【摘要】 城市中心性是指一个城市为它以外地方服务的相对重要性 ,是用以衡量城市中心地位高低的重要指标。长期以来 ,国内学术界对“中心性”的理解和应用存在偏差 ,有必要对中心性的概念和方法进行专门研究。文章在明确中心性概念 ,回顾国内外中心性相关研究的基础上 ,根据城市统计资料 ,利用最小需要量和主成分分析法 ,对 1997年全国 2 2 3个地级以上城市的中心性等级体系进行了实证研究。最后根据城市中心性指数的高低 ,把我国城市划分为五级体系。更多还原

【Abstract】 As an important concept of urban geography, urban centrality means the relative importance of a city as the provider of central goods and service in excess of the needs of its own residents. The concept of centrality is widely used in the study of cities system. But in China, there are some mistakes in the application of centrality for the lack of no special study. In view of this, the paper gives a thorough clarification to urban centrality and does a case study on the cities system of China. The paper firstly clarifies the concept of centrality, and gives a review to the theory studies of it home and abroad. After a brief comparison to the study methods of centrality, this paper selects the employment personnel as the measurement of urban centrality and constructs a series of centrality index system including 9 items based on China’s statistical datum in 1997. By the method of the smallest demand quantity, the paper calculates the centrality index of each industry, then works out the general centrality index of 223 cities through factor analysis. According to the results, China center cities are divided into five degrades, which are national cities, regional cities, provincial cities, etc.更多还原