地理科学 ›› 1991, Vol. 11 ›› Issue (3): 253-260.doi: 10.13249/j.cnki.sgs.1991.03.253

• 论文 • 上一篇    下一篇

环境质量区域分异模式的建立——以上海市川沙县为例

刘幼慈, 应龙根   

  1. 华东师范大学地理系, 上海
  • 出版日期:1991-05-20 发布日期:1991-05-20

MODELLING ON THE REGIONAL VARIATION OF ENVIRONMENTAL QUALITY

Liu Youci, Ying Longgen   

  1. Department of Geography, East China Normal University, Shanghai
  • Online:1991-05-20 Published:1991-05-20

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。

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 environmental quality are founded.Secondly,6 environmental quality’s indexes are composed into 4 principal components having important envirohmental 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 environmental pollution is described.