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Wind Erosion Equation: Computer Solution and Application¹

ABSTRACT

A wind-erosion equation was programmed for computer solution. The relationships among variables are evaluated by the computer, and the general functional relationship between soil loss and independent variables, E = f(I', C', K', L', V), is solved stepwise to give potential average annual soil loss, E, in tons per acre per annum for specified conditions of erodibility, I'; roughness, K'; climatic factor, C'; equivalent field length, L'; and equivalent vegetative cover, V. The computer also can solve the equation to determine field conditions necessary to reduce potential erosion to a tolerable amount and can compare the effectiveness of various combinations of erosioncontrol treatments.

¹ Contribution from SWCRD, ARS, USDA, and the Kansas Agr. Exp. Sta. Dept. of Agronomy Contribution no. 1130. Presented before Div. S-6, Soil Sci. Soc. of America, Detroit, Mich., Nov. 1969.

² Soil Scientist, USDA; Assistant Professor of Statistics and Computer Science, Kansas State Univ.; and Research Investigations Leader, Soil Erosion, USDA, Manhattan, Kansas, respectively.

Received for publication May 11, 1970. Accepted for publication June 27, 1970.