Changsha Yanghu Wetland Park Phase Ⅲ Landscape Renovation Design From The Perspective Of Sponge City

In recent years,climate change has caused frequent floods and droughts,and the resilience and ability to resist natural disasters of contemporary cities need to be improved urgently.This study focuses on the problem of stormwater management.Through literature analysis,case study,field investigation,project practice and other methods,this paper discusses the role of urban wetland parks in the context of frequent urban waterlogging,water shortage and serious rainwater pollution in China.Through the discussion of the related concepts and connotations of urban wetland parks and sponge cities,combined with the analysis and summary of five typical transformation cases at home and abroad,the design of urban wetland parks under the concept of sponge city is discussed.Then,the third phase of Changsha Yanghu Wetland Park is selected as the research object.According to the sponge design strategy proposed in this paper,the park landscape reconstruction design is carried out on the basis of rational utilization of the original site.The main research contents include:Firstly,this paper discusses the research background,purpose and significance.Through the research and combing of relevant literature,this paper summarizes the theoretical research progress and practice of sponge city and wetland park at home and abroad,and analyzes the importance of sponge city theory in the construction of urban wetland.Then,by analyzing the actual sponge transformation cases of urban wetland parks that have been implemented and operated well,the in-depth analysis and summary are carried out,and the experience worthy of reference is extracted.Combined with the previous text,the sponge transformation strategy is proposed to provide ideas and reference for the subsequent wetland park design.Finally,the third phase of Changsha Yanghu Wetland Park was selected for renovation design.According to the evaluation criteria of urban parks in the sponge city construction project evaluation standard(2022 draft),the current sponge construction is scored and the main existing problems of the site are analyzed.The geographical location and natural conditions of the third phase of Changsha Yanghu Wetland Park were investigated in depth.Based on the theoretical research and analysis results,the third phase of Changsha Yanghu Wetland Park was reformed,and the current site and sponge facilities were reasonably arranged.The reconstructed wetland park is again compared with the sponge city construction project,and the applicability of the project to the theory of this paper is demonstrated.