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Abstract

Sponge city construction, as an important measure of ecological construction in China, can effectively solve a series of problems such as large annual runoff, serious non-point source pollution, regional water shortage, low utilization rate of rain and flood resources, unsustainable ecological benefits of water landscape and poor landscape functions in urbanization construction. This paper uses LID concept to construct sponge city in the old urban area of Kunming, to reduce the total runoff and promote the utilization of rainfall and flood resources so as to rebuild, upgrade and optimize the regional environment and provide some reference for the regional construction of small-scale sponge city.

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