Research Of Rainwater Landscape Ecological Design Techniques Based On Rainwater Management In Xi’an Settlement

In the background of the sponge city,the management of stormwater in urban settlements has become the focus of attention.However,in the practice of landscape planning and design,the landscape design of residential areas and the use of rainwater are just getting started.How to form a set of effective methods for ecological design of residential rainwater landscapes that can be used directly by non-environmental engineering personnel is a common concern of the landscape architecture industry.In order to systematically summarize the rainwater landscape ecological design techniques in Xi’an Settlement,this paper takes control of runoff flow,runoff infiltration,and runoff pollution.Based on natural process continuity,rainwater management,and ecological design techniques,this paper starts with the analysis of natural rainwater process,traditional residential rainwater process and stormwater management technology,and puts forward the ecological objectives of rainwater management in Xi’an settlements.Secondly,through the analysis of the overall layout of multiple related cases that have been completed in Xi’an fengxi new town and the corresponding analysis of its element organization,the influencing factors,overall layout,design essentials and element relationships are analyzed.Finally,there are various types of overall layout techniques and several kinds of organization techniques of the rainwater landscape in residential areas are proposed.The thesis is divided into six chapters,from the proposal of the theory to the study of practice.The first chapter reviews and studies the research background,researchpurpose,research significance,research summary,research method,research content,research framework.The second chapter introduces the concept definition and the landscape of rainwater,studies the theory of continuity of natural processes and related theories of stormwater management,studies the ecological design techniques and puts forward the logical framework of the paper.In the third chapter,the paper analyzes the natural conditions of the residential areas in Xi’an and the rain processes in the traditional residential areas,introduces the application of the rainwater landscape in the residential areas,and comes up with the ecological objectives of the rainwater landscape in the residential areas.In the fourth chapter,on the basis of investigation,four new types of residential areas in Xi’an Fengxi new town are analyzed from two aspects:overall arrangement and element organization,to get the current status of rain landscape.Chapter five,guided by the ecological goal,is to extract the ecological design techniques of the current rainwater landscape in the case analysis,and to summarize some ecological design techniques from the overall layout and factor organization.The sixth chapter summarizes the conclusions and innovations of the paper,and puts forward the prospects for the ecological design of rainwater landscape in Xi’an.The innovation of the paper: First,this paper puts forward 4 kinds of overall layout techniques of the rainwater landscape in residential areas,such as fish bone pattern,grid pattern,tree branch pattern and radiation pattern.Second,this paper puts forward 26 kinds of organization techniques of rainwater landscape elements in residential areas.It includes 12 kinds of retention and infiltration landscape ecological techniques,which involving rain gardens,sunken greens and permeable paving.It involves 12 kinds of transmission and filtering landscape ecological techniques,which including grass planting ditch,dry river and vegetation filter belt.And there are also 2 kinds of receiving and regulating landscape ecology techniques,which involving wet ponds and rain wetlands.