Comparison and Applicability of Selected Soil Erosion Estimation Models

Soil erosion is a globally challenging issue that hinders agricultural productivity by enhancing land degradation and loss to the top fertile soil. Although it global issue, its effect adverse on farmers dwell in developing countries. Hence, providing information soil crucial plan implement appropriate water conservation measures. Accordingly, estimation models were developed grouped as empirical, conceptual, physical-based broad umbrella. This review paper primarily intended compare opportunities limitations of widely implemented their applicability selecting used such as: USLE, RUSLE, SLEMSA, WEPP. The result this revealed so reviewed have been designed predict from sheet rill erosion. Evidence studies indicated R/USLE can be universally calibrating local environmental conditions. They are simple, requires less data computational time, however; they not event responsive measure gully stream-bank But, RUSLE model has different parameter calculation procedure than USLE. study also depicts SLEMSA treats factors separate entities highly influenced LS factors. WEPP capability estimate short time scale out-of-place rates, but; only works for individual hillslope. Thus, based following recommendations forwarded further fill gaps; upgrading parameters, modification topographic sub-model revision essential parameters large catchments.