规模结构视角的浙江省城市体系演化分析

Analysis: Evolution of urban system in Zhejiang province from the perspective of scale structure

基于浙江省县域单元城市人口数据,运用位序—规模法则、分形理论、GIS等计量方法从时、空间角度分析浙江省城市规模体系演化特征.研究结果表明,(1)浙江省城市规模结构总体不断调整优化,问题在于特大城市、大城市数量稍显不足;(2)浙江省城市规模体系发育经历了小城镇快速发展和大城市加速发展两个阶段,杭州市的首位度也呈现出下降和上升两个阶段;(3)空间演变上,沿海和内陆城市区域差异显著;环杭州湾地区、温台沿海地区、金华—义乌地区日益显现出圈层集聚特性.

The urban scale structure has a direct impact on the distribution of the urban resources. Based on the data on a variety of county population in Zhejiang Province, analysis is conducted using sequence size rule, fractal theory and GIS on the evolution characteristics of urban scale system. The research is carried out from the aspects of space and time. Results suggest that：（1） The city scale structure is in constant optimization process, but the number of large cities does not stay stable.（2） The development scale of urban system has experienced two stages： Rapid development of small towns and accelerated development of large cities. Hangzhou City, for example, also experienced up and down during the development period.（3） Coastal and inland urban areas are significantly different in spatial evolution. The area of Hangzhou Bay, Wen-Tai coastal area and Jinhua-Yiwu area are more and more manifesting the characteristics of circle gathering effect.