"Head Water Area" is understood as both supplying a source of clean water and assisting in the prevention of flood/sediment disasters for living people downstream. Over-cutting of trees or industrial pollution sometimes damages to the surrounding environment of "Head Water". Japan has experiences such failures 100 years ago. In this training course, We would like to focus on hydrological impacts of non-vegetation, and on the effects of both reforestation in steep slope and erosion control works in river-bed. The watersheds, we focus on, are damaged in the past with sulphurous acid gas caused by the refining factory of copper. Lectures are provided at the Faculty of Technology, Gunma University, Kiryu-city, Gunma Prefecture, and field training is to be done in the basin of the Watarase River, a tributary of the Tone River which is very important for Tokyo Metropolitan.
Why we should pay attention to the circumstance of "Head Water Area" is lectured theoretically and empirically through hydrological analysis. It usually takes long years to recover devastated mountain. It just means that practical field works have to be evaluated scientifically and technologically by long-term survey and observation. Knowledge and wisdom obtained have to be expanded to countries with similar climate and topological condition. Participants can learn significance of head water conservation through lectures, practices and field tours.
(convenor: Y. Fukushima)
T. Ohta (Graduate School of life and Agriculture, University
S. Kobatake (Faculty of Technology, Gunma University)
Y. Fukushima (Institute for Hydrospheric-Atmospheric Sciences, Nagoya University)
Y. Kawano (Forestry Agency, Ministry of Agriculture)
Y. Nakamura (Nikko Branch Office, Ministry of Construction)
K. Honda (Asian Institute of Technology, Thailand)
T. Tsujimoto (Graduate School of Engineering, Nagoya University)
H. Tanji (Institute for Agricultural Engineering, Ministry of Agriculture)
H. Kawashima (Graduate school of life and Agriculture, University of Tokyo)
G. Takahashi (Toyama Prefectural University of Agriculture)
L 1-1. Typology of erosion processes and watershed management
L 1-2. Effect of human activities on head water
L 1-3. Histry of mountain devastation in the Watarase River
L 2. Hydrological processes in headwater
L 3-1. Forest conservation project in headwater areas
L 3-2. Sediment disaster preventive works in Japan
L 3-3. Evaluation of Erosion Control Work using Remote Sensing and GIS
L & P 4. Runoff analysis of head water
L & P 5. Sediment Transport and River Management
L 6-1. Irrigation system and watershed management
L 6-2. River basin management and water quality
L 6-3. Watershed management and conservation of ecosystem
The trainees will visit Ashio basin and Nantai
volcanic mountain that are well known devastated regions in Japan. Erosion
control works have been carried out in the regions to prevent soil-related
disasters. The technical tours also include the Watarase Retarding Basin,
Tone-Oozeki Barrage and the integrated Dam Control Office to maximize the
efficient utilization of the dams.
Schedule (July 24 - August 8, 2000)
|Arrival at Narita Airport and move to Kiryu-city by limousine||Stay at Kiryu-city|
|25 (Tuesday)||Guidance, Lectures 1 at the campus of Gunma University||Stay at Kiryu-city|
|26 (Wednesday)||Lecture 2||Stay at Kiryu-city|
|27 (Thursday)||Lecture 3||Stay at Kiryu-city|
|28 (Friday)||Technical tours to Ashio||Stay at Lake Chuuzenji|
|29 (Saturday)||Technical tours to Mt. Nantai||Stay at Lake Chuuzenji|
|30 (Sunday)||Inspect sights of Nikko||Stay at Kiryu-city|
|31 (Monday)||Lecture and Practice 4||Stay at Kiryu-city|
|August1 (Tuesday)||Lecture and Practice 5||Stay at Kiryu-city|
|2 (Wednesday)||Technical tour to the integrated Dam Control Office||Stay at Kiryu-city|
|3 (Thursday)||Lectures 6||Stay at Kiryu-city|
|4 (Friday)||Technical tour to the Watarase Retarding Basin and Tone-Oozeki Barrage||Stay at Kiryu-city|
|5 (Saturday)||Move to Tokyo||Stay at Tokyo|
|6 (Sunday)||Departure from Narita|
Figure 1 Location Map of Kanto Region (This Training Course), Japan
The average air temperature is +25 to +35 degrees and total precipitation is about 170 mm a month in Kiryu-city. In Lake Chuuzenji with 1,270 m a.s.l., you may feel cool in the night time.
The trainees from the Asia-pacific region are selected and recommended by the Regional Office for Science and Technology, United Nations Educational, scientific and Cultural Organization (UNESCO). The UNESCO Jakarta Office would be in charge for the selection and the recommendation of the participants. Successful candidates would be supported financially by UNESCO for his/her travel as well as per diem in Japan. Those who wish to participate, are requested to contact the UNESCO Jakarta Office at the following address.
Postgraduate students enrolled in the special course in the graduate School of Nagoya University, and who are at the institute for Hydrospheric-Atmospheric sciences, Nagoya University, under the auspices of the Special Program for Sciences of the Atmosphere and Hydrosphere are eligible to participate.
Programme Specialist for Hydrology, UNESCO
Regional Office for Science and Technology,
UNESCO Jakarta Office, JI. M.H. Thamlin 14,
Tromolpos 1273/JKT Jakarta 10002 Indonesia
Forthcoming IHP Training Course
2001 Course on Hydrogen and Oxygen Isotopes
in Hydrology (to be abbreviated as H & O Isotopes in Hydrology)
(to be conducted in summer or early fall, 2001)
Stable isotopes in hydrogen and oxygen have
been commonly used tracers in the field of hydrology. Tritium, a radioisotope
of hydrogen, has a life time of the order of 10 years and acts as a age
indicator of water masses from several to several hundreds of years. The
course focuses on how to answer hydrological questions by analyzing isotopic
abundance of water on the basis of global distributions, characterization
of waters, fractionation mechanisms, mixing of water masses, isotopic exchange
with lithosphere. Lectures are to be given at Institute of Hydrospheric-Atmospheric
Sciences, Nagoya Univ. Aichi Pref. and Department of Environmental Science
and Technology, Tokyo. Institute of Technology, Yokohama, Kanagawa Pref.
Water samples are to be collected from volcanic gas, caldera lake, rivers, springs related to Mr. Kusatsu Shirane volcanic activities close to the Observatory of Tokyo. Institute of Technology, Gunma Pref. Various water samples are also to be collected at Chiba Experimental Forest of Univ. of Tokyo, Chiba Pref. Stable isotope ratios in the water samples are determined in the laboratory of Tokyo Institute of Technology. Measured data are to be analyzed including Rayleigh distillation simulation experiments.
The IHP Training Course is financially supported by a Trust Fund for UNESCO from the Ministry of Education, Science, Sports and Culture, Japanese Government.