USLE/RUSLE K-factors allocated through a linear mixed model for Uruguayan soils

Soil erosion byrainfall is a process that demands management, both for the prevention of excessive soil erosionand for the protection of the quality of freshwater bodies. Erosion coefficients (K-factors) of theuniversal soil loss equation (USLE)/revised USLE (RUSLE) model were assigned to 99 mappedUruguayan soil types at 1:1,000,000 scale. This work developed a linear mixed model (LMM)with 79 soils with assigned K-factors, in which the following variables were considered: soiltaxonomy, chemical composition, and parent material. The developed LMM had an R 2 =0.86,in which the soil taxonomy (p