Soil erosion by water is one of the most important morphogenetic processes taking place within the lowland geoecosystems in Poland. Therefore, it is relevant to recognise its nature, course, conditions and dynamics. This article presents some lithological conditions of water soil erosion on a testing plot within the Chwalimski Potok catchment in the Drawskie Lakeland. The conducted measurements of soil particle size distribution, soil moisture and compaction, shear strength and degree, as well as infiltration rate constitute the basis of the analysis and all relevant calculations. It was shown that topsoil (slightly loamy sands) with increased humidity at the surface is most susceptible to the process of soil erosion by water. Some methods to prevent adverse degradation processes were suggested in the article.
