基于主成分分析的萍乡市水资源承载力评价

Evaluation of Water Resources Carrying Capacity in Pingxiang Based on Principal Component Analysis

前人研究发现未来10年内萍乡市因水资源问题造成的经济损失高达2亿。通过统计江西省萍乡市2010-2016年的水资源数据资料,选取16个相关指标构建影响萍乡市水资源承载力的综合评价指标体系,以深入了解萍乡市水资源对当地发展规模的承载情况。运用SPSS.20对水资源数据进行主成分分析,提取出三大主成分对萍乡市水资源承载力进行综合评价。结果表明:各个主成分得分与综合得分之间差异极其显著(P<0.01);2010-2016年萍乡市水资源承载力起伏较小,呈现下降趋势;其主要与社会经济发展和水资源管理有关。

Previous studies have found that the economic loss caused by water resources in pingxiang city in the next 10 years is as high as 200 million yuan. Based on the data of water resources in pingxiang city,jiangxi province from 2010 to 2016,16 relevant indexes were selected to construct a comprehensive evaluation index system affecting the carrying capacity of water resources in pingxiang city, so as to deeply understand the carrying capacity of water resources on the local develop ment scale. Principal components of water resources data were analyzed by SPSS. 2 0 , and three principal components were extracted for comprehensive evaluation of water resources carrying capacity of pingxiang city. The results showed that there were significant differences between the scores of principal components and composite components( P < 0. 001). From 2010 to 2016,the water resource carrying capacity of pingxiang city fluctuated slightly and showed a declining trend. And it is mainly related to social and economic development and water resources management.