西南经济核心区中心城市城镇化结构质量比较分析--以成都、重庆为例

Comparative Analysis on the Quality of Urbanization Structure of Central Cities in Southwest Economic Core Area of China:Taking Chengdu-Chongqing as Examples

运用耦合协调模型和基于主成分的多元线性回归法,对2005—2017年间中国西南经济核心区中心城市成都和重庆的城镇化结构质量及其驱动力展开对比分析。结果表明:(1)重庆与成都的城镇化结构质量整体水平较高且在持续增长中;成都的城镇化结构质量明显高于重庆,这与因地形、发展阶段、城市定位而限定的重庆"主城区现代化大都市+非主城区广大农村地域"、成都现代化都市圈的空间结构组织形式密切相关;(2)城镇化驱动因子呈现多元化、阶段性与差异性特征,行政力和市场力起主要作用;其次是内源力和外向力,但外向力正处在一个不断弱化的过程,反映中国城镇化发展的内生性特征;(3)基于取平均值的城镇化子系统及其系统耦合协调性分析,可有效避免当前城镇化耦合分析中因各子系统指标选取个数不等而带来的失真、不准确问题。

The quality of urbanization structure based on the orderly coordination and coupling of internal systems is an important basic component of urbanization quality, which should be included in the existing urbanization quality analysis framework that based on urbanization development benefits. The former is called the foundation and supporting urbanization Quality Ⅰ, the latter is called the benefit of urbanization quality Ⅱ,which is mutually causal. Based on the perspective of urbanization structure quality, this article uses the improved coupling coordination model to comparative analysis the urbanization structure qualities and their driving forces between Chongqing and Chengdu that are the core cities of Southwest Economic Core Area(Chengdu-Chongqing urban agglomeration area) from 2005 to 2017, in order to provide a reference for the integrated construction of the “Chengdu-Chongqing Twin Cities Economic Circle”. The results show: 1) The qualities of urbanization structure in Chongqing and Chengdu are relatively high, and their are continuously in growing,and Chengdu ’s urbanization structure quality is significantly higher than that of Chongqing. Which is closely related to the spatial organization structures formed by topography, development stage, and urban positioning,of Chongqing ’s “modern metropolis in the main urban area + vast rural areas in non-main urban areas” spatial organization structure and Chengdu’s modern metropolitan spatial organization structure. 2) The driving factors of urbanization show the characteristics of diversification, stages and differences. In which, the administrative force and market force played important roles during the period, and followed by the internal forces and the external forces, while the external forces in the whole process is continuous weakening, reflecting that China’s urbanization is an endogenous development progress. 3) Based on the average values of the urbanization subsystem and its system coupling and coordination analysis, can effectively avoid the distortion and inaccuracy caused by the differences in index selection of each urbanization subsystem. Finally, this article puts forward some suggestions for the urbanization sustainable of the two cities.