A river pattern classification method based on the mechanism of longitudinal river regime adjustment and transmission and barrier

The invention relates to the technical field of water conservancy engineering, in particular to a river pattern division method based on a longitudinal river regime adjustment transmission and blocking mechanism. A water level drop value DeltaH of an upstream channel and a downstream channel of the river section and an elevation drop value DeltaZ of an upstream channel bed and a downstream channelbed are calculated, when DELTA H is not greater than DELTA Z, the river regime adjustment of the downstream channel is not transmitted to the upstream channel, and the river section is longitudinallyblocked. When DELTA H is greater than DELTA Z, that is to say, the river regime adjustment of the downstream channel is transferred to the upstream channel, the river section in this study is a longitudinal non-barrier section. The river type dividing method of the invention accurately analyzes the transmission and blocking mechanism of the longitudinal river regime adjustment, can accurately divide the research river ran