吉林省城镇体系地域空间结构研究

Study of Regional Spatial Structure of Town System in Jilin Province

运用分形理论对吉林省城镇体系地域空间结构的聚集维数、网格维数和关联维数进行测算和分析,表明吉林省城镇体系地域空间分布是分形的。以长春市周边城镇为研究对象,各城镇的空间分布比较均匀;近似于几何中心的长春市表现出了较好的聚集形态,表明吉林省城镇体系是以长春市为聚集中心进行自组织演化的;以省内28个主要城镇为研究对象,吉林省城镇体系在空间分布上比较分散,空间关联度较弱;以省内50个城镇为研究对象,城镇分布的总体均衡性适中。据此,提出了优化吉林省城镇体系地域空间结构的建议。

Based on the analysis of the status of regional spatial structure of the town system in Jilin Province, the authors calculated the aggregation dimension, grid dimension and correlation dimension which revealed the spatial structure character of town system in Jilin Province with the fractal theory and method. Three aspects of the features for town system spatial structure in Jilin Province were studied, proving that the regional spatial structure in this region had fraetal characteristics. Firstly, the distribution of some towns system around Changehun was concentrative. The fractal dimension ealeulafions indicated that the town system showed the evolution of self - organization around Changehun City center. Secondly, in the spatial distribution system of Jilin Cities was more dispersed and less space correlation based on the study for 28 eities in Jilin Province. The character of general equilibrium for the towos in state of the general based on the study for 50 cities in Jilin Province. At present, great attention should be paid on development of some important market towns that may lead to harmony development in the whole area.