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1991年汛期,白山、丰满水库洪水调度取得了减灾损失2.48亿元,超发电量4.92亿千瓦时的双丰收。其主要经验是,1987年以来即成立了白～丰防洪调度领导小组,全面负责两库的洪水调度领导工作;领导小组各成员单位坚持团结治水,顾全整体利益;依靠科学治水,进行科学调度。1991年汛期,丰满大坝经两次复核,认为是安全的。根据降雨及洪水过程,确定7月31日起丰满水库泄流3000m~3/s,白山水库采用大发电泄流900m~3/s。又根据中长期预报,分别做出8月7日白～丰水库流域分别降雨30、50、70、100、150mm,8月13日两库流域分别降雨100、150mm的假想,进行调洪演算,确定不同的泄流量,为领导小组进行决策提供了科学依据。兼顾了上下游及防洪、发电效益,既为松花江起到错峰、削峰作用,又多拦蓄洪水31亿m~3。后期根据气象、水文、地震等预报资料,领导小组做出了8月13日关闸停止弃水的决定。实践证明,这个决定是完全正确的。
Flood season in 1991, Baishan, Fengman Reservoir Flood Disaster Management has made a disaster reduction losses of 248 million yuan, generating over 492 million kwh of double harvest. Its main experience is that since 1987, the Leading Group for Bai-Feng Flood Control Dispatch has been set up and is fully responsible for the flood control and leadership of the two reservoirs. The member units of the leading group adhere to the principle of uniting water resources and taking overall interests as a whole; and relying on science and water control for scientific dispatch. During the flood season of 1991, the Bhumibol Dam was reviewed twice and considered to be safe. According to the process of rainfall and flood, it is confirmed that the Fengman Reservoir discharge will be 3000m ~ 3 / s from July 31, and that of Baishan Reservoir will be 900m ~ 3 / s. According to the medium and long-term forecasts, the hypotheses of precipitation of 30, 50, 70, 100 and 150mm respectively on August 7 and December 100 in the two reservoirs of rainfall of 100 and 150mm in the two reservoirs were made, Determine the different discharge, for the leading group to provide a scientific basis for decision-making. Taking into account the upstream and downstream and flood control, power generation benefits, both played a wrong peak Songhua River, peak cutting effect, and more floods to block 3.1 billion m ~ 3. According to the late meteorological, hydrological, earthquakes and other forecast data, the leading group made a decision on August 13 to close the gate to stop the abandoned water. Practice has proved that this decision is entirely correct.