Research Of Green Space System Based On Sustainable Stormwater Management

With dozen years rapid urbanization,environment pollution and ecological degradation became urgent.18 th CPC National Congress raised Ecological Civilization policy.2014 MOHURD issued ―Sponge City Technic Guaidline‖ towards urban water crisis such as urban waterlogging and water scarcity,and started working on pilot cities.Urban green space is the main carrier of urban ecosystem.Urban green space system optimization is the most efficient way to improve urban ecosystem and restore urban water cycle.This research is aimed to build urban green layout on Low Impact Development(LID),Sponge City,Green Infrastructure(GI),etc.So the green land,superficial water,municipal pipe network can cooperate to manage stormwater efficiently.Urban green space planning can lead and control stormwater,in order to reduce the impact of development to urban ecological system,providing a new direction to sponge city.LID,Sponge City,GI provide references for the ongoing urban green space planning method.The research advice to protect and reinforce the water-green compound,make the green space rule the city framework,increase the green land connectivity,integrate 3S technology and landscape ecology,build feature integrated,flexible and diverse forms of ecological green space system.According to different condition,Tianfu new town eco-demanstration park,XPCC 51 town,Chenjiazhen eco-community,3 projects applied Low Impact Development(LID),Green Infrastructure(GI),Green Stormwater Infrastructure(GSI)accordingly.3 case studies pose green zoning theory in green system layout to elaborate the function and mechanism of stormwater management in green space system.Zoning the green land based on landscape ecology and system hierachy theories.Form green land layout in Patch-Corridor-Matrix pattern,and elaborate the process of urban green space planning.