STUDY ON THE SIZE—DISTRIBUTION OF URBAN SYSTEM IN HUNAN PROVINCE BASED ON THE FRACTAL THEORY
用分形理论和齐普夫模型分析湖南省城市规模分布的分形特征，发现近年从单分形结构变为双分形结构且更均衡，但首位城市和其他大城市规模偏小。
In current planning cities and towns system,to calculate and predict the scale distribute of cities and towns,the traditional methods have obvious shortages.In the paper,fractal theory and Zipf Model are used to analyze the fractal features of the size distribution of cities in Hunan province,and the result shows that the city—size distribution is changed from a single—fractal structure to a bi—fractal structure in Hunan province in nearly years,and which is also more balanced.Other problem is the scale of the first city and other big cities are too small.In the last,some suggestions are put forward.