ABSTRACT:
Rainfall erosivities as defined by the R factor from the universal soil loss equation were determined for all events during a two-year period at the station La Cuenca in western Amazonia. Three methods based on a power relationship between rainfall amount and erosivity were then applied to estimate event and daily rainfall erosivities from the respective rainfall amounts. A test of the resulting regression equations against an independent data set proved all three methods equally adequate in predicting rainfall erosivity from daily rainfall amount. We recommend the Richardson model for testing in the Amazon Basin, and its use with the coefficient from La Cuenca in western Amazonia.
Footnotes
H. Elsenbeer is a research scientist and W. Tinner is graduate research assistant with the Institute of Geography, Section Soil Science, 3012 Bern, Switzerland; D.K. Cassel is a professor in the Department of Soil Science, North Carolina State University, Raleigh 27695–7619.
- Copyright 1993 by the Soil and Water Conservation Society
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