Landscape Design And Ecological Wetland Research Based On Lid Strategy

Urban rainwater and urban water shortage are important issues for the development of modern cities.Rainwater,as an important way to supplement urban water resources,has not been rationally utilized due to urban infrastructure,development and construction,planning concepts and other reasons.The disaster caused by rainstorm runoff has become the most troublesome problem in urban construction.Eco-sponge city,rainwater management,green city,landscape city and pastoral city have become the focus of the development and exploration of human society.However,there are few studies on rainwater and water resources supplement in built cities and towns,compared with newly built cities.The small reserved land area and the preliminary completion of urban green space system construction are the common characteristics of the built cities.Utilizing the existing conditions and on the basis of the determination of land use indicators for modern urban construction,minimally invasive operation on the city,improving the ecological structure of the city,and realizing the initial use of rainwater resources have become another design problem extending from urban planning to landscape construction.Cities,as the greatest aggregate in modern design,face problems from all aspects.This paper attempts to combine small-scale rainwater with urban inland rivers in order to optimize the existing allocation of water resources in small areas without changing the overall layout of urban water resources.LID strategy is a special technology for waterlogging control in the field of urban drainage put forward by the United States in the 1990 s.It is also a way to explore the realization of green cities.The process of stopping,flowing,switching and merging of urban water system has been re-deconstructed and the capillaries of urban water body have been improved.The main results of this paper are as follows:(1)Landscape design of urban water body should not only distribute effectively on pointsources,but also increase the frequency of water use in unit area appropriately,for secondary water use and accidental water supply.(2)Attempt to increase the frequency of water resources utilization through multiple water cycle in the key water resources use areas of urban.(3)Utilizing the conservation and recycling function of ecological wetland can avoid the waste of water resources caused by direct discharge of water body and poor pollution of water body to a certain extent.(4)Implanting functional design into landscape design and enlarging it can widen the visual scope of traditional landscape design and the limitations of superficial natural governance.(5)This study is to improve the basic development of the river ecological environment and the secondary utilization of the beach land formed by the decrease or even the break of the river ecological base flow due to the urban construction.(6)We attempt to study the improvement of the small environment and the possible pollution effects of the water body in a specific area after its collection through this project.Based on the above research,this paper discussed the effect of the combination of ecological wetland construction and landscape on water resources allocation in a small area,applied the traditional Chinese philosophy of "running water without corruption" to the real role of project practice,and tried to use LID strategy in a small scale.