基于主成分聚类分析的甘肃省城市生态承载力评价  

Evaluation of Urban Ecological Carrying Capacity in Gansu Province Based on Principal Component Analysis and Cluster Analysis

作　　者：王昀 张文华 WANG Yun;ZHANG Wen-hua(College of Civil Engineering,Longdong University,Qingyang 745000,Gansu;College of Geographical Science and Tourism,Xinjiang Normal Uni Versity,Urumqi 830054,Xinjiang)

机构地区：[1]陇东学院土木工程学院,甘肃庆阳745000 [2]新疆师范大学地理科学与旅游学院,新疆乌鲁木齐830054

出　　处：《陇东学院学报》2021年第5期78-83,共6页Journal of Longdong University

基　　金：2019年甘肃省工业绿色低碳转型升级项目(GGLD-2019-053);2020年陇东学院横向项目(901/901317030504)。

摘　　要：依据城市生态承载力的内涵,选取甘肃省14个市州市区作为研究对象,构建了以资源节约、生态环境、经济发展和社会进步为主的城市生态承载力19个评价指标体系,并采取主成分和聚类分析的评价方法,对2013-2018年甘肃省各市州的生态承载力现状进行评价,结果显示,甘肃省城市生态承载力水平整体偏低,14个市州中仅有6个城市的生态承载力超过全省平均水平,其余8个城市的生态承载力综合得分较低,承载能力相对薄弱。生态承载力综合得分由大到小分别是嘉峪关、兰州、金昌、酒泉、张掖、白银、天水、武威、平凉、定西、庆阳、临夏、甘南、陇南。According to the connotation of urban ecological carrying capacity,14 cities and prefectures in Gansu were selected as the research objects,and 19 evaluation indexes of urban ecological carrying capacity were constructed in four fields,including resource conservation,ecological environment,economic development and social progress.The evaluation method of principal component and cluster analysis was adopted to evaluate the situation of ecological carrying capacity of each city and prefecture in Gansu from 2013 to 2018.The results show that:the overall level of urban ecological carrying capacity in Gansu is low.Only 6 out of 14 cities have higher ecological carrying capacity than the average level of the whole province.The comprehensive score of ecological carrying capacity of the remaining 8 cities is relatively low and the carrying capacity is relatively weak.The comprehensive scores of ecological carrying capacity are Jiayuguan,Lanzhou,Jinchang,Jiuquan,Zhangye,Baiyin,Tianshui,Wuwei,Pingliang,Dingxi,Qingyang,Linxia,Gannan,and Longnan.

关 键 词：甘肃省各市州 城市生态承载力 主成分分析 聚类分析 

分 类 号：X24[环境科学与工程—环境科学] X826