TheUniversalSoilLossEquation(USLE)computestheaveragesoillossperunitarea.ManysourcesintheliteraturewesurveyedgiveWischmeier,et.al.(1965)thecreditforthedevelopmentoftheUSLE.However,Wischmeier’spapermentionstheNationalRunoffandSoilLossDataCenterandPurdueUniversityfordevelopingitin1954.AlaterrevisioncalledtheRUSLEwaspromptedbylimitationsintheolderUSLE.
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