珠三角河网地区海绵城市建设路径探讨--以中山市为例

Discussion on Construction Path of Sponge City in Pearl River Delta--Taking Zhongshan City as an Example

近年来,珠三角地区快速城镇化,城市发展面临巨大的环境与资源压力,旧的城市发展模式难以支撑迅速增长的人口以及快速发展的城市。中山市作为典型的珠三角河网地区,同样也面临以上困境,为了追求城镇建设和水环境的和谐共存,一直在积极探寻新的城市发展方式。海绵城市是现代城市生态化建设的新型理念之一,将作为城市发展理念和建设方式的转型。介绍了中山市结合本地特征将年径流总量控制率目标逐级分解到不同尺度的排水分区的分解原则及流程;在海绵城市的实现过程中,如何结合本地特征,根据不同问题需求.不同城市建设状态,制定不同的规划策略和方案;针对中山市的行政及自然特征,提出适合中山市的海绵城市管理要点。并以中山市海绵城市建设经验为例,从海绵城市建设措施选取、水安全提升、水环境改善3个方面来探讨珠三角河网地区海绵城市建设的路径。中山市在海绵城市建设方面的探索,可作为珠三角河网地区海绵城市建设的样板。

In recent years,with rapid urbanization in the Pearl River Delta region,the urban development is also facing huge pres-sure of environment and resources.Old urban development model is difcult to support the rapid growth of population and the rapid development of cities.Zhongshan City,as a typical Pearl River Delta region,is also facing the above difficulties.In order to pursue the harmonious coexistence of urban construction and water environment,it has been actively exploring new urban development mode.Sponge city is one of the new ideas of modem urban ecological construction,which will be regarded as the transformation of urban development concept and construction mode.Prineiple and process of decomposing the total annual runoff control rate target into dif-ferent scale drainage zones,which combined with local characteristics of Zhongshan City was introduced.In the process of realizing sponge city,how to make diferent planning strategies and schemes according to different problems,requirements and different urban construction states,combined with local characteristics was introduced.The key points of sponge city management suitable according to the administrative and natural characteristics of Zhongshan City were put forward.Taking the construction experience of sponge city in Zhongshan City as an exarmple,the path of sponge city construction in the Pearl River Delta river network area was discussed by three aspects:sponge city construction measures selection,water safety promotion and water env ironment improvement.The explo-ration of sponge city construction in Zhongshan City can be used as a model for the construction of sponge city in the Pearl River Delta.