medium pollution level. The RI evaluation result showed that the vegetable farm was 84.3 in potential ecological risk factor(Ei)of Cd,being at a heavy ecological risk level; the grain field was at a low ecological risk level in terms of all heavy metal elements; but the orchard was 196.5 in Ei of Hg,reaching the most heavy ecological risk. The descending order of heavy metal pollution levels was orchard>vegetable farm>grain field,and the soils of those three kinds of farmland were respectively at medium,low and low pollution levels.关键词
农地/重金属污染/地积累指数/潜在生态危害指数/污染评价Key words
Farmland/ Heavy metal pollution/ Index of geo-accumulation/ Potential ecological risk index/ Pollution assessment分类
资源环境引用本文复制引用
尤冬梅,王纪华,马智宏,潘立刚,韩平,陆安祥..北京郊区小尺度农产品产地土壤重金属污染性评价[J].上海农业学报,2011,27(3):89-93,5.基金项目
国家高科技技术研究发展专项(2008AA100803) （2008AA100803）
北京市科委课题京产大宗农产品质量检测与监测科技支撑工程(Z09090001040000)资助 （Z09090001040000）
