THE UPGRADING OF THE QUANTITATIVE ASSESSMENT METHODS OF WIND EROSION INTENSITY

Abstract

Necessity of maximum simplification of wind erosion process mathematical formulation on account of principled difficulties in practical use for conditions of Belarus of latest soil wind erosion empirical model, developed by V.M. Gendugov and G.P. Glazunov, is substantiate. Supposition, that blowing intensity relate to air stream velocity not by exponential, but by power dependence, is put forward. “Power” wind erosion model encompassing the whole area of possible wind velocities, in which empirical coefficients are absent, is developed on this basis. Derived model verification using experimental data of V.M. Gendugov and G.P. Glazunov is fulfilled. Is defined, that the most intimate relation with experimental points is observed near the wind velocity 14 m/c and exponent equal 2, i.e. when the function shapes parabola. The parameter - “initial quadratic” air stream velocity, starting with which wind erosion develops according to parabolic law, thus for the first time is determined.