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《Journal of Anhui Agricultural Sciences》 2012-17
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Distribution Rules of Heavy Metals in the Soil of a Typical Oilfield Based on GIS

MENG Chong et al(Resources and Environmental Research Academy,North China Electric Power University,Beijing 102206)  
Based on the application of GIS in the study of soil pollution,the method of geo-accumulation index was used to study the spatial distribution and pollution degree of soil heavy metals in a typical oilfield.The distribution map of heavy metals pollution was drawn by geo-accumulation index interpolation.As indicated by the results,the horizontal distribution of heavy metals differed largely in the study area,but Cr,Fe and Ni had a high similarity in the distribution of geo-accumulation index,and they may have a same source;the distribution of all heavy metals kept stable except Pb,Zn and Ni which had a great variation at different depths;in view of the geo-accumulation level,the pollution of Pb has reached the second and above level at each spot,while that of Cu and Co have reached the first or above level in some spots.The combination of geo-accumulation index and GIS can give a more intuitive reflection of the distribution of heavy metals in the soil.
【Fund】: 国家“十一五”科技支撑项目(2008BAC43B01)
【CateGory Index】: X833
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