Study On The Spatial Evolution And Dynamic Mechanism Of Chang Zhu Tan Urban Agglomeration

Urban agglomeration is the most dynamic and potential central growth pole in China's economic development,the cultivation and construction is mentioned the height of the national development strategy,and gradually become a new type of space form.Since 1987,China's economic and social development in an all-round way,town number and scale expands unceasingl y,urban agglomeration form more apparent,urban agglomeration has become the main form of the future urbanization construction,and become the main platform to pull China's rapid economic growth and participate in international economic cooperation and co mpetition.In 2015,?Urban agglomeration development plan in the middle reach of Yangtze river?was approved of the state council,Including ring of Chang-Zhu-tan urban agglomeration,urban agglomeration in the middle reach of Yangtze river become the fourth growth pole in China's economic.Chang-Zhu-tan urban agglomeration development and research,related to the needs of the development of Hunan itself,also need to implement the national strategy of rise of central China.In this context,the study of characteristics,process and mechanism of the evolution of urban spatial form,Can not only enrich and develop the theoretical system of the urban agglomeration spatial form evolution,is also the needs of the state or local government strategy formulation and implementation.Therefore,how to develop urban space form,what kind of pattern in different stages mode,characteristics,what factors influence the evolution of urban spatial fo rm and urban agglomeration spatial form is how evolution under the driving force and mechanism of action,all became the main content of this paper studies.Based on the above background and purpose,in this paper,the research train of thought is to review and summarize related theories and research experiences of urban agglomeration spatial form at home and abroad.Use the research methods of inductive deductive-data collection and analysis-model building,As the research object of Chang-Zhu-tan urban agglomeration,it has four stages of development,such as Discrete,polarization,agglomeration-diffusion and balanced,and each stage of space form pattern,morphological characteristics and influencing factors are researched and analyzed.And on this basis,summarizes the Chang-Zhu-tan urban agglomerations of space form evolution characteristics;Then from the inside and outside two aspects analyzes the driving force in the evolution of the spatial form of Chang-Zhu-tan urban agglomeration,with the introduction of the theory of self-organization and the organization,To build the mechanism of action of Chang-Zhu-tan urban agglomeration spatial form evolution model,finally come to the conclusion and major revelation.