Research On Landscape Planning And Design Of Stormwater Management Planning In Tsinghua University Base On Theory Of Low Impact Development

In recent years, many cities in China suffer from the rainwater waterlog problems. Facing these threats, the Ministry of Housing and Urban-Rural Development of China has issued a technical guide in October, 2014 for building sponge cities, which advocates LID and many other measures to mitigate stormwater impacts.The core of sponge city is to emphasize the resilience in adapting to environmental changes. In terms of stormwater management, "sponge city" means that city could be capable of water absorbing, water storage, water infiltration, and water purification, from which the accumulated water could be released and utilized when needed. The fundamental goal of "sponge city" is to realize the natural storage, natural infiltration, natural purification.Low Impact Development(LID) is an ecologically-based stormwater management approach favoring soft engineering to manage rainfall on site through a vegetated treatment network. The goal of LID is to sustain a site's pre-development hydrologic regime by using techniques that infiltrate, filter, store, and evaporate stormwater runoff close to its source.This paper doing research on Low impact development in campus, which can provide a sample to how solve the problem of urban flooding and construction of water-saving society. Paper also trying to using hydrological model SWMM to increase precision of low impact development design system and exploring how to establish a reasonable, suit to the local condition planning framework in China.On the basis of analysis of research results, essay combined with the use of campus landscape design requirements and facilities dealing with water runoff needs to design landscape system with stormwater management functions. it would finally create a green space with beauty, resilience and ecologic multifunction landscape...