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0前言随着城镇化的高速发展,屋面、道路、地面等设施建设导致了下垫面硬化,影响了以往水资源循环模式。70%的降雨形成径流,仅有不到30%的雨水能够渗入地下,造成内涝和雨水资源流失,出现“逢雨即涝,雨后即旱”情况。因此,海绵城市建设应运而生。海绵城市是指通过加强城市规划建设管理,充分发挥建筑、道路和绿地、水系等生态系统对雨水的吸纳、蓄渗和缓释作用,有效控制雨水径流,实现自然渗透、自然积存、自然净化的城
0 Preface With the rapid development of urbanization, the construction of roofing, roads and ground facilities has led to the hardening of the underlying surface and affected the mode of water resources circulation in the past. 70% of the rainfall is runoff. Only less than 30% of the rainwater can seep into the ground, resulting in the loss of waterlogging and rainwater resources. Therefore, sponge city construction came into being. Sponge city refers to by strengthening the urban planning and construction management, give full play to the building, roads and green spaces, water systems and other ecosystems to absorb rainwater absorption, storage and release of slow release, effective control of runoff to achieve natural infiltration, natural accumulation, natural purification city