セグメント2河道を対象とした河道掘削後の河道変化予測に基づく治水・環境機能の一体的評価に向けた試み
キーワード:
river improvement,
segment-2 river,
comprehensive estimation from the viewpoint of flood control and environment
2007 年 13 巻 p. 375-380
詳細
2007 年 13 巻 p. 375-380
In segment-2 river, when low-water channel is widened, sometimes, sediment piles up, plants grow there and deposit fme sediment, and low-water channel narrows as a result. We developed 2-dimension river bed variation analysis model that can simulate these phenomenon and applied this model in Ongagawa River. With this model, we calculated the change of physical environment and vegetation after river improvement, tried to compare river improvement plans comprehensively from the view point of flood control and environment, and proposed the framework of monitoring and river management after river improvement.
