河川の樹林化課題に対する研究の現状と将来展望

抄録

This paper reviews current status and discusses future prospects for the research on vegetation overgrowth phenomena and riverine forest management within river channels in Japan. The review is based on the research workshop, which was held on November 22^nd, 2012 at Kobe for discussing the riverine forest issues. The workshop summarized the research history from 1970’s and presented 6 lectures on the state-of-the-art research topics with respect to the channel design and river basin management. The discussion revealed that current researches have much variety on their perspectives, e.g., river engineering, fluvial geomorphology, plant ecology, biogeophysics and so forth. The diversity of the perspectives makes us difficult to understand the key mechanisms governing the plant dynamics in river channels. The review and discussion strongly suggest a future research direction that datasets of plant status with hydrological and geomorphological settings in many rivers in Japan and around the world should be necessary to analyze and classify the key mechanisms of plant dynamics in river channels.