Study on joint dispatching scheme of mountain reservoir and plain reservoir in the Yerqiang River
To coordinate the water supply and water regulation relationship among the Xiabandi Reservoir and the Artasha Reservoir,and to fully utilize the comprehensive utilization functions of the two reservoirs,a single-objective optimal schedu-ling model was established based on maximum irrigation guarantee rate and maximum ecological water supply.Genetic algo-rithms were employed to solve the model.The results indicate that which aim at optimal storage and supply,are both optimal for Xiabandi Reservoir and Altashi Reservoir,which aim at optimal storage and supply,and can meet the needs of various de-partments in the basin;Taking into consideration the emergency water diversion requirements proposed by the autonomous re-gion for the key euphrates poplar forests in the basin and the current situation of unified scheduling of the basin's reservoir groups,the final recommendation is to adopt the plan with first storage and supply of upper reservoirs(Xiabandi)and later storage and supply of lower reservoirs(Artashi)under Goal 2,i.e.,a flood season ecological discharge of 1.07×109 m3,The irrigation assurance rate is 75.9%,and the average annual power generation is 2.502×109 kw·h,The annual water loss of reservoir is 2.6×108 m3.The research results have important implications for the guidance of the Yerqiang River water resource management.
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