Study On The Coupling Of River And Green Space System In Fuzhou City Based On The Concept Of Greenbelt Ecological Network

Urban rivers and green space systems are very important components of urban ecosystems,and they are the most obvious places where natural processes and human activities interact together in cities.They have certain spatial forms,and produce common environmental and social functions through interrelated influences.However,in the period of accelerated urbanization development,this relationship is becoming weaker and weaker.On the one hand,it reflects the state of spatial dispersion and fragmentation,on the other hand,it reflects that the common functions can not play well.It is particularly important to study the "coupling" relationship between rivers and green space systems for the healthy development of cities.Fuzhou is a famous historical and cultural city.There are many rivers and green spaces in the city.Studying the coupling of rivers and green space system is also of great significance for speeding up the overall planning of river system construction and green space system in Fuzhou,solving urban problems and promoting social and ecological development.By combining the concept of coupling and green space ecological network,this paper defines the coupling of river and green space system in detail,and considers that the coupling between them should be theunity of macro-network and micro-details,spatial coupling and functional coupling.Taking Fuzhou as an example,this paper studies the coupling model and contemporary coupling factors between urban river and green space system from the historical and realistic point of view,and establishes a coupling degree evaluation system.The paper is divided into four parts,including:(1)Research on theoretical basis.Based on the review of the concept of coupling and green space ecological network,the definition of coupling between river and green space system based on green space ecological network is proposed.(2)Macroscopic exposition from a historical perspective.By analyzing the changes of the spatial pattern of ancient mountains and rivers in Fuzhou and discussing the existing mode of spatial coupling macroscopically,it is concluded that the existence of the axis of mountains and rivers is the proof of the existence of coupling with the continuous fit of river network and green space.(3)Contemporary coupled impact factor analysis.Based on the spatial layout,construction and ecological network characteristics of the river and green space in Fuzhou,this paper summarizes the network coupling model of the river and green space system in Fuzhou,comprehensively analyses and searches for the coupling influencing factors of the river and green space system in Fuzhou,and concludes atotal of 17 coupling influencing factors in the spatial coupling level and the functional coupling level.(4)Establishment of coupling degree evaluation system and Evaluation & promotion of coupling degree.Combined with the influencing factors summarized,an evaluation system of the coupling degree of the river and green space system in Fuzhou City is constructed by using the analytic hierarchy process,and the influence of each index on the coupling degree is quantitatively analyzed.According to the evaluation system,a questionnaire was designed to make a comprehensive evaluation of the coupling degree of the river and green space system in Fuzhou at this stage.Several priority promotion strategies of the river system construction and green space system planning in Fuzhou City are given,including: Strengthening the coupling construction of rainfall and flood management function,relying on rivers and green spaces to build ecological protection zones and promote the coupling of ecological functions,constructing green corridor to accelerate the enhancement of the macroscopic networking degree of river and green space system and focus on details,create a beautiful and harmonious waterfront space,etc.