This report describes suggestions of future direction on flood control works which take into account environmental conservation and international co-operation in this field. At first, the present conditions of flood control works and environmental conservation in developing countries of South-east Asia are introduced. Secondly, problems of the works and environmental conservation are clarified.
Debris flows, landslides, and landslips have, in recent years, accounted for an increasing share (in terms of deaths and injuries) of natural disasters. One method of protecting life and property from disasters of this kind which has been considered involves using radar rain gauges to track the movement of rainfall areas and the development of rain clouds and forecast rainfall to increase the accuracy of landslide warnings and evacuation measures. Up till now, however, few studies of sediment-related disasters have been carried out. This study examines the application of a sediment-related disaster advance warning system using radar rainfall gauges.
The subject of this study is to experimentally determine to what extent one can walk against the resistance on a slope. Through experiments using flumes, the walking conditions were obtained in terms of the gradient of the slope, and the depth and velocity of the running water. Slope is a dominant factor when the gradient is steeper by degrees. Although the series of experiments were conducted for adults, the results of the experiments were applied with aid of a study regarding the relationship between physical growth and the physical motor function, to infer the walking conditions for children.