Study on rational allocation of water resources in Taiyuan City

Chinese. 探讨太原市水资源的合理配置方案，使有限的水资源得到合理利用，促进经济与社会的可持续发展。以区域经济发展与水环境保护相协调为目标，建立水资源多目标优化配置模型，并利用大系统分解协调方法，针对不同水平年（2010，2020，2030年），进行太原市水资源优化配置研究。在现有供水工程、常规节水方案条件下，太原市水资源供需矛盾日益加剧，在50%和75%水文年份，太原市缺水率分别由2010年的不足1%和7.7%均上升为2030年的35%以上；采用高节水方案时，在50%和75%水文年份，到2030年太原市缺水率为26%～31%。要深度解决太原市缺水问题，应实行开源节流与污染治理并举的措施，在进一步加大节水力度的基础上，增大污水处理回用和引黄力度。

English. This research is to explore rational allocation scheme of water resources in Taiyuan City to use limited water resources rationally and to promote sustainable development of economy and society. The multi-objective optimal allocation model of water resources is established by taking the economic development and water environment protection in corresponding area as the objective in this paper. Based on this, aiming at different standard years (2010, 2020 and 2030), the optimal allocation of the water resources in Taiyuan City are analyzed by using large-scale system decomposition-coordination method. The supply and demand contradiction will intensify increasingly under condition of existing water supply engineering and general water-saving scheme. The water shortage ratio in the whole city will rise from inadequacy 1% and 7.7% (2010) to more than 35% (2030) in 50% or 75% hydrological year; As adopting high water-saving scheme, the water shortage ratio in the whole city will be 26% to 31% in 50% or 75% hydrological year. To solve the problem of water shortage fundementally, the measures including broadening sources of income and reducing expenditure and dealing with sewage must be taken simultaneously. Based on increasing water-saving force further, the sewage treatment of various industrial economic departments and diversion from Yellow River must be stressed.