基于分形理论的云南省城镇体系研究

Yunnan Province Urban System Research Based on Fractal Theory

基于分形理论,利用云南省16个地级市州的人口数据及地市州间的距离数据,对云南省城镇等级规模结构和空间结构进行研究.研究结果表明:云南省城镇体系等级规模结构属于首位型分布,规模较大的中位城镇发育不完善,近似于低水平等级规模结构均衡的格局;云南省交通网络状况较差,城镇空间关联性较弱,分布较为分散.研究结果可以为云南省城镇体系优化布局和经济发展提供科学依据.

Based on the fractal tlieor}^ and the use of the state population database of 16 cities Yunnan prov-ince and the distance between cities and states, the paper studies the urban and town grade scale structure and spatial structure. The results show that urban system hierarchical size structure in Yunnan province belongs to the first type distribution and the larger cities is immature, which is similar to the pattern of the low level scale equi-librium structure, the traffic network condition is bad and the correlation between urban and towns is weak whose distribution is scattered. The result of the study can provide scientific basis for cities and towns system layout op-timization and economic development system layout of the Yunnan province.