R-Factors for Soil Loss Impact Prediction

by Robert E. Riggins, (M.ASCE), Principal Investigator; Army Construction Engrg. Research Lab., P.O. Box 4005, Champaign, Ill. 61820,
John T. Bandy, Principal Investigator; Army Construction Engrg. Research Lab., P.O. Box 4005, Champaign, Ill. 61820,


Serial Information: Journal of the Environmental Engineering Division, 1981, Vol. 107, Issue 4, Pg. 851-857


Document Type: Journal Paper

Abstract: A procedure has been developed to determine design R-values for use with the Universal Soil Loss Equation in soil-loss prediction during environmental impact analysis. The procedure brings together a new method of computing R-values, the concept of simple risk and the use of readily available precipitation data. A test of the procedure using precipitation data from Texas and Georgia showed that R-values calculated with the new method follow a log-normal probability distribution. A relationship was found between R-values computed using the new method and R-values published in Agriculture Handbook N0. 537.

Subject Headings: Soil loss | Soil analysis | Probability distribution | Precipitation | Sustainable development | Risk management | Field tests | North America | United States | Georgia | Texas

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