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Combined Pollution of Heavy Metal in Soil Based on Spatial Variation Analysis

SUN Bo 1 ,ZHOU Sheng-lu 2 ,ZHAO Qi-guo 1,2 (1.Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China;2.Department of Urban and Resources Sci-ences,Nanjing University,Nanjing210093,China)  
Combined soil heavy metal pollutio n is an important problemfacing to th e research and protection of agro -en vironment in rapidly developing region of China.According to the advance in domestic and international research,the hotspots include the quantitatively analyzing the spatio -temperal change of combined soil heavy metal pollution and its influen ce factors,and building up sensitive indicator system and fast mensuration method for the environm ental risk evaluation.Taking the re gional environmental risk as a cardinal starting point,and hig hlighting the coast region in the Sou theast China,future research shoul d address the quantitative analysis of space and time processes of the combined soil heavy metal pollution with the spatial analysis at th e region scale combined with micro -research at the spot scale,and the fast mensuration methods f or the environmental risk with such n ew technology as remote sensing,which will benefits the evaluation,prediction and management of regional environment quality.
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