Estimation of Rainfall Erosion Index

The rainfall erosion index in the Universal Soil-Loss Equation has been intensively studied using an analytic approach. Simplified procedures for its computation have been developed and presented. The methodology ties together the eastern and western portions of the United States and is based primarily upon the rainfall distribution curves as published by the Soil Conservation Service and secondarily upon the kinetic energy and rainfall intensity relationship. With this improvement it is hoped that the Soil-Loss Equation will become truly universal.