基于分形理论的淮海经济区城市体系研究

淮海经济区位于我国东部沿海地区中段地带,具有良好的区位条件和资源优势,但经济发展却长期相对滞后。本文,首先从时间序列角度定量分析淮海经济区城市体系的城市首位指数。其次运用分形理论从城市体系等级规模结构、空间规模结构两个角度定量测算城市体系分形维数,得出城市体系基本特征:城市首位度不大;城市体系规模等级结构趋于良好的发育状态;城市空间分布格局趋于集中,城市间相互作用趋于加强。最后,从重点建设中心城市、加快培育和发展若干城市带,强化节点城市建设、重点发展大中城市,突出中小城市建设、加快发展全国重点镇和小城镇建设三个层次和角度提出如何加快培育和建设点—线—面相结合、城市体系结构和布局比较合理、城乡协调发展的淮海经济区城镇密集带的发展对策和措施。

A Study of Civic System of Huaihai Economic Zone Basing on Categorization Theory

Huaihai Economic Region lies at the middle zone of the east costal economic belt, it has good location conditions and resource advantages. However, Huaihai Economic Region along has litter development of regional economy. The paper firstly quantitatively calculates the primacy index of the urban system in HuaiHai Economic Region in representative years. Secondly, quantitatively calculate the fractal dimensions of hierarchical structure of urban system and the fractal dimensions of spatial structure of urban system in HuaiHai Economic Region in representative years based on the fractal theory according to these analyses. The paper points out that there are some basic deficiencies in the urban system in HuaiHai Economic Region. Such as the primacy index of the urban system in HuaiHai Economic Region is not too big, the hierarchical structure of urban system is beginning to development. The spatial structure of urban system is logical and together distribute, the capacity of spatial interactions among cities is stringing. And last, the paper correspondingly put forward to the practical and feasible countermeasures and suggestions to accelerate the belt of urban in Huaihai Economic Region concerning to speeding up central cities as a core, to strengthen the belt of urban, to take middle-small cities on stress and perfect the urban system of Huaihai Economic Region etc.