Application Research Of LID Technology In Town Green Space Design

People blindly pursue the speed of urban construction,and causes a serious threat to the human settlement.In China,"urban sickness" are becoming more and more serious,especially waterlogging occurs frequently,sewage-infested and the natural ecological environment is gradually going to ruin.The environmental issues are disturbing.The government has put forward a number of policies and requirements for the management of small towns.And Foreign scholars have provides LID(low impact development)'s related concepts and techniques for such problems.How to apply this theory and measures comprehensively and systematically? How to put forward a lot of constructive suggestions for the construction of towns? Especially how to apply it in the design of town green space,these are all questions that deserve our deep thought and research.At first,this paper summaries and analyzes many problems in the design of green space in the process of Urbanization.Then,the connotation of LID is deeply analyzed,and summarizes the core concepts of "LID makes the urbanization construction and the natural protection unify harmoniously","source control","emphasizing natural characteristics" and "advocating the utilization".Next,I summarize the advanced nature of LID,namely ecological benefits,economic benefits and social benefits,and I generalize the classification of LID comprehensive management measures.After making a systematic review of the LID,this paper expounds the application methods in specific application level,including reducing pollutants and reducing runoff,and taking advantage of auxiliary methods in road;in the water system,we should emphasize the control and utilization of nature and rainwater,construct the water cycle,protect and restore the favorable water environment;In vertical design,we should control non-point source pollution,slow down peak time,practice and so on.This will help us analyze the necessity and feasibility of applying LID in urban green space design,on the other hand,it also helps us to form a practical,systematic and comprehensive application model of LID in line with China's national conditions.Finally,take the design of the entrance green space of the east entrance of ShuCheng County as an example,and discusses how the LID is applied to the design of town green space according to the national conditions policy.At the same time,the simulation results show that the model is feasible and has extensive benefits.This paper mainly deals with LID technology and urban green space design.I sort out and fully understand LID's comprehensive and systematic knowledge,and under the background of the implementation of the new urbanization construction,a set of LID technology model which conforms to the national conditions of our country is summarized.Then apply and test it with practical projects.Finally I hope this paper can provide more references and suggestions for the design of urban green space and the implementation of LID.