日前,国家防汛抗旱总指挥部正式下达《三峡—葛洲坝水利枢纽2011年汛期调度运用方案》的批复。按照批复,三峡水库对长江上游洪水进行调控,使荆江河段防洪标准达到100年一遇,或100年以上至1000年一遇洪水,包括类似1870年洪水,控制枝城流量不大于80000m~3/s,配合分蓄洪区的运用,保证荆江河段行洪安全,避免南北两岸干堤溃决发生毁灭性灾害。根据城陵矶河段防洪要 Recently, the State Flood Control and Drought Relief Headquarters officially issued the “Three Gorges - Gezhouba Hydropower Project 2011 flood season scheduling program,” the reply. According to the reply, the Three Gorges Reservoir will regulate the floods in the upper reaches of the Yangtze River so that the flood control standards of Jingjiang reaches 100-year floods or 100-year floods to 1000-year floods, including floods similar to 1870, / s, with the use of flood diversion areas to ensure flood safety at the Jingjiang reach and prevent the occurrence of destructive disasters along the dry embankments on both sides of the North and South Strait. According to flood control in Chenglingji reach