基于空间变异分析的土壤重金属复合污染研究

通过对国内外农田土壤重金属复合污染研究现状的综合分析表明，目前的研究热点包括定量分析重金属复合污染过程的时空变化规律及其影响因素，以及建立区域重金属复合污染环境风险的敏感指标体系和快速测定方法。针对东南沿海区的重金属复合污染问题，需要从“面”尺度对区域污染过程进行空间分析，结合“点”尺度的微观过程研究，加强时空演变过程的定量分析，利用遥感等技术的发展建立环境风险的快速分析评价方法，为区域环境质量的评价、预测与调控提供理论依据。

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

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.