日野川流域における土砂動態の再現

抄録

The purpose of this study is to formulate a sediment routing model in a whole river basin in order to evaluate sediment transport, and to verify the applicability and the usefulness of the model. The sediment routing model, which can evaluate sediment transport of bed-load, suspended-load and wash-load, is applied to the Hino River basin and the sediment movement in recent 18 years is calculated using this model. Through the model application, the sediment discharge on a flood, the sedimentation in reservoirs and bed variation are discussed. Through the comparison between the calculated results and the monitoring data such as the sediment discharge and the bed deformation, it is found that the sediment routing model is applicable and useful for the evaluation of sediment transport.