SEDIMENT TRANSPORT OF KUROBE SEDIMENT FLOW SYSYTEM AND ISSUES IN SEDIMENT MANAGEMENT

Abstract

The Kurobe river has large amount of sediment transport, and the river channel on the Kurobe river alluvial fan and the Shimoniikawa coast that ranges to the river mouth have been formed by these sediment transport. In such the river and the coast, if the sediment transport decrease or it is interrupted by structures, excessive erosion and excessive sedimentation occur. Then problems on the management of the river and the coast are caused. In this study, the sediment transport in the Kurobe sediment flow system, composed of the Kurobe river and the Shimoniikawa coast, were understood, and issues of the sediment management were confirmed.