摘要
以GIS技术为依托,用指数法评价了贵州省46个县(市)农业土壤的环境质量,土壤样本1820组。结果表明,贵州省农业土壤重金属污染已经相当严重,综合污染指数为11.8。花溪、清镇、安顺、水城和丹寨属于As重污染区;修文、安顺属于Pb重污染区;Cd的污染情况普遍严重;Cr的污染相对较小;Hg除了铜仁市属于重污染区外,其余市(县)污染均较小。
1820 soil samples from 46 counties （cities） in Guizhou were determined to evaluate the environment quality of agricultural soils by the index method on the basis of GIS, The results show that the heavy metal pollution of agricultural soils in Guizhou is quite serious and the index of integrated pollution is up to 11.8. The polluted situation of Cd is universally serious and the pollution of Cr is relatively lower. Tongren belongs to heavy pollution of Hg. Huaxi, Qingzhen, Anshun, Shuicheng and Danzhai belongs to the heavy polluted areas of As, Xiuwen and Anshun belongs to the heavy polluted areas of Pb.
出处
《贵州农业科学》
CAS
2006年第1期15-17,共3页
Guizhou Agricultural Sciences
基金
贵州省长基金项目(黔科教办(2003)04号)
关键词
GIS
贵州省
土壤
重金属
环境评价
GIS
soil
heavy metal
environment evaluation
Guizhou
