Cities are social productive forces and the product of historical development of science and culture, but also the gathering center of regional economic development, having contributed to the rapid development of the surrounding towns with the energy of the city gathered spreading to, making the continuous expansion of urban areas, more closely the links between the city and eventually the formation of urban agglomerations. In short, the city is a organism of regional group space, natural elements and social and economic elements, its development is a regional complex and generally under the combined effects of a variety of dynamic mechanism.Dynamic mechanism is the formation and role processes of dynamic. The research of urban agglomeration of the dynamic mechanism of economic development, is the only way to reveal regional economic development law, is the key of solve issues of economic development. Through the formation of urban agglomeration economy development power and action process, we can sort out the power origin, the influence factors of dynamic changes, dynamic mechanism, in turn, can understand the regional friction of urban agglomeration, the policy path dependence is too strong And other deep-seated problems, for scientificly formulating the strategy and policy of regional economic development providing theoretical basis. U development of urban agglomeration power factor can be summed up in four areas: Capital Power; human resource power; system of power; technical power.Generally Changzhutan Urban Agglomeration is the Changsha, Zhuzhou, Xiangtan three cities, but urban group is in development as the "Changzhutan City Cluster planning" the State Council approved point that Changzhutan city cluster is composition of the range planning and coordinated range planning. The so-called Changzhutan"3+5" urban agglomeration, include the administrative area of Changsha, Zhuzhou and Xiangtan City, and most parts of the 5 cities of Yiyang, Loudi, Yueyang, Changde, Hengyang. Adventages of Changzhutan "3+5" Cities on the geographical location, transportation, natural resources, economic strength and growth capacity, and industrial base, and other areas, make Changzhutan Urban Agglomeration have good prospects on the optimization and upgrading of industrial structure and economic development. However, Xiangtan Urban Agglomeration in the consolidated need to enhance competitiveness, promote the commanding heights of the city development strategy should be:the city to assume their functions at the regional division of labor, determine its development orientation. However, Changzhutan Urban Agglomeration also need raise the overall competitiveness, and promote the commanding heights of the city development strategy. It should be that each city assume their functions at the regional labor division, and determine its development orientation. To accelerate the development of Changzhutan City Group, not only to development in Hunan, it is the national strategy needs to develop central China. For such a development background and regional context, of interest groups in the city of all cities in the status of development status, analysising and concerning about the city in the city and the status group development status, has become the Changzhutan "3+5" Urban most pressing problem.To know the construction of dynamic mechanism of urban development, firstly it is necessary to understand the internal features and operational mechanism of the process of urban development. Secondly the process by establishing the model can better promote the multi-information exchange, highlight the main factors. Using Principal component analysis, to research power system of four major economic development in13 cities of Hunan Province's in a comparative analysis of, can know Changzhutan "3+5 "Urban economic development not only includes the core area of Hunan Province (in North), Also includes a relatively backward region (Loudi City). Uneven development of urban agglomeration factors include:location, industrial structure, natural resources, talents, special policy support.Empirical analysis shows that ascending changsha-zhuzhou-xiangtan urban agglomeration development power, and promoting the formation of Hunan new economic growth, is necessary to to optimize the urban structure, enhance the radiation effects of central city; adjust the industrial structure, driving changzhutan "3+5 "Urban Industry Integration; build changzhutan "3+5 "Urban financial support system to promote economic development; establish a unified investment mechanism, and vigorously expand the investment space; Pay attention to talents team construction, providing intellectual support for the changzhutan "3+5 " city group Development. |