Laboratory of Erosion Control (2006)

Staff    Professor  : Mizuyama, Takahisa, Dr. Agric. Sci.

           Associate Professor : Satofuka, Yoshifumi, Dr. Eng.

           Assistant Professor : Kosugi, Ken’ichirou, Dr. Agric. Sci.

Students and research fellows

           Doctor's program: (4)

           Master's program: (8)

           Undergraduate  : (3)

A. Research Activities (2006.4-2007.3)

A-1. Main subjects

a)  Mechanism of sediment movement

Basic research has been carried out on debris flow, flash flood, and shallow landslide. The relationship between shallow landslide and underground pipe flow and the flow in bedrock are studied particularly.

b)  Countermeasures to prevent or reduce sediment disasters and the Sabo-planning being compatible with environmental concerns. More effective permeable dams are
experimentally investigated in order to store the excessive sediment and, at the same time, not to damage the eco-system established in the streams. A function of a series of slit sabo dams was studied by flume experiments and computer simulation.

c)  Forest influence on the hydrologic cycle

Elements controlling hydrologic cycle in forest are studied. Effects of forest soil hydraulic properties on water discharge from forested watersheds are analyzed by laboratory experiments, field measurements, and numerical simulation methods. Evapo-transpiration is one of the major factors. Models to interpret the phenomena are built.

d)  Sediment movement and integrated sediment management in river system

Sediment production process and sediment movement process in mountain region are investigated using a video camera system and turbidity meters. A numerical model for calculating sediment routing is also developed. Using these results, the sediment management for mitigating sediment-related disaster and providing better natural environment from mountains to seashore is studied.

e)  Bedload measurement with hydrophone and pits

New bedload measurement method is developed. One is hydrophone; a steel pipe is installed on a torrent bed and number of pulses caused when sand and gravel hit the pipe is counted through a microphone. Another one is a pit sediment sampler; a pit is prepare on a torrent bed. Sediment trapped in it is weighted continuously Sediment related disasters

f)  Debris flow disasters were surveyed in Okaya city. Damages of houses and situation of flash flood were mainly focused.

g)  Buffer green belt against sediment hazards

The effects of trees against debris flow and landslide are studied to design buffer green belts. Infiltration and water storage characteristics are studied in different tree kinds.

A-2. Publications and presentations

a)  Publications

Books

Mizuyama, T., Y. Satofuka and K. Nakatani; Kanako Ver.1.00, Sabo Laboratory of Kyoto University and Sabo Technical Center (STC), 2006

Kosugi, K. (coauthoring), Forest Hydrology −Exploring the Fate of Water in Forest Ecosystem, Morikita, 2007


Original papers

Oda, A., T. Mizuyama, Y. Hasegawa, T. Mori and K. Kawata; Experimental study of process and outflow rate when landslide dams outburst, Jour. of JSECE 59-1, 29-34, 2006

Kinoshita, A., M. Fujita, T.Mizuyama and T.Sawada; The decrease in the dissolved oxygen concentration caused by sediment flushing from sabo dams and its prediction, Jour.of JSECE 59-2, 13-20, 2006

Liang, W.,K.Kosugi, Y.Hayashi, T.Mizuyama; Methods for determining soil hydraulic parameters related to vertical rainwater infiltration, Jour.of JSECE 59-3, 3-12, 2006

Mizuyama,T., Y.Satofuka, K.Ogawa, T.Mori; Estimating the outflow discharge rate from landslide dam outbursts, Disaster Mitigation of debris flows, slopefailures and landslides, vol.1, Proceedings of INTERPRAEVENT, 365-378, 2006

Satofuka, Y. and T. Mizuyama: Numerical Simulation on Debris Flow Control by a Grid Dam, Proc. of the 6th Japan‐Taiwan Joint Seminar on Natural Hazard Mitigation, CD-ROM, 2006

