1. Temporary fish culture by hanging water is a technology that blocks the river bed with wooden boards, makes the river water form a flowing pond in it, and then temporarily puts the fish into it.

2. One advantage of this technology is that there is no need to build other projects, just adjust the flow direction of the river, make the riverbed form a tidal flat, and then close it with wooden boards to form a temporary pond inside. This is conducive to the rapid drifting and temporary release of fish without destroying the river environment.