Study On The Landscape Optimization Of Urban River Corridor Based On The Green Infrastructure Space Planning Model

As a comprehensive landscape with rich connotation,river corridor landscape provides diverse ecosystem services for human society.In contemporary society,through the establishment of river ecosystem,the realization and protection of biological diversity,control of river pollution and so on to better meet the needs of human being close to nature,has become a common understanding of the research of urban river corridors.Through the research on the theory of green infrastructure at home and abroad and the theory of urban river corridor planning,it is found that both internal and external scholars tend to regard the river and its cross-strait interlaced systems as a whole system,that is,the river corridor system,and the system is an important corridor in the green infrastructure.Through the role of each node in the ecosystem network,we should coordinate the contradiction between man and nature.Based on the coupling analysis of green infrastructure and urban river corridor,this paper puts forward the construction of multifunctional and coordinated urban river corridor.The function factors of urban river corridor,the existing problems and contradictions are changed with the development of corridor space,and the internal laws are needed to solve the problem.Therefore,this paper innovatively constructs the quantitative evaluation index system of urban river corridor function evaluation to evaluate the function factors and evaluate the results.Based on the comprehensive functional zoning of urban river corridors,the problems and solutions are analyzed,and the optimization goals and strategies for each section are put forward.Based on this,the main content of this study is based on the theory of green infrastructure and river ecology.Taking the Funan River in Chengdu as an example,the present situation of the functional elements of the river corridor in the Funan River in Chengdu is analyzed,and the adaptive optimization strategy is put forward.(1)build an evaluation index system of urban river corridor function.The green infrastructure space planning model is a tool for analyzing and evaluating the functional elements of the green infrastructure with GIS as a technical support.It simulates the current situation of urban development and provides a quantitative analysis basis for making the corresponding decision.Based on the green infrastructure space planning model,this paper constructs the evaluation index system of urban river corridor function,which mainly refers to the evaluation and evaluation of the functional elements of urban river corridors with the green infrastructure space planning model,that is,to construct the evaluation index system,and to quantify the urban rationality through the GIS space analysis.The functions of the corridor are given full play,and the comprehensive analysis results of urban river corridors(2)the optimization strategy of urban river corridor function are obtained by weighted assessment of various functions.One of the purposes of building evaluation index system is to analyze and discover problems,and the second is to provide ideas and basis for solving problems.Based on this,on the basis of the assessment and analysis of the function of the Funan river corridor,this paper makes a more thorough and detailed analysis and evaluation of the Funan river corridor,and divides the types of the urban river corridors into 5 types: ecological protection area,ecological restoration area,construction and Development Zone,slow rush area and transition zone.Problems and main contradictions are put forward,and optimization strategies for each section and space optimization strategy are put forward.Finally,we review the full text,summarize the research contents,and analyze the shortcomings in the research,so as to provide some help and ideas for future research.