Usuki, N., Y.Tanaka, T.Mizuyama; Investigation of the distribution of long-traveling landslides, Disaster Mitigation of debris flows, slope failures and landslides, vol.1, Proceedings of INTERPRAEVENT, 101-112, 2006

Yasuda,T., S.Tsuchiya, T.Mizuyama, K.Matsumura, H.Ochiai, M.Takahashi and Wendong Tang; Topographic effects of the seismic slope displacement and ground acceleration by earthquake using a dynamic response analysis, Jour. of JSECE, 59-4, p.3-11, 2006

Kasai, S., T.Mizuyama and S.Inagaki; Debris flow comtrol with steel open-type Sabo dams constructed at base point, Jour. of JSECE, 59-4, p.48-53, 2006

Hashinoki,T., T.Mizuyama, K.Sato and T.Mizuyama; Research on sediment yield and sediment discharge which considers timing of sediment yield, Jour. Of JSECE, 59-5,p.15-22, 2007

Taniguchi,K., T.Matsubara, T.Kumakura, T.Kikui and T.Mizuyama; Case study about sediment control by a series of slit sabo dams, Jour. Of JSECE, 59-5,p.43-55, 2007

Oda,A., T.Mizuyama,K.Miyamoto and Y.Hasegawa; The estimate method of erosion rate of cohesive materials, Jour. Of JSECE, 59-5,p.56-61, 2007

Satofuka, Y. and T.Mizuyama; Typhoon 0410 causes sediment disaster in Tokushima prefecture, Jour. of Disaster Research 2-1, p.37-43, 2007

Satofuka,Y., K.Yoshino, T.Mizuyama, K.Ogawa,T. Uchikawa and T. Mori; Prediction of floods caused by landslide dam collapse, Annual Journal of Hydraulic Engineering, JSCE, Vol.51, p.901-906、2007

Tsutsumi,D., M. Fujita, M. Ito, H. Teshima, T. Sawada, K. Kosugi and T. Mizuyama；Fundamental study on sediment yield due to freeze and thaw process―Field observation on bare slope in Tanakami Mountains and its numerical simulation―,Jour.of JSECE 59-6, p.3-13, 2007

Satofuka,Y., K. Yoshino, K. Ogawa, T. Mori, T. Mizuyama and J. Takahama；Reproduction of the flood that occurred by outburst of Takaiso‐yama landslide dam, Jour.of JSECE 59-6, p.32-37, 2007

Satofuka, Y., K. Yoshino, K. Ogawa and T. Mizuyama；Prediction of flood peak discharge at landslide dam outburst, Jour.of JSECE 59-6, p.55-59, 2007

Seyed Hamidreza Sadeghi1, T.Mizuyama, and Babak Ghaderi Vangah; Conformity of MUSLE Estimates and Erosion Plot Data for Storm-Wise Sediment Yield  Estimation, Terr. Atmos. Ocean. Sci., Vol. 18, No. 1, 117-128, March 2007

Mizuyama, T.; Countermeasures to cope with landslide dams – Prediction of outburst discharge - , The 6 th Japan-Taiwan Joint Seminar on Natural Hazard Mitigation, 2006, CD, 2006

Seyed Hamidreza Sadeghi, T.Mizuyama; Discussion to Application of the USLE and sediment delivery models in a mountainous catchment by Ambika Dhakal, S.Tsuchiya and O.Osaka, Jour. of JSECE, 59-4, p.58−59, 2006

Hayashi, Y., K. Kosugi, and T. Mizuyama, Changes in pore size distribution and hydraulic properties of forest soil resulting from structural development, J. Hydrol., 331, p.85-102, 2006


Reviews

Mizuyama, T.; Past, present and future of the Japan Society of Erosion Control Engineering,  Jour. of JSECE 59-2, 1-2 and 2006

Mizuyama, T.; Sediment related hazards and information, Sabo and Chisui, 39-3,172 and p. 7-8、2006

Mizuyama, T.; The present condition of the land use regulation for sediment disaster mitigation, Journal of Natural Disaster Science 78 (25-2), 139-142 and 2006

