河川環境の劣化防止・保全・修復・再生に係わる河川技術の課題と展望

抄録

Recently, most substantial attention is paid to river environment and many measures and researches are treated year by year. In 2002, river restoration works were started in Japan, however, many themes are remained yet. In this report, we reviewed references pointed out the problems of ever nature-oriented river works in Japan, and introduced some examples of restoration project in the world. Then we considered subject and view of river engineering concerning prevention of degradation,conservation, rihabilitation and restoration on river environment.