Cascade reservoir ecological scheduling method for promoting fish oviposition

The invention provides a cascade reservoir ecological scheduling method for promoting spawning of fishes, which comprises the following steps: establishing joint distribution of target fish spawning number, water temperature and hydrological process increment, calculating available water quantity for spawning of target fishes at the downstream of a reservoir, and determining the earliest starting time of ecological scheduling for promoting spawning of target fishes in a cascade reservoir. Cascade reservoir ecological optimization scheduling; by means of the method, the spawning rate of target fishes in the cascade reservoir reach can be greatly increased, the influence of reservoir dam blocking on the river ecological environment is effectively relieved, and the method has good economic benefits and social benefits and is suitable for application and popularization. 本发明提供了一种促进鱼类产卵的梯级水库生态调度方法，包括建立目标鱼类产卵数与水温、水文过程增量的联合分布，计算水库下游目标鱼类产卵的可使用水量，确定梯级水库促进目标鱼类产卵生态调度的最早起动时机，梯级水库生态优化调度；通过本发明，可大幅度提高梯级水库河段目标鱼类产卵率，有效缓解水库大坝阻隔