Soil ecological risk assessment and spatial differentiation characteristics of Gui'an District
By using geostatistical spatial interpolation to process the soil heavy metal data of Gui'an District,the spatial distribution pattern of soil heavy metals of Gui'an District is obtained,and the risk evaluation of each element is performed according to soil pH environment.The results show that the soil heavy metal pollution index for Gui'an District is 1.054,indicating light pollution.The average pollution index of each heavy metal element is As＞Zn＞Cr＞Hg＞Cd＞Pb.The soil heavy metal complex eco-risk index is 42.26,less than 150,indicating slight eco-risk.The eco-risk index of each heavy metal element is Hg＞As＞Cd＞Cr＞Pb＞Zn.Arsenic presents more serious pollution on the soil environment,and has higher eco-risk index than other elements.
soil heavy metalsecological riskGISGui'an District
万方数据
维普
