城市的水循环与水文效应

城市水文效应的实质是城市所在流域的水文循环过程被干扰、破坏,因此,流域水循环的修复才是城市水文效应得以解决的根本出路。流域健康水循环依赖于河流功能的正常发挥,建议将0.4定为河流系统各河段水文区位指数的参考下限。基于流域水文循环修复的城市水文效应整治策略主要包括:实施节制的城市取排水模式,分散式的洪水治理方案,与城市化同步的雨水水文循环修复,基于水文区位的流域城镇体系规划。

Urban hydrological cycle and urban hydrological effect

The direct cause of changes of urban hydrological effect is that the hydrological cycle process have deen disturbed and destroyed,so to settle down this problem is the key of rehabilitating watershed hydrological cycle.The watershed healthy hydrological cycle lies on the natural function of river system.This article suggests an index value of 0.4 as a lower limit for hydrological uses in each river system.Then it discusses countermeasures to urban hydrological problems:controlling urban water uses and conse...