Papers

Preliminary experimental methods for bed variations using artificial light and heavy materials

Takahiro ITOH, Takahiko NAGAYAMA, Kazuhiko KAITSUKA, Tomoya HAYAKAWA, Yasuharu WATANABE　　3

The optimum design used FEM analyses and the development of wooden check dam −Part１，The optimum design of all wood type wooden check dam−

Tomohiro CHIDA, Takanobu SASAKI, Ryu NODA, Takato INOUE, Yasuhiro MIURA　　14

Technical Reports

Forest conservation schemes and engineering for the purpose of restoring a stream environment 　−Implications for the Shigekurazawa Stream−
　　　Goichiro TAKAHASHI, Hidemichi IGUCHI　　24

Research Notes

Development and Application of a Sediment Runoff from a Mountain Watershed Simulator（SERMOW‐II）
　　　Ryosuke HIRASAWA, Yoshifumi SATOFUKA, Takahisa MIZUYAMA, Daizo TSUTSUMI　　32

Technical Notes

Embankment failure at the Fukushima Daiichi Nuclear Power Plant by the 2011 off the Pacific coast of Tohoku Earthquake
　　　Masakazu SUZUKI　　38