摘要
利用2011年全国大学生数学建模竞赛A题所给数据,通过MAPGIS软件的空间分析功能分别绘制了各重金属的空间分布等值线和表面图。为对该城区不同区域的重金属污染程度进行综合评价,将污染等级分为A,B,C,D,E五级,利用熵值法确定了8种污染物的权重,利用模糊综合评价法对不同区域的的重金属污染程度进行了评价,通过实证分析表明该方法是合理、可行的。
Based on the data of heavy metal content in soils from CUMCM 2011,using the spatial analysis functions of the MAPGIS software,the spatial distribution of various heavy metals contour and surface plots are mapped.In order to evaluate the degree of heavy metal pollution of urban areas in different regions,the level of contamination is divided into five levels,that is A,B,C,D and E.It uses entropy method to determine the weight of the eight kinds of pollutants and then fuzzy comprehensive evaluation method is used to evaluate the characteristics of heavy metal pollution in urban soil.The results show that the method is more scientific and rational.
出处
《计算机工程与应用》
CSCD
2012年第14期220-225,共6页
Computer Engineering and Applications
基金
江苏省高校大学生创新训练计划项目(No.2011126)
泰州市科技发展计划项目(No.2011045)
南京师范大学泰州学院精品课程项目资助
