Methodology for Calculating Water Supply for Irrigation from Reservoirs of Multifunctional Purpose (on the Example of China and Belarus

Reservoirs with multifunctional purposes are the most widely used as sources of water for irrigation. In China, a large number irrigation systems have been created using reservoirs flood prevention, irrigation, industrial and agricultural supply. Belarus, Soligorsk, Lyuban, Petrovich, Pogost other The useful (regulating) volume reservoir consists separate components calculated each consumer in basis hydrological feasibility study. Thus, intended should provide required capacity system. When determining reservoir, total requirements various (water supply, hydropower, etc.) calculated. For consumer, design supply is assigned appropriate method consumption used. count on 95–97 % availability runoff, – 75–80 zones moderate excessive moisture. arid, desert semi-desert regions where lack dry years can lead to crop losses, expected be 90–95 secure. volumes costs must cover needs plants within established time frame year estimated availability. paper provides formula weighted average rate A methodology presented calculating which flow regulation two consumption. proposed entrained sediments stages their movement. suspended bottom entering reservoir.