| With the continuous advancement of China’s urbanization process,not only are cities facing serious water pollution and water shortages,but there are also unreasonable utilization and management of rainwater.In order to solve this series of problems,the country proposed the concept of sponge city in 2013.In the future urban residential areas,it is necessary to vigorously strengthen the promotion of sponge city construction.However,different regions have their own problems in the construction of sponge cities.This paper takes Xi’an Airport The Yangguangli residential area is a research and design object.Through four research methods: literature summary,case study,data collection and case practice,a special design of the landscape sponge city in the relevant residential area is carried out.The relevant results are summarized as follows:1.Attach importance to urban rainwater management: attach importance to urban rainwater resources,rationally arrange sponge facilities to achieve the purpose of rational use of rainwater resources.2.Improve sponge technical measures: It is necessary to continuously strengthen the research on sponge technical measures and improve the sponge technical measure system.Therefore,corresponding sponge measures can be taken according to the site’s role in rainwater retention and storage and site characteristics to maximize the utilization of rainwater resources.3.Emphasize the layout and structure of the living sponge city: first,do the research required on web geology to determine if sponge steps can be used;then according to the livability,ecological and regional sponge city design principles for the residential area in Yangguangli Carry out landscape design and adopt corresponding sponge technical measures.Calculations have proved that the application of sponge technology in Xi’an Yangguangli residential area has achieved the goal of controlling the total annual runoff and increasing the TSS(Total suspended solids)reduction rate of rainwater runoff.Therefore,it is feasible to adopt livable,ecological and regional sponge city design principles and select appropriate sponge technology measures for planning and design,which can provide reference and research for the planning,design and research of sponge cities in other residential areas.reference. |