- 1983 - 2004 植生河道の水理特性に関する研究
- 1982 - 2004 崩壊裸地斜面の侵食機構および緑化対策
- 1982 - 2004 Study on Sediment Production and Revegetation of Bare Slope due to Landslide
- 1998 - 2003 風倒木斜面の特性と二次災害対策に関する研究
- 1998 - 2003 Study on Caracteristics of Slope with Typhoon-derived Fallen Trees
- 1983 - 2000 Study on Hydraulic Characteristic of Vegetated Channel
- 1972 - 1990 流木災害の発生機構及びその阻止工法に関する研究
- 1972 - 1990 Study on Occurrence Mechanism of Woody Debris-Related Disasters and Method of Countermeasure
- 渓流保全を目的とした最適間伐手法および間伐材の有効利用に関する研究
- Research on Optimal Thinning Mehod and Advanced Utilization of Thinning Trees for Mountain Stream Conservation
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