Paper

Fundamental study on sediment yield due to freeze and thaw process ―Field observation on bare slope in Tanakami Mountains and its numerical simulation―

Daizo TSUTSUMI, Masaharu FUJITA, Motohiro ITO, Hiroyuki TESHIMA,Toyoaki SAWADA, Ken'ichiro KOSUGI and Takahisa MIZUYAMA　3

he influence of the ratio of forested area on suspended sediment discharge in the upper part of the Agatsuma River basin

NAMBA Yohe, HOTTA Norifumi, SUZUKI Masakazu and SHUIN Yasuhiro　14

Long term change in landslide area in Ikawa Lake catchment using aerial photographs and GIS

Ambika DHAKAL, Satoshi TSUCHIYA and Okihiro OHSAKA　25

 

Technical Reports

Reproduction of the flood that occurred by outburst of Takaiso‐yama landslide dam

Yoshifumi SATOFUKA, Kousuke YOSHINO, Kiichiro OGAWA, Toshio MORI,Takahisa MIZUYAMA and Junichiro TAKAHAMA　32

Predictive equation of unit weights, shear−strength parameters and permeability of grus using by simplified dynamic cone penetrometer hardness and grain size

Tsuyoshi Wakatsuki, Yoshinori Sasaki, Yukiya Tanaka and Yukinori Matsukura　38

Study on the applicability of the simplified snowmelt prediction method to the Imokawa river basin, Niigata prefecture, Japan

Jun'ichi KURIHARA, Takao YAMAKOSHI, Michiya IRASAWA, Katsuo SASAHARA, Masaaki TAKAHASHI and Mario YOSHIDA　47

Research Notes

Prediction of flood peak discharge at landslide dam outburst

Yoshifumi SATOFUKA, Kousuke YOSHINO, Kiichiro OGAWA and Takahisa MIZUYAMA　55

Application the empirical method of assessing the potential of slope failures to Niigata‐ken Chuetsu Earthquake

Nobutomo OSANAI, Taro UCHIDA, Tomoyuki NORO, Satoru YAMAMOTO, Satoshi ONODA,Toko TAKAYAMA and Kentaro TOMURA　60