実験地形学の最近の動向と災害科学との関連性

Abstract

The need of experimental study in Geomorphology was asserted to promote the advance of Geomor-phology as a branch of Earth Science and the international activities of I. G. U. Commission on "FieldExperiments in Geomorphology" were introduced showing the purpose of the Commission and somestatistical results on the type and scale of the experimental studies. The quantitative prediction of topo-graphic change using experimental method is very useful for the Disaster Prevention Science, especiallyfor the study on slope failures, landslides and debris flows which have a deep connection with rapid masswasting. Our study on the motion of debris flows and its effect on topographic change in fan was de-scribed as an example for a field experiment in our country, the result of which is applied to predictionof a dangerous region of debris flows.