森林域における洪水流出抑制機能の評価

概要

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This study focuses on the soil-percolation function of forest basins, we quantitatively evaluated three basins that have different management of forest and vegetation, adopting the rate run-off and the lost precipitation curve. The characteristics of drainage basins are that Sakura river has mostly held an artificial forest; Shima river has nearly held a natural forest; Sasazawa No.3 has an artificial-plural layers forest. The rate of run-off and the lost precipitation was calculated and compared from the total precipitation which a scale differs to each drainage basin. The soil-percolation function(ability) is the highest in Sasazawa-3 drainage basin, while it is the lowest in Sakura river basin. And application of the Tank model in consideration of interception was tried. Consequently, the correlation of it improved compared with conventional Tank model.
前橋工科大学の論文
2005-03-31