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One goal of this study was to assess the suitability of a novel field hybrid rainfall simulator (FH simulator) that combines characteristics of a spray nozzle and a drop former rain simulator (DF) for erosion research. Two soils with different
of both rain simulators were comparable, but kinetic energy and drop size differed for both simulators from natural rain. The results demonstrate that vegetation cover plays a crucial role in alpine soils for soil structure stability and erosion.

in the field. Test results of the PWRS are very satisfactory. The analysis presented in this study suggests in particular very good reproducibility of wind and rain conditions. The PWRS should therefore be a useful device for comparative in situ soil erosion

of cumulative rainfall erosivity value (R), starting with a tilled soil, and letting it evolve with natural rain events. The AA. finally parametrized surface detention by an effective friction factor, using a classical equation for an equivalent laminar sheet

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