The Research On Structural Character And Structural Optimizing Of Changzhutan Urban Agglomerations

Urban Agglomerations has become one of the main trends in the process of urbanization in the developed countries since the middle of the 20th century. From the point of view of its economic geographic location and spatial location in Hunan Province and the country's economic deployment, the three cities (Changsha, Zhuzhou and Xiangtan) are not only the vital terrain in the Hunan Economic Zone, but also one of the best urban Agglomerations construction place in South China. Therefore, the research on the structural characters of the ChangZnuTan urban Agglomerations will greatly promote the urbanization process of the three cities and fundamentally improve the economic sustainable development of ChangZhuTan district and Hunan Province.Based on the mass synthetical discourse of the internal and overseas research result, this paper firstly defined the regional range of the ChangZhuTan urban Agglomerations, then briefly discussed its development status in quo and compared it with the three urban Agglomerations along the seashore of our country. Under the introduction of the fractal theory, the author used the theory to analyze quantitatively the hierarchical size structure and the spatial structure, found that these two kinds of structures had obvious fractal characters, then analyzed detailedly the showed fractal character. Using the Gene Analysis Method which is established on the basic method of the city economic research (basis-nonbasis analysis) and the Systematical Clustering Technique, the author scientifically divided the functional structure of the ChangZhuTan urban Agglomerations.From the results of the above analysis, the author firstly put forward pertinently the general methods to optimize the structural characteristics of ChangZhuTan urban Agglomerations. Those include: l).To form urban Agglomerations hierarchical size structure with clearly demarcated arrangements which has the first-rated city as its central city; 2). To form the functional structure of urban Agglomerations those are functionally mutual-compensational and specifically working-divided; 3). To optimize the spatial structures of urban Agglomerations following the "1-2-2-4" mode. Then the author far-sightedly tabled some proposals relating to the optimization of the structures of the ChangZhuTan urban Agglomerations, which include: 1). With reference to the developed countries' administrative modes to establish an administration institution in charge of the harmonious development of the urbanAgglomerations; 2). To implement the industry clusters developing strategy, utilize the industrialization to accelerate the urbanization process; 3). To set up a urban Agglomerations market system characterized by unification, opening and order competition; 4). To strengthen the protection to environment, insist on the sustainable development strategy. These proposals may give local government some scientific bases in the course of their decision-making.