基于水量平衡的城市雨水利用潜力分析模型

A potentialities evaluation model of city rainwater utilization based on water balance

介绍城市雨水资源化利用的概念,建立了基于水量平衡的雨水利用潜力分析模型,提出了以水量平衡为基础,考虑降雨、蒸发、径流、入渗和土壤蓄水量等水文物理过程的城市雨水资源化利用潜力分析方法;将其与传统经验公式法进行对比,并以郑东新区为例进行实证分析.结果表明:该模型和方法有效,并具有考虑因素全面、物理过程明了、计算结果置信度高等优点.

The concept of potentialities of city rainwater utilization is introduced. A potentialities evaluation model of city rainwater utilization is built based on water balance. And a potentialities analysis method is put forward which is based on water balance principle and taking hydrological physical process such as the precipitation, evaporation, runoff, infiltration, soil storage water into account. Then it is compared with the traditional empirical formula method. A case study of Zhengdong New District is given. The outcome indicates that the water balance model is better than the empirical method due to that the former considers more hydrological factors and has more explicit physical process, and the results are more truthful.