Research On Planning And Construction Strategy Of Liujiaba Ecological Green Corridor In Luxi River Of Chengdu Based On Landscape Infrastructure

Since General Secretary Xi’s inspection of Chengdu Tianfu New District in early 2018,he proposed that "the planning and construction of Tianfu New District should highlight the characteristics of the park city and need to consider its ecological value",Chengdu has embarked on the boom of park city construction.Under this background,based on the guidance of landscape infrastructure theory,this paper provides a landscape construction approach for ecological green corridors through landscape infrastructure strategies,and optimizes the planning process for ecological green corridors constrution.Firstlly,this paper summarizes the relationship between landscape infrastructure and the construction of ecological green corridor:from the macroscopic perspective,it summarizes a set of ecological green corridor construction system that is consistent with the theory of landscape infrastructure.And from the microscopic perspective,it expounds various ecological green corridor construction measures corresponding to the landscape infrastructure.Combined with the above two perspectives,it summarizes the planning and construction strategy of ecological green corridor based on landscape infrastructure.Secondly,it summarizes the site overview and planning vision of the Liujiaba section of the Luxi River in Chengdu,and concludes that there are three problems in the construction of an ecological green corridor on the site:riverside floods,backward agricultural production,and poor block connectivity.Then,AHP was used to establish the evaluation system,and the ecological sensitivity evaluation results of the site were obtained through GIS technology,and the ecological status quo of the site in the aspects of topography,hydrology,natural disasters and vegetation cover was evaluated,which laid a foundation for the construction of the site ecological base in the following paper.Finally,the ecological green corridor planning and construction strategy guided by landscape infrastructure is applied to the green corridor construction of liujiaba section of luxi river in chengdu.The strategy consists of five steps:the reconstruction of ecological base at the macro level,the design of diversified modules,the connection network,the multi-dimensional development of "one public and three living",and the construction and control of ecological dimension.Each step is interlaced with four landscape infrastructure construction measures including water conservancy,agriculture,transportation and control at the micro level,so that the construction process of the ecological green corridor can be implemented,and the focus is on solving the current situation of the site in waterfront,agriculture and transportation connection.It provides theoretical strategy guidance and practical scheme reference for the construction of ecological green corridor.