雨水花园 "海绵城市原来可以跟园林景观融合得这么好！"日前，2025年度杭州市海绵城市优秀项目研讨会召 开，部分市级职能部门及各区、县（市）住建局海绵城市建设工作相关负责人，建设、设计、施工单位 代表走进上城区杭政储出〔2023〕3号地块项目现场观摩。一处处"藏功能于景观"的海绵设计，让参会 者频频点赞，也为海绵城市"后示范"时期的城市建设提供了"杭州思路"。 去年9月，杭州在国家海绵城市建设示范城市绩效评价中获得"A"等级，海绵城市建设进入全新阶 段。"作为国家海绵城市建设示范城市，杭州在创建期间摸索出了一些富有特色的路径做法。如何在海 绵城市'后示范'时期持续有力推进这项工作，是不小的挑战。"市建委相关负责人表示，下一步将在新 建项目中强化海绵城市与景观、民生需求的结合，推动海绵城市建设向更精细、更贴合民生需求的方向 迈进，建设更多"好看""好用""好管"的海绵城市项目，助力打造安全可靠、美丽宜居的韧性城市。 据了解，该项目积极践行"景观化海绵、艺术化呈现"理念，将雨水花园、透水铺装、调蓄池等设 施、技术与景观设计巧妙融合，建设雨水花园、旱溪等，让原本功能性的雨水滞留净化设施变成居民茶 余饭后赏景休闲的" ...

Core Viewpoint - Chongqing is actively implementing sponge city construction, utilizing various measures to enhance urban water management and reduce flooding risks through innovative designs and infrastructure improvements [1][2][3]. Group 1: Sponge City Construction - Chongqing has completed 2,055 sponge city projects, with 535 compliant drainage areas covering 845.8 square kilometers, accounting for 46.2% of the urban built-up area [1]. - The city employs techniques such as infiltration, retention, storage, purification, utilization, and drainage to manage rainwater effectively [1]. Group 2: Rainwater Gardens - Rainwater gardens, referred to as "sponge cells," are designed to collect, retain, and purify rainwater, contributing to groundwater recharge and landscape irrigation [2][3]. - These gardens utilize native plants that can withstand flooding and drought, enhancing their ability to retain rainwater [2]. Group 3: Infrastructure Innovations - The cloud lake in the data valley has a storage capacity of approximately 4,000 cubic meters, controlling rainwater runoff for an area of about 200,000 square meters [3]. - The integration of permeable pavements and bioretention areas along roads helps to slow down rainwater runoff and improve water quality [3]. Group 4: Sports Facilities Adaptation - The Daitianwan Sports Center has been retrofitted with a rainwater reuse system, allowing for the collection and utilization of rainwater for field maintenance and sanitation [4][5]. - Green roofs have been introduced in indoor venues to enhance rainwater retention, creating over 3,000 square meters of green space [5]. Group 5: Industrial Applications - The Chongqing Chemical Industry Co., Ltd. has implemented sponge facilities in its factory area, including 14 rainwater gardens to manage stormwater and improve the working environment [6][7]. - The integration of rainwater gardens with parking lots in Liangping District enhances both stormwater management and aesthetic appeal [7]. Group 6: Future Developments - Chongqing plans to continue its sponge city initiatives by leveraging IoT and big data technologies, aiming to create a more livable and intelligent urban environment [7]. - The city is also focused on developing a "sponge industry chain" to support local enterprises in creating suitable sponge technologies and products [7].