基于分形理论的皖江城市带城镇体系结构研究

Researching on Urban System in Wanjiang Urban Belt Based on Fractal Theory

运用分形理论对皖江城市带城镇体系的规模分布和城镇空间结构进行了具体分析,得出如下结论:在城镇规模分布方面,城市规模结构分布较为集中,中等位序的城市较多,首位城市作用不显著,人口分布低水平均衡;在城镇空间结构方面,城镇之间的空间关联程度、空间相互作用一般,空间布局较分散。在此基础上,提出了未来皖江城市带城镇体系发展的相应对策。

Using fractal theory, a analyse of the hierarchical scale structure and the spatial distribution of Wanjiang Area was done. The results showed that the fractal dimension of size- scale structure indicated that the size-scale structure was convergent,the population distribution was low-level equilibrium,most of cities was small, the first city was not prominent,the Wonjiang Area was attributing primary equilibria,the correlation coefficient R^2 and Zipf index q were increasing gradually, the value of that class size cities in the region of the fractal characteristics was more and more obvious,the first citie（Wuhu） was more powerful,the fractal dimension of spatial distribution showed that the correlation of towns was weak.Some advices on how to optimize the urban system of Wanjiang Area were put forward.