Mizuyama, T. and Y. Satofuka; Processes of landslide dam outburst and prediction of the peak outflow discharge, 2006 Annual report of Sabo Technical Center, 1-25, 2006

Mizuyama, T.; Simulation and its application to Sabo, JACIC Information 84 (21-4), 2007

Mizuyama, T.; Prevention and mitigation of sediment related hazards, Journal of Natural Disaster Science, 25-4, 421-422 and 2007

b)  Conference and seminar papers presented

The 117th annual meeting of Japanese Forestry Society (7 presentations)

2006 annual meeting of Japan Society of Erosion Control Engineering (22 presentations)

2006 annual conference of American Society of Soil Science (4 presentation)

A-3. Off-campus activities

Membership in academic societies (roles)

Mizuyama, T.: Japan Society of Erosion Control Engineering (director, president), Japanese Geomorphological Union (member of committee), Japan Society of Revegetation Technology (councilor)

Satofuka, Y.: Japan Society of Erosion Control Engineering (member), Japan Society of Civil Engineering (member), Japan Society for Natural Disaster Science (member)

Kosugi, K.: Japan Society of Erosion Control Engineering (member), Japanese Forestry Society (member), Japan Society of Hydrology & Water Resources (member)


Research grants

Monbusho research grant:

General scientific research (B) (2); Joint Research on control of floods and sediment movement in Semalang, Brantas and Toba Basins (Fujita and Satofuka)

General scientific research(C) (2); Sediment Run-off from sabo dams and its impact on river environment (Head: Fujita, Mizuyama)

General scientific research (A) (1); Development of a combined rock-soil-plan-atmosphere model, and flood and draught predictions at ungauged mountainous watersheds (Head: Tani, Member: Kosugi et al.)


A-4. International cooperations and overseas activities

International Meetings

Kosugi, K: Annual conference of American Society of Soil Science (Presentation)


Membership in international academic societies

Mizuyama, T.: IAHR, IAHS, IUFRO-J, International INTERPRAREVENT, Bedload Research International Cooperative (BRIC)

Satofuka, Y.: IAHR

Kosugi, K.: SSSA, IAHS, IUFRO-J, AGU
 

International joint researches, overseas research surveys

Satofuka, Y.: Joint Research on control of floods and sediment movement in Semalang, Brantas and Toba Basins (Indonesia)


Editors of International Journals

Mizuyama, T.: Editor of Journal of Hydrological Sciences

B. Educational Activities (2005.4-2006.3)

B-1. On-campus teaching

a)  Courses given

Undergraduate level: Theory of Erosion Control 1,2 (Mizuyama), Practice in Erosion Control (Mizuyama, Satofuka), Planning of Erosion Control (Mizuyama, Satofuka), Reading of Foreign Literature II (Mizuyama, Satohuka), Special Seminar on Erosion Control 1,2 (Mizuyama, Satofuka), Basic Science for Forest and Biomaterials III (Mizuyama), Forest and Biomaterial Science III （Satofuka）, Laboratory Course in Forest and Biomaterials Science III (Mizuyama, Satofuka, Kosugi)

Graduate level: Theory of sediment induceddisaster control (Satofuka), Advanced theory of Erosion Control (Mizuyama), Advanced experiment of Erosion Control (Mizuyama, Satofuka), Seminar of Erosion Control (Mizuyama, Satofuka)

B-2. Off-campus teaching, etc.

Part-time lecturer

Mizuyama, T.: Fac. Agriculture, Kyoto Prefectural Univ. (Materials and constructive methods), Fac. Agriculture, Kobe University (Environmental Engineering), Japan International Cooperation Agency (Infrastructure)

Satofuka, Y.; Fac. Engineering, Ritsumeikan Univ. (Hydraulic experiment)

B-3. Overseas teaching

Students from abroad: 1 ( Taiwan)

Researchers from abroad: 2 (Israel, Iran)

JICA trainee: 1 (Indonesia)