Research On LID Landscape Planning And Design Strategy Of Caiyuan Village,Haiyuan County,Ningxia

Haiyuan County,Ningxia is located in the hilly and gully area of the Loess Plateau.The terrain is undulating and the ground is covered with thick collapsible loess.The concentrated rainstorm in summer often causes short-term waterlogging,surface subsidence,runoff erosion,and other problems.Existing research on rural stormwater management and control issues mostly focuses on water supply and drainage facilities and sewage treatment in China,which is not applicable to the extreme climatic conditions and fragile soil structure in the hilly and gully area of the Loess Plateau.Based on the above background,this article has sorted out the practice and research of stormwater management and control at home and abroad,and has combined with the local wisdom of the Loess Plateau in China.This article has also selected Caiyuan Village in Haiyuan County as a typical research object.First,it has analyzed the regional characteristics of the rural stormwater management and control problem,and then analyzed the spatial mechanism of its storm flood formation,and finally put forward a regional rural stormwater management and control system and its landscape construction strategy.This thesis consists of 6 chapters.The first chapter is the introduction.This chapter mainly introduces the research background,research object,research purpose and research significance.Through sorting out the development history and research status of stormwater management and control at home and abroad,it points out the drawbacks of dealing with rain and flood problems in rural areas,and proposes the research content,research methods and writing framework of this article.The second chapter distinguishes and analyzes the concepts related to the research,sorts out the basic theories used in the research,and expounds the relationship between the basic theories and the research and the application of the basic theories in this article.This chapter also analyzes and draws on the case of local wisdom in the hilly and gully regions of the Loess Plateau,and finally put forward the analysis framework and technical route of this article.In the third chapter,the article introduces the location background and natural conditions of Caiyuan Village,Haiyuan County,Ningxia,and analyzes the causes of rain and flood phenomena.In the fourth chapter,the research takes the rain and flood problem in Caiyuan Village as the premise,and evaluates the landscape pattern of the built-up area in Caiyuan Village through watershed analysis,spatial pattern construction and rainwater process analysis,and finally summarizes the characteristics of the pattern that led to the rain and flood problem.In the fifth chapter,the study puts forward the landscape strategy of storm flood management and control construction from three levels——landscape pattern improvement,underlying surface design,and LID measure application.In the sixth chapter,the article summarizes the research content of the LID construction landscape strategy based on rain and flood problems in the built-up area of Caiyuan Village,and looks forward to providing help for the construction of rural stormwate management and control in the hilly and gully area of the Loess Plateau.There are two main conclusions of this research.The first point is to analyze the spatial mechanism of the rainwater problem in Caiyuan Village,Haiyuan County based on the “source-sink” model and the principle of “pattern-process-function”.The second point is to put forward the LID construction landscape strategy of regional countrul stormwater management and control from three levels——landscape pattern improvement,underlying surface design,and LID measure application.