The soil erodibility factor K used in the Revised Universal Soil Loss Equation can be calculated by two general applicable models. Data on the various soils covering northern Belgium are processed to evaluate the use of these models. Erodibility
factors are calculated for the top layer of soils where rill and interrill erosion occur. The K-values generated by each model are then compared throughout the range of soil types varying erodibility. For both models average K-values per unit area
The effect of slope angle on splash detachment has been a matter of discussion for long because it has not always been clearly observed in experiments. In this paper a model, based on the physics of the drop impact, is developed.