Abstract
In recent years, it is recognized that the plant of the waterside is effective for a function of back protection. And many researchers push forward investigation of back of a river protection by vegetation. However, there is much concrete shore protection and, in a small river, stays because management is easy. In addition, a Small river is in a condition that it was become a waterway. When I plant a stalk plant in a river made a waterway, scouring and a deposition action will start it. As a result, the shallows and a deep water are gradually formed in stream bed and small water-route is made. By doing this method at a suitable interval, it is enabled to be rich in a scene and to also provide an aquatic living thing with rich nature. This research gave vegetation to the riverbank, investigated about change of a flow, and we examined as one of the natura-friendly river improvement of construction.
