【摘要】 水量水质联合调度是现代水利工程调度面临的一种新的调控模式。本文将闸坝水量水质联合调度模型、遗传算法耦合到流域综合管理模型SWAT中,从流域尺度上探讨了闸坝的合理调度模式,并在北京市温榆河流域进行了实例研究。研究表明:(1)基于SWAT模型,建立耦合闸坝系统的温榆河流域水量水质模型,较好地模拟闸坝影响下流域的水量水质演变过程,为温榆河流域闸坝调度研究提供支撑。(2)引温济潮二期工程的实施后,温榆河干流下游水量将有所减少,水环境状况将进一步恶化,尤其是在鲁疃闸上游地区水质浓度显著提高。闸坝的水量水质优化调度对改善全流域水环境状况,提高水资源利用率有积极的作用。研究将为温榆河流域及其他多闸坝流域水污染整治提供技术支撑和借鉴,同时也对北京市经济社会的可持续发展具有重要的意义。更多还原

【Abstract】 Joint operation of water quantity and quality is a new mode of dam operation at present.This paper couples a joint operation model of water quantity and quality with the genetic algorithm and a SWAT model,and explores a reasonable operation of dams in the basin scale,with a case study of the Wenyu river catchment in Beijing.The results show that the water quantity and quality coupling model developed for this catchment produces a good simulation of the responses to the construction of dams and flood gates,and it provides a technical support to the operation of these structures.Application of the model to the water transfer project from the Wenyu river to the Chao river shows that this project causes a decrease in the runoff of the Wenyu mainstreams and a further deterioration in water quality,particularly in the upstream of Lutuan dam,while the water environments and water use of the entire catchment can be improved through an optimized operation of Shahe reservoir,Lutuan dam,Xinpu dam and Weigou dam.This study provides reference and support to water pollution control in the Wenyu catchment and the other similar catchments,and it is of great significance to the sustainable development of Beijing.更多还原