The Research About The Optimization Of Qiandongnan Prefecture's Urban System Structure

Urban system refers to the aggregate composed by the cities that have different function,scale-rank and contact closely and depend on each other in a relative integrated region,which is one of main study contents of urban geography.As the east door of Guizhou province,Qiandongnan Miao and Dong Autonomous Prefecture is the important channel by which link the Guizhou Province and the other west provinces to the east developed area of our country.With the participating across-the-board of Guizhou Province in the economical cooperation of the Pan-Pearl River Delta and the beginning to building of the Xia-Rong high way and Gui-Guang high-speed railway, Qiandongnan Autonomous Prefecture will strengthen the regional cooperation with the the east developed area,and will be the important basement that undertake the transferring industries from the east developed area.So in this critical period of stratagem,it has the important significance of theory and practice for the development of Qiandongnan's ecomomy and society to study how to catch the opportunity and build up a harmonious urban system.The paper divides five parts to study the structure optimization of Qiandongnan's urban system.The first chapter is exordium,which account primarily for the macroscopical and microcosmic background,the significance of study,the material practice study on urban system structure throughout domestics and overseas,and the idea and way of the study in this paper.The second chapter introduces the primary conception and the theoretical foundation that urban system relate to.The part of the primary conception introduces not only the conception and character of city and town,but also the conception,character and structure of urban system.The part of the theoretical foundation introduces many theories of city development,Such as Law of the Primate City,city pyramid theory,rank-size rule,central place theory,growth pole theory,core-periphery geographical theory,point axis theory,urban-rural integration theory,and the application of fractal theory to the study of urban system.The third chapter analyses the historical evolution the development conditions of Qiandongnan's urban structure.Firstly,the paper divides the evolution of Qiandongnan's urban structure into three historical phases,and introduces the characters of each phases.Secondly,the paper analyses the development condition of Qiandongnan's urban structure,such as natural resources,ecomomical foundation and the population and society circumstances.The fourth chapter is a research on the development state of Qiandongnan's urban System,which is the hardcore.By analyzing quantificationally the scale-rank stracture,the foundation structure and the spatial structure of Qiandongnan's urban system,the paper evaluate the the development state of Qiandongnan's urban system.The fifth chapter is a research on the ways to optimize structure of Qiandongnan's urban system.Firstly,the paper puts forth the guidelines and the strategic aim,then sets forth the countermeasures to optimize Qiandongnan's urban system structure from 5 aspects.