北京市再生水灌区的再生水和雨水利用研究

Utilization of both reclaimed water and rain water in the reclaimed water irrigated district of Beijing

针对再生水灌区的再生水和雨水在灌溉期和汛期联合调度的难题,以北京市南红门再生水灌区为研究对象,基于MIKE11河流模型系统,建立了灌区河道、渠系调度模型,通过模型边界参数和闸坝调度规则率定,基于模型以河道为单元分别确定了灌溉期北野厂干渠和9座闸站的联合调度控制水位,汛期模拟调度结果表明：凤河在模拟调度规则下遭遇10~50年一遇重现期设计降雨时,模拟河湖蓄水量占进入河道水量的比例为13.0%~25.8%,研究为灌区再生水和雨水资源的联合利用提供技术支持。

In order to rise the efficiency of both relcaimed water and rainfall water utilization, we take the Nanhongmen reclaimed water irrigated district as an example to construct the water resource management model and predict the water resource schedule scenario. The MIKE11 model is adopted to construct the river network and irrigation canual to relocat the water resources. With considering the boundary condition, we cal- ibrated the model with the law of water gate schedule. Based on the model, the critical water levels during water irrigation period for 9 important water gates and Beiyechang main canal are proposed. However, for the flood season, the results showed that the fiver network could contain 13.0 t0 25.8 percent of water input the river to total precipitation water amount from 10 years to 50 years return period. The results showed important implication for both the reclaimed water and rainfall water utilization in the irrigated district.