基于GIS的济宁市水资源承载力的主成分分析

Principal Component Analysis of Water Resources Carrying Capacity in Jining Based on GIS Techniques

基于ArcGIS平台,利用SPSS11.5中主成分分析模块,选取12个水资源承载力评价指标,对济宁市各县(区)2011年的水资源承载力进行了分析与评价。结果表明,梁山、汶上、嘉祥、金乡、鱼台、泗水县及市中区的水资源承载力属于中等水平,而任城、兖州、曲阜、邹城、微山县(区)则已处于水资源承载力脆弱水平,与当地实际情况相符;并分析获得经济发展、城市化是水资源承载力脆弱区的主要成因。

Based on ArcGIS platform, using the principal component analysis module in SPSSll. 5, 12 indexes are se- lected to evaluate water resources carrying capacity of districts in Jining City in 2011. The results show that water re- sources carrying capacity for Liangshan, Wenshang, Jiaxiang, Jinxiang, Yutai, Sishui and central urban area belongs to middle level; but Rencheng, Yanzhou, Qufu, Zoucheng, Weishan are classified into the vulnerable areas of water re- sources carrying capacity; the conclusion is in line with the local situation, we analysed and obtained that the development of the local economy, and the process of urbanization are the main reason for leading to vulnerable areas of water re- sources carrying capacity.