The differences are as follows: artificial flood peak: concentrated large-flow discharge, artificial flood peak, used to scour the river bed, reduce siltation, or for other purposes; Concentrate on large discharge and artificial flood peak, which can be used to scour the river bed, reduce siltation, or for other purposes; Improper reservoir operation, the discharge is greater than the inflow flood, also known as artificial flood peak; Under normal operation, the reservoir should start to supply water to meet the requirements of promoting profits.