海绵城市,指的是城市像海绵一样,降雨时能就地或就近“吸收、存蓄、渗透、净化”径流雨水,补充地下水、调节水循环,在干旱缺水时有条件将蓄存的水“释放”出来并加以利用,从而让水在城市中的迁移活动更加“自然”。海绵城市以“慢排缓释”和“源头分散”控制为主要规划建设理念,追求城市人水和谐,已经成为各国城市建设的重要选择。英国源头入手,一举两用为解决日益严重的水资源短缺问题和提升伦敦等大城市的市政排水能力,英国政府积极鼓励在居民家中、社区和商业建筑设立 Sponge city, refers to the city like a sponge, when the rain can be on or near the “absorption, storage, infiltration, purification ” runoff rainwater, replenish the groundwater, regulate the water cycle, in the event of drought conditions will be stored Water “releases” and uses it to make “water” migration more “natural” in the city. Sponge city to “slow release ” and “source dispersal ” control as the main planning and construction concept, the pursuit of urban water harmony, has become an important choice for urban construction in various countries. Starting with the British source, to serve each other In order to solve the increasingly serious shortage of water resources and improve the municipal drainage capacity of large cities such as London, the British government actively encourages the establishment of residential buildings, community and commercial buildings