Ecological flow determination method, system and equipment based on suitable survival area of aquatic organisms and medium

The invention discloses an ecological flow determination method, system and device based on an appropriate survival area of aquatic organisms and a storage medium. The method comprises the following steps: dividing a Fengshui year, a Pingchi year and a dry-water year; according to suitable survival conditions of dominant aquatic organism populations in the riverway, ecological guarantee targets of the rich, flat and low water years are determined; according to an ecological guarantee target and a hydraulics formula, calculating the size of the survival area, suitable for the dominant aquatic organism population, of the river section under different water levels or wetted weeks; and drawing a living area change curve suitable for dominant aquatic organism populations in the river section at different water levels, and determining the ecological flow of the river by combining the ecological guarantee targets of the rich, flat and low water years. According to the method, the ecological flow target of the river