基于主成分分析和因子分析的宁夏水资源承载力研究

发布时间：2018-07-23 19:37

【摘要】：为了探求宁夏水资源承载力状况,利用主成分分析法和因子分析法,在分析宁夏2004~2014年水资源承载力状况的基础上,对宁夏5市2013年水资源承载力分水资源支持力、社会经济技术水平和社会生活水平3个方面进行综合考虑,得到宁夏5市的水资源利用状况指数和分级标准。具体得到以下几个结论:(1)2004~2014年间,宁夏水资源承载力仅在2005~2006年有所波动,其余年份两种方法结果一致,11年间保持稳定上升;(2)对于宁夏5市2013年水资源承载力状况,主成分分析结果由大到小排序为吴忠市、银川市、石嘴山市、固原市和中卫市,因子分析结果由大到小排序为吴忠市、银川市、固原市、石嘴山市和中卫市;(3)建立宁夏5市水资源承载力状况分级阈值,主成分分析下吴忠市和银川市的水资源利用状况高,石嘴山市的水资源利用状况中等,固原市和中卫市的水资源利用状况低;因子分析下吴忠市和银川市的水资源利用状况高,其余3市水资源利用状况都较低。
[Abstract]:In order to find out the situation of water resources carrying capacity in Ningxia, using principal component analysis and factor analysis, on the basis of analyzing the water resources carrying capacity of Ningxia from 2004 to 2014, the water resources carrying capacity of Ningxia 5 cities in 2013 was divided into water resources supporting capacity. Three aspects of social economic and technical level and social living standard are considered synthetically, and the index and grading standard of water resources utilization in five cities of Ningxia are obtained. The specific conclusions are as follows: (1) from 2004 to 2014, the carrying capacity of water resources in Ningxia only fluctuated from 2005 to 2006, and the results of the two methods in the other years were consistent with each other for 11 years, and (2) for the status of water resources carrying capacity in five cities of Ningxia in 2013, The results of principal component analysis were ranked from big to small as Wuzhong, Yinchuan, Shizuishan, Guyuan and Zhongwei, and factor analysis from big to small were Wuzhong, Yinchuan and Guyuan. Shizuishan City and Zhongwei City; (3) establishing the classification threshold of water resources carrying capacity in five cities of Ningxia, the water resources utilization of Wuzhong and Yinchuan is high under principal component analysis, and the water resources utilization in Shizuishan is medium. The utilization of water resources in Guyuan and Zhongwei was low, and the utilization of water resources in Wuzhong and Yinchuan was higher than that in other three cities by factor analysis.
【作者单位】：宁夏大学土木与水利工程学院;宁夏节水灌溉与水资源调控工程技术研究中心;旱区现代农业水资源高效利用教育部工程研究中心;
【基金】：国家自然科学基金项目(51169021,51569022)
【分类号】：TV213.4

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