2012.4-2013.3 Yearbook of NILIM
Research Summary


River Department

Reference Number Y120301
Title Research on condition evaluation and change prediction of the physical environment supporting river ecosystem
Start-End Date 2010.4-2013.3
Division River Division
Author Head, Atsushi HATTORI
Senior Researcher, Masaki FUKUSHIMA
Researcher, Yoshinori TAKEUCHI
Summary We developed 2-dimensional river bed variation analysis model incorporating the expansion and extinction of vegetation, the deposits of fine sediment into vegetation area, and the increase of resistance against flood flow by growth of trees. And we tried to apply this model to make an assessment on habitat quality of the Kita-river, and compare some alternatives of river-channel design in term of the balance of improvement of flood flow capacity, river environment conservation, and cost of river-channel management.