天竜川流砂系総合土砂管理計画第一版策定に向けて－大規模な土砂管理対策実施による平均河床高等の指標値の変化とその管理・評価手法の検討－

抄録

Large-scale sediment control measures are being planned in Sakuma Dam of the middle reaches of Tenryu River in Japan. It is clear that the measures should have a great effect on the environment in the lower reaches from the dam to seashore. Therefore, it is necessary to predict, control, monitor and evaluate the variation of the index values such as height of the river bed. Also, it is equally important to reflect the result of the monitoring and the evaluation to the plan of the measures accordingly. In the shortage of knowledge about sediment control, this kind of adaptive management is very important to realize properly sediment control. In this report, we introduce series of method for drawing up the first edition of the comprehensive sediment management plan of the Tenryu River Basin.