摘要
探讨应用主成分分析法对影响重庆自然灾害易损的社会因素进行分析,构建主要成分和确定权重,再利用GIS技术对灾害的社会易损度进行综合空间分析计算,并按照社会易损程度把重庆的40个区县分成了5类区域。最后,对此类灾害研究方法存在的问题进行了讨论。
The paper discusses the application of principle component analysis method to study the social factors, which affects the social vulnerability of Chongqing natural disaster, making the principle component and asserting the weight, then make use of GIS to analyse the vulnerability of natural disaster, besides, divide 40 administrative area of Chongqing into 5 kinds area of vulnerability. At last, discuss the problem of the study method for disaster.
出处
《水土保持研究》
CSCD
北大核心
2007年第6期319-322,325,共5页
Research of Soil and Water Conservation
基金
国家社科基金“自然灾害的社会易损性研究——以重庆市为例”项目(06XSH017)
关键词
主成分分析法
GIS
社会易损性
重庆
the principle component analysis method
GIS
social vulnerability
Chongqing
