基于主成分与聚类分析的江西省城市生态环境综合评价

Based on Principal Components and Cluster Analysis of Synthesize Assessment of City Ecological Environment in Jiangxi Province

为了评价江西省城市生态环境状况,选用了城市人口密度、人均居住用地面积等18个指标,通过主成分分析及聚类分析,初步认为环境保障因子、生活影响因子、水资源协调因子、生活空间因子、市政公益因子是影响城市生态环境质量的主要因子;11个城市的生态环境评价结果是:九江市为Ⅰ类城市,新余市、萍乡市、宜春市为Ⅱ类城市,赣州市、上饶市、南昌市为Ⅲ类城市,吉安市、景德镇市、抚州市、鹰潭市为Ⅳ类城市。

The paper has selected city population density and other 17 indexes,and uses the principal components analysis and cluster analysis to synthesize assessment city ecological environment in Jiangxi.Analysis result shows,the environment guarantee factor,life factor of influence,water resource coordinative factor,life space factor and the factor of municipal administration of public welfare are the major factor that affects city ecological environmental quality.The 11 cities assessment result of ecological environmental in Jiangxi province,it should be the Jiujiang is Ⅰ kind of city,Xinyu,Pingxiang,Yichun is Ⅱ kind of city,Ganzhou,Shangrao and Nanchang is Ⅲ kind of city,Ji＇an,Jing De-zhen,Fuzhou and Yingtan is Ⅳ kind of city.