四川省土地生态安全评价

摘要

21 indices were chosen from the aspects of natural conditions, social conditions, economic conditions and control conditions. Ecological security situation of 21 areas in Sichuan Province was studied by adopting Principal Component Analysis. On this basis, the ecological security situation of 21 areas was classified objectively by Cluster Analysis.%从自然、社会、经济和治理条件4个方面选取了21个指标,运用主成分分析法研究了四川省21个地区的生态安全情况.在此基础上,通过聚类分析对各地区的生态安全情况进行了客观分类.