Abstract
In studying the mechanism of water erosion of land-surfaces by rain water flow, it is necessary to evaluate experimentally the relations between the factors related to the phenomena of soil detachment from land-surfaces and transportation of detached soil. In this paper, erosion of land-surfaces consisting of sand or sandy soil by stream flow is treated. For this approach, hourly variations of the rate of detachment of soil, the discharge of surface flow and grain diameters of transported soil, and rates of sediment transportation by rain water flow are measured. The experimental results are discussed comparing with those obtained by some authorities. Moreover, a dimensionless expression on the rates of detachment of soil is proposed.
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