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A Simulation Model of Daily Wind Erosion Soil Loss

1983; Volume: 26; Issue: 6 Linguagem: Inglês

10.13031/2013.33839

2151-0059

George W. Cole, Leon Lyles, L. J. Hagen,

Coastal and Marine Dynamics

ABSTRACT EPIC's (Erosion Productivity Impact Calculator) wind erosion submodel is described in terms of the equations and concepts needed for interfacing the wind erosion equation with EPIC. The required equations are presented following an analysis of the wind erosion equation literature which shows how the wind erosion equation was developed from short-term data. This analysis is based on viewing the soil loss as a time and space integration of a surface soil flux. The wind erosion equation is then partitioned into those parts that represent the short-term effects and the integration process. From this it is seen how one might ideally modify the wind erosion equation. The analyses point the way for future improvements in soil loss prediction equations. The results of the five 50-yr simulations are also presented.