【摘要】 本文以上海市川沙县为例,选取6个环境要素作为区域环境质量的指标系列。应用主成分—聚类分析法建立环境质量的区域分异模式。把川沙县27个乡(环境单元)划分成6类并对环境污染特征作出描述。更多还原

【Abstract】 The model of the regional varation of environmental quality in Chuansha County is established with the method of principal component —cluster analysis.First,selecting the environmental quality’s separate indexes of 6 environmental elements,the target series of regional en- vironmental quality are founded.Secondly,6 environmental quality’s indexes are composed into 4 principal components having important en- virohmental significance through the principal component analysis.And 4 principal component scores are regarded as new data of cluster analysis. Finally,27 villages are divided into 6 types through system cluster with the method of sum of squares of deviations.The features of environ- mental pollution is described.更多还原