耳川水系ダム通砂に向けた河川環境調査結果に 基づくモニタリング計画の概要

抄録

“Mimikawa River Basin Integrated Sediment Flow Management Plan” was compiled in 2011 by the Miyazaki Prefecture, as triggered by the huge sediment disaster due to the Typhoon Nabi, in 2005. Kyushu Electric Power Company, which is responsible for dam installations, is as part of the Management Plan aiming to restore the original sediment flow, which has been intercepted by dams up until now, and has drawn up a plan for sediment sluicing, incorporating Yamasubaru Dam, Saigou Dam, and Oouchibaru Dam. It is assumed that in response to the change in the amount of flow of sediment due to sediment sluicing at dams, there will be changes in the river environment. This paper reports overview of river environmental research-based monitoring plan for sediment sluicing at dams in Mimikawa River Basin.