Studies On The Construction Of Public Green Space Based On The Concept Of Sponge City

At present,with the accelerated pace of city construction,water resources crisis in a variety of more and more serious,for example,the lack of fresh water resources,flood disaster,city water logging,underground water continued to decline,and the passage of aquatic habitats.From the macroscopic view,these problems are caused because of not harmonious relationship between man and nature in the ecological environment;from the micro perspective,the emergence of these problems is not a problem because the management department functions,it is the problem of a complex and comprehensive system.We are in urgent need of a healthier and more ecological approach to the water crisis.The original idea of "sponge city" is based on the above water problems.Public space is an important landscape of modern city,it can not only beautify the city,purify the environment,can also be the city's precipitation shunt,guide rainwater into underground pipelines,is of great significance for city flood prevention.However,there are still many deficiencies in the design of public green space system.Using the theory of the sponge City,we can optimize the design of the public green space system,so as to improve the rainwater saving and purification ability of the urban public green space,so as to reduce the impact of urban flood disaster.In this paper,through the research on the design methods of the public green space,such as the rain garden,the sunken green space and the permeable pavement,this paper puts forward the design idea of the Nanchang.In view of the above problems,through the research of the advanced technology and the policy of the sponge city construction at home and abroad,the author draws on the successful cases and draws on the experience of the sponge city construction.Combined with the information of NanChang's geography,meteorology,hydrology and socioeconomic status,after rainfall data comparison in Nanchang City,conducted a comprehensive analysis of factors in Nanchang City,rainfall,water information,rain water logging phenomenon,put forward the necessity of the construction of the sponge city of Nanchang City,the feasibility and specific technical measures.Complete the design of ChaoYang delta landscaping project of Nanchang City,to alleviate the local city water logging,improve the local ecological environment,improve the quality of the local city,has important economic benefits and social benefits and environmental benefits.