M. Sabre, M.V. López, S.C. Alfaro, J.L. Rajot, and L. Gomes
Abstract
In order to assess the production of fine particles by wind erosion, two different
field surfaces free from vegetation, respectively cultivated and uncultivated, were
tested. The efficiency of the production of dust was characterized by the ratio of the
vertical to the horizontal fluxes of particles. The vertical flux (F) was
determined from a theoretical equation based on parameters easily measured in-situ. The
horizontal flux (G) was computed from a model developed for an erodible soil
surface. The ratio of the vertical to the horizontal flux (a)
was found to be a decreasing or an increasing function of the wind friction velocity
depending upon particles characteristics at the soil surface.
