景观雨水系统修复城市水文循环的技术与案例

Technologies and Cases Study of Landscape Stormwater System Repairing Urban Hydrological Cycle

中国城市发展过程中的水文问题日益严峻,将景观与雨洪控制利用相结合能够修复水文循环、减缓洪涝灾害、控制水体污染,对景观本身亦有多重效益。介绍了利用景观控制雨洪的新理念、景观雨水设施分类和水文分析要素,总结了基于不同水文控制目标时,景观雨水设施的选择以及规模计算方法,提出了基于水文学的场地规划、竖向和植物设计要点,并通过实际案例分析了景观雨水系统在调节城市水文循环过程中发挥的作用。

With the increasing hydrological problems in the fast development of Chinese cities, the combination of landscape and stormwater control and utilization could play an important role in repairing hydrological cycle, reducing flood risk, controlling water pollution and other aspects, as well as providing multiple benefits to the landscape itself. The paper introduces the new concept of using landscape to control stormwater, classification of landscape stormwater facilities and hydrological analysis in the design process, and also summarizes landscape stormwater facilities selection based on different hydrological control objectives and calculation methods of facility size. Landscape design suggestions on site planning, vertical and plant design are proposed. At last, the effects of landscape stormwater system on urban hydrological regulation are analyzed with cases.