On October 8th, 2003/kloc-0, 165438, Hubei province made a major strategic decision: to build Wuhan city circle. China, 2005.

The document number 10 of "The Rise of the Ministry", "Wuhan City Circle" is listed as the first of the four major city circles in Central China, rising to the national level. June 5438+February 65438+April 2007, Hubei and Hunan provinces received the official reply from the National Development and Reform Commission, and the State Council approved Wuhan City Circle and Changsha-Zhuzhou-Xiangtan Urban Agglomeration to become a national resource-saving and environment-friendly society (hereinafter referred to as? Two-oriented society? ) building a comprehensive reform pilot zone. The National Development and Reform Commission's Notice on Approving Wuhan Metropolitan Area and Changsha-Zhuzhou-Xiangtan Urban Agglomeration as National Experimental Zones for Comprehensive Reform of Resource-saving and Environment-friendly Society Construction points out that the comprehensive reform of Wuhan Metropolitan Area and Changsha-Zhuzhou-Xiangtan Urban Agglomeration should thoroughly implement Scientific Outlook on Development, proceed from its own reality, and devote all efforts to reforms in various fields according to the requirements of resource-saving and environment-friendly society construction. At the same time, take the lead in breaking through bold innovations in key areas and key links, form an institutional mechanism conducive to saving energy and resources and protecting the ecological environment as soon as possible, accelerate the transformation of economic development mode, promote sound and rapid economic development, promote the coordination between economic and social development and population, resources and environment, and earnestly embark on a new road of industrialization and urbanization development different from the traditional model, so as to play a demonstration and leading role in promoting the reform of state institutions and achieving scientific development and social harmony.

Keywords: investment structure, industrial structure of city circle

(A) the concept of city circle

In the process of urbanization, urban agglomeration is a city-regional system formed by several densely distributed cities at different levels and their hinterland through spatial interaction in a specific geographical space with a high level of urbanization, with regional networking organizations as the link. The emergence of urban agglomeration is the product of the development of productive forces and the gradual optimization and combination of production factors. The development of urban agglomeration can realize the optimal allocation of resources in a larger scope, enhance the radiation effect and promote the development of cities in urban agglomeration. The construction of urban agglomeration has become a major macro-strategy to promote regional development in China, and it is also the main way to promote the process of urbanization in China.

(B) the conditions for the formation of city circle

Urban agglomeration is naturally formed, and natural formation is bound to have close internal relations. The formation of city circle is the result of the comprehensive effect of regional location advantage, natural resources, traffic conditions, cultural similarity and policy support. To form a city circle, a region must meet the following conditions:

There is at least one central city with developed economy and high energy level in the 1. circle, which can be regarded as "growth pole".

2. The surrounding cities should have a certain population size and density, and can rely on the central city to form the integration and complementarity of economic, social and cultural activities and promote economic integration.

3. The level of urbanization should reach a certain level, the urban hierarchy system is reasonable, the circle space is clear, and the diffusion area is wide. 4. The infrastructure network in this area is developed, the industrial structure is complementary, and it has the ability of continuous innovation and advanced performance. When Wuhan and its surrounding cities meet these requirements, the Wuhan metropolitan area will be ready.

(C) the status quo of Wuhan city circle

Wuhan City Circle refers to Huangshi, Ezhou, Huanggang, Xiaogan and Xianning within100km of Wuhan and its surrounding areas.