A FRACTAL STUDY ON THE STRUCTURE OF URBAN SYSTEM IN HONGSANJIAO AREA

Fractal dimension is an effective parameter describing the structure of the urban system.The paper chose 36 cities in Hongsanjiao made of Ganzhou,Chenzhou and Shaoguan as samples to analyze size fractal dimension,correlation fractal dimension and random aggregation fractal dimension of the structure of urban system.Through analyzing fractal dimensions and individual fractal dimension coordinate,the paper draws the conclusions below:①The quantities of middle size city are more than bigger and smaller one,and the regional population distribution is a relative equilibrium;②The spatial structure of urban system shows axis characteristic and perfect relatively network of transportation,but the degree of spatial association between the cities is inadequately compact,and the intensity of the interaction of the cities is medium;③The cities gather around their central city in spatial arrangement.According to the conclusions mentioned above,some proposals are put forward for the optimization of urban system such as developing actively sub-central cities,strengthening the construction of regional spatial structure axis,appropriately adjusting the administrative division and accelerating the construction of transportation infrastructure.