山地河川における土砂流出ポテンシャルパワーを用いた流出土砂量予測

抄録

Power of sediment discharge potential in river basins P [Nm/year] defined by the work of annual precipitation in river basins has proved to be effective to estimate sediment discharge in 10² to 10⁴ km² scale basin. So, its effectiveness is examined when it is applied for the estimation of those less than 10² km² scale subject to debris control projects, reflecting confluence network of river system and geological feature. Consequently, its usefulness is confirmed and sediment yield is largest in accretionary complex for same values of the power of sediment discharge potential.