基于PCA的江苏省城市化发展水平综合评价*

Comprehensive Evaluation of Urbanization Development Level in Jiangsu province Based on Principal Components Analysis

摘要:

根据城市化的本质内涵,构建了一套可量化的城市化水平评价指标体系,运用变差系数和主成分分析法(PCA)方法对江苏省城市化发展水平进行综合评价,并分析显著影响城市化水平的若干因素。研究结果表明：江苏13个城市的城市化水平具有较大差异,苏南城市化水平较高,苏北城市化水平较低,苏中城市介于两者之间；经济实力对城市化影响最大,潜在实力、发展能力、人口素质和生态环境协调能力也具有重要作用。

关键词:城市化;城市化评价指标体系;变差系数;主成分分析

Abstract:

According to the essential connotation of urbanization, we establish a commercial evaluation index system of urbanization. Comprehensive evaluation of urbanization and factor analysis on urbanization development level are conducted with the methods of variation coefficient and principal component analysis. The results show that, the urbanization development level in 13 cities in Jiangsu are different: Level of Southern region is higher, northern region is lower, and level of central region is between southern and northern region; Economic strength has the greatest impact on urbanization; The potential strength , development capacity, population quality and the environment also play an important role in urbanization.

Key words:Urbanization; evaluation index system of urbanization; variation coefficient; PCA