Construction of the sponge city by small catchment is going to be the fundamental approach to contiguously promote the development of sponge city during the next phase in China.An effective guiding scheme to guarantee the contiguous promotion of sponge city is the systematic scheme of sponge city.An area in Shenzhen is taken as an example,and the compiling method and challenges of systematic scheme of sponge city are explored,principally including the targets setting under small catchment,the structure of overall thinking,compiling the scheme of runoff emission reduction from the source,perfecting aquatic environment,promoting water safety by the orientation of objective and issue,as well as the integration of each scheme and arrangement of construction mission.
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