| Fujin city is located in the northeast border of China.It is rich in natural resources but underdeveloped in economy.Its economic foundation is weak.There are some problems,such as weak overall economic strength,low level of urbanization,small scale of central city,lack of development power of small towns,backward infrastructure construction and so on.But Fujin has its special location advantage,geographical advantage(Sanjiang Plain)and resource advantage,and has great development potential.The background of revitalizing the northeast,the new era of urban and rural overall development and the new pattern of coordinated development have brought many opportunities for the development of Fujin city.Urbanization has entered a rapid promotion stage,the continuous expansion of urban scale,and the adjustment of urban system structure has become inevitable.Therefore,in this new era,the research on the spatial structure of Fujin city’s urban system has been carried out,and optimization strategies have been put forward for the cultivation A reasonable and sound urban system structure is of great significance to promote the sustainable and healthy development of Fujin economy.First of all,the paper discusses the research background,research purpose and significance,as well as the analysis of the research status of related fields at home and abroad,and summarizes the research content,collates the research framework,and explains the feasibility of the research.Based on the theory of city primacy,rank scale rule and fractal theory,this paper lays a solid foundation for the preliminary study of urban system planning in Fujin City,and also serves as the technical basis for the spatial optimization strategy of urban system in Fujin city under the background of collaborative development.This paper analyzes the current situation of urban-rural system in the context of collaborative development in the process of urban-rural spatial coordination,urban-rural economic coordination,urban-rural transportation coordination and urban-rural ecological coordination,and summarizes the main problems.Finally,combined with the development prediction of urban system of Fujin City,the optimization strategy of urban system of Fujin city under the background of coordinated development is proposed from four aspects: urban-rural spatial coordination,urban-rural economic coordination,urbanrural transportation coordination and urban-rural ecological coordination.The purpose of this paper is to provide some reference for the spatial planning of Fujin City,especially the calculation and classification of the ecological land protection pressure in this paper,which will contribute to the evaluation of the ecological carrying capacity of Fujin City,the drawing of the ecological protection base map and the limitation of urban construction land expansion. |