| In the context of the rapid development of urbanization,in order to ensure the normal operation of the city,the size of the city continues to increase.At the same time,the exchange of material,information,and energy between cities and regions is becoming more and more frequent.The metropolitan area composed of central cities and peripheral areas has become an important organizational form in the process of urbanization in my country.County-level cities,as the basic unit of the peripheral area of the central city,have significantly improved the degree of cooperation with the central city.The phenomenon and trend of the reconstruction of the spatial structure of county-level cities in the context of the expansion of metropolitan areas have become increasingly frequent and significant.The main research purpose of this article is to study and analyze the influencing factors of urban spatial reconstruction at the county level outside the central city and the general model of urban spatial reconstruction within the scope of the metropolitan area.The typical Qihe County,which has the closest spatial relationship with the Jinan metropolitan area,is analyzed as an example to try to guide its future spatial development planning.The significance of this article is to provide reference for many county-level urban development planning in the metropolitan area,improve the scientific rationality of spatial reconstruction decision-making,promote county-level urban and rural development,and then improve the reasonable regional spatial system.Through data research,analogy analysis,field investigation and summary,etc.to study the spatial reconstruction of county-level cities within the metropolitan area,the article mainly consists of the following parts:The first chapter is an introduction.It mainly introduces the background and significance of the research,pointing out that with the gradual development of the metropolitan area,industrial development,population mobility and transportation facilities will have a huge impact on the surrounding county-level cities,and will eventually promote the reconstruction of the surrounding county-level cities.Then it introduced the domestic and foreign related research such as urban space diffusion,urban space organization.Finally,the research content,research methods and technical route of this paper are introduced.The second chapter is related concepts and theories.Define related concepts.It mainly introduces the economic connection potential,spatial accessibility and related theories of urban spatial organization in the theory of interaction between cities,which lays a theoretical foundation for further research in this article.The third chapter studies the factors that drive the expansion of metropolitan areas and the factors that influence the spatial organization of county-level cities.The driving factors for the expansion of metropolitan areas are described in terms of central city population,land expansion,and capital factors.In addition,it focuses on the internal and external factors of the county-level urban spatial organization under the expansion force,including population aggregation,industrial restructuring,new urbanization construction,urban domestic demand expansion,cohesion and border effects in the city center,and transportation factors.The fourth chapter is to use the method of induction and summary to propose three basic modes of county-level urban space reconstruction:the central city polarization,the axial band growth type,and the multi-core growth continuous type,and introduces the three modes in detail..Chapter 5 is a case study.First it introduced the status quo of the spatial structure of Qihe County,and analyzed the existing problems of development.Then it analyzes the impact of the expansion of Jinan metropolitan area on the spatial reconstruction of Qihe County and the historical evolution process and motivation of the spatial structure of Qihe County from the three aspects of macro policy,economic impact,and spatial accessibility,and formulates the future Qihe County city accordingly regulation strategies for spatial reconstruction. |
