城市断裂点公式的改进及应用——以重庆渝东南6区县为例

城市断裂点是指两个城市相互影响区域的平衡点,其计算公式由Reilly的"零售引力规律"发展而得,含有三个参数:城市间的距离和两个城市的质量。对其中的质量参数予以拓展,赋予更广泛的意义,使得该公式的应用范围更宽。并以重庆渝东南6区县为案例,依据改进后的断裂点公式,对经济、社会和基础设施辐射效应进行定量分析。结果表明,渝东南6区县在进一步发展基础设施和提升人口素质的基础上,应以黔江区为中心城市,实现渝东南大区域内的协调发展。

Improvement and Application of Urban Breaking Point Formula:Taking the 6 District of Southeast Chongqing

The breaking point refers to the balance point of the two cities, and the breaking point formula is developed by Converse’s "retail gravitational law", which contains three parameters: the distance between cities, and the quality of two cities. We extend the quality parameters, and giving a more extensive significance, especially making the application of this formula more extensive. Based on the improvement breaking point formula, taking the 6 district of Southeast Chongqing as example, quantitative analysis is made on the economic radiation effect, the social radiation effect, and the infrastructure radiation effect. The results show that, Southeast Chongqing area should be based on the further development of infrastructure and the improvement of population, and Qianjiang District should be taken as the central city to realize the coordinated development in the Southeast Chongqing.