The Exploration of Planning Implementing Approaches for Multiple-scale Urban Green Stormwater Infrastructure

Green stormwater infrastructure (GSI) has the important function of stormwater storage, which is a key component of Sponge City construction. The challenges in the construction of multiple-scale GSI in China are summarized, and then how to implement GSI through the integration with urban green space system planning is put forward. The composition and function of multiple-scale GSI and its relationship with the stormwater system of sponge city are elaborated. The relationship between GSI and green space system planning is discussed from the aspects of composition elements, functions, layout and so on, the points of combination in the planning objective, indicator, and layout are proposed, including remaining existing relevant indicators and adding new indicators. The new and existing urban green space system construction should be objective-oriented and problem-oriented correspondingly, and the planning points of urban green space system are analyzed. The key points of implementation for various types of green spaces based on their functions are put forwarded.