On October 11, 2015, the State Council issued the “Guiding Opinions on Promoting the Construction of Sponge Cities”. “Sponge city” is simply a combination of pollution prevention and ecological restoration of urban rivers, lakes and groundwater systems, so that cities can be like a sponge to adapt to environmental changes and respond to natural disasters with good “flexibility” when it rains Absorb water, store water, seep water, purify water, and “release” and use the stored water when needed to prevent urban waterlogging.
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