Research On Landscape Design Of Rainwater Garden In Residential Area Based On Sponge City

With the continuous expansion of urban area,in order to meet the needs of more and more people,large-scale natural green space is replaced by non-infiltration underlying surface.Rainwater runoff can only be discharged through gray foundation pipeline.Pipeline loads are bound to occur.How to use the ecological methods to use and infiltrate urban rainwater to restore the rainwater circulation of natural respiration,and start relevant theoretical research at home and abroad and continue to conduct practical discussions.Based on the analysis of relevant theories and successful cases at home and abroad,this paper studies the rainwater in residential areas under the guidance of the concept of “sponge city”,and combines the design methods of landscape to study the construction of rainwater landscape in residential areas,and summarizes a series of Related construction plans and practical research led to the following conclusions:(1)Explain and compare related concepts such as “rainwater garden” and “sponge city”,and introduce the related concepts of rainwater landscape and rainwater landscape in residential areas,and strive to integrate relevant research results into China's current situation and harden for China's cities.The improvement of the mat surface,starting from the residential unit,provides a reference for the urban ecological rain treatment and sustainable landscape construction.(2)Analyze and summarize the cases of the rain gardens in the four residential areas of the Kongsberg community in Germany,the High Point community in the United States,the “rainwater neighborhood” in China,and the renovation project of the China Resources New Village in China.The analysis of rainwater facilities and the analysis of characteristic rainwater landscapes extracted the landscape techniques of the community rainwater garden,including the storage pool,grass shallow ditch,stone cage landscape,low-lying green land,grille square,rainwater simulation path,and ecological filtration unit.(3)Through the combing of the theory and case analysis,five types of rainwater in residential areas are proposed,including building roof rainwater(including roof,canopy,carport,etc.)and courtyard rainwater(including villa courtyard,first floor courtyard,roof garden,etc.).,road rainwater(including hard roads such as roadways,walking trails,squares),green rainwater(including micro-topography,lawns,planting ponds,etc.),other facilities rainwater(resting facilities,recreational facilities,etc.);Rainwater treatment combined with landscape,including building rainwater landscape,road rainwater landscape,terrain rainwater landscape,waterscape rainwater landscape,small rainwater landscape,paved rainwater landscape,plant rainwater landscape;and 22 types of landscape combination Landscape facilities,69 landscape creation techniques.(4)Through the planning and practice of the Ru yuan Community in Baoji City,the ecological management of the rainwater will enable the rainwater to be absorbed and accumulated,and the grassland,the foggy system,the rainwater visible path,and the FRP will be selected according to the current conditions of the project.Garbage plaza,grass flower garden,ornamental grass plaza,rain water sound facility,rainwater collection box,rainwater reflective bench,infiltration lawn and other rainwater landscape techniques are practiced to create a more beautiful residential environment and rainwater ecological treatment.