西北地区基于低影响开发理念的城市雨水花园设计

Low impact development design of urban rain garden in northwestern China

特殊的气候条件造成了西北地区干旱少雨的现状,雨水花园作为海绵城市建设的内容之一,以低影响开发为理念,有效的控制地表径流、收集并储存雨水。这些新理念新措施在一定程度上缓解了西北地区城市普遍缺水的问题,并起到涵养水源、改善城市生态环境的作用。通过对定西昌林花苑小区的雨水花园从用水结构,降雨特征及雨水利用设计深入剖析,提出雨水花园通过空间和景观营造雨水花园集水体系设计,雨水收集利用等具体措施,以期对我国西北地区景观设计提供理论指导和借鉴。

Special climate condition has caused the drought situation of northwestern China. Rain garden is one of sponge city construction measures. Based on low impact development concept,the rain garden could effectively control surface runoff,collect and store rainwater. To some extent,these measures can alleviate the common problem of water shortage in northwestern China,and play an effective role for water conservation,the urban ecological environment improvement.The water usage,rainfall characteristics and rainwater utilization in the rain garden of Changlin residential area were analyzed in details and put forward the measures of designing rainwater collection system in order to provide the relevant guidence.