Construction Of Hilly Cit Y Landscape Infrastructure Based On Double Urban Renovation

The rapid development of the city has brought economic development and the improvement of people's quality of life.At the same time,it also leads to a series of urban diseases such as traffic congestion,air pollution,ecological resources reduction and poor living environment.With the gradual deterioration of these problems,people are gradually aware of their seriousness and begin to s tudy and try to mitigate these urban crises.In this context,in recent years,our country has proposed the concept of "urban double repair",that is,ecological restoration and urban repair.On the one hand,the purpose is to protect the existing ecological resources of the city,make full use of the city's available space and repair the damaged natural resources in the city.On the other hand,it is opposed to the previous model of big demolition,large and rough urban renewal,and emphasizes the small scale,small scale,the gradual repair of the urban environment and the city image,and the mining of urban image.Taking the same idea to protect and repair historical and cultural resources in cities.However,the "targeted" repair and repair model of urban double repair,to some extent,lacks the continuity and integrity of urban ecological resources and urban built environment.Therefore,this paper takes the concept of urban double training as the basic concept,and achieves the goal of urban double repair through the construction of the landscape infrastructure network.This paper,taking the southern hilly city as the research object,tries to build a landscape infrastructure network based on urban double repair,on the one hand,to protect,integrate,repair and utilize the existing natural ecological resources in the city.On the other hand,to excavate the available infrastructure of the city and other urban spaces to repair and transform the urban ecological space or public open space.At the same time,it emphasizes the repair and utilization of the urban lost space in the built-up area and the protection and gradual,small-scale transformation of the historical and cultural resources of the city,in order to improve and optimize the urban environment.This paper first studies the research process and related theories of urban double repair and the related research and practice of landscape infrastructure,and analyses the methods of constructing the landscape infrastructure network.Secondly,through the correlation analysis,we summarize the characteristics and the construction process and method of the southern hilly city landscape infrastructure network.The strategy of conservation,restoration and repair of landscape infrastructure network sites under urban double repairs is also proposed.Finally,through case analysis and demonstration,its construction method is more practical and persuasive.The results are as follows:1 According to the concept and requirements of urban double repair,the lan d to be chosen for the landscape infrastructure network is analyzed.At the same time,according to the topography and natural characteristics of the hilly cities in the South and the characteristics of the urban environment,the factors affecting the choice of landscape infrastructure network sites are analyzed.The ecological sensitivity of the city and the accessibility of urban historical resources and lost space are calculated by GIS and RS,and the corresponding weight determination and superposition are carried out to analyze the importance grade of the landscape infrastructure network land for urban double repair.2 According to the status and nature of urban land use,the central control area,connection channel and site of the landscape infrastruct ure network are selected,and the relevant technical measures for the protection,repair and repair of each land use are put forward.The central control area is dominated by natural elements,that is,the existing landscape infrastructure,including important mountains,waters,urban green spaces,etc.Optimizing central control area by means of protection and ecological rehabilitation.Connecting channels include natural elements and artificial factors(i.e.,existing,potential and three types of land under the urban landscape infrastructure).Natural elements mainly include linear river systems such as rivers and some potential water systems.Artificial elements include urban roads and some linear infrastructures.The strategy is based on the combination of ecological restoration and urban repair.The site is mainly artificial elements,that is,the landscape infrastructure land under urban repair,and the basic principles and methods of urban repair are optimized.3 The case of Loudi city in the southern hilly region is analyzed to demonstrate and strengthen the feasibility and practicability of the network construction method of the hilly city landscape infrastructure based on urban double repair.In short,the components of these networks will be formulated in a timely,appropriate and appropriate way.