Programme OS1d Tropical zones
THE REVERSE SIDE ON THE RIVER MANAGEMENT
THESE 60 YEARS IN JAPAN
～AS THE EXAMPLES OF THE CONFLICT BETWEEN
UPPER AND DOWNSTREAM PEOPLE ～
Author(s): Yutaka Takahasi, Yoshiko Monma
Japanese National Water Problems Association
4-11-2-304 Arakawa, Arakawa-
ku, Tokyo 116-2, Japan
Session: OS1d Tropical zones
During the over half Century after the Second World War, Japan has
experienced drastic transition on the river management with the surprising economical growth and the severe
urbanization. Under these condition , the conflict of people between upstream and downstream regions has been
arisen in several river basins where dam projects have planned. Over forty years, the
Circumstances of the
conflict from the upstream people’s side. Based on our research, results on the conflict, we introduce three different
examples as follows;
First case is Kaneyama Town on the Tadami River Basin located in Tohoku District
(Northern Japan). The town has a serious history since 1960’s, hydro-electric dam boom on the Tadami River,
flood damage caused probably by dam-reservoir operation, removal of the part of hydro-electriceqipment, the
environmental destruction with the lapse of the changeable socio-economical condition with the population
Second case is Horai Town on the Toyo River Basin located in the Central Japan near Nagoya. As
the town has suffered from the continuous dama projects nearly the half Century, the people were always worrying
about their life establishment.
Third case is Kitagawa Town on the Gokase River Basin located in Kyushu
(Southern Japan). The town has been suffered from inundation throughout the history. It is very difficult to establish
the flood control project in the flood-prone district.
The population of above-mentioned towns are decreasing
and always sacrificing against the neighboring towns.
Three cases are the reverse side story with the
economical growth in the urban regions in Japan.