The influence of climate change on erosion processes in slope agricultural landscapes is determined. Long-term data (1971–2017) on the study of soil protection methods of the main tillage and their impact on water reserves in snow, melt water runoff, soil washout in the changing climate are presented. It was found that the increase of air temperature, the decrease in the depth of soil freezing led to a reduction in the loss of melt water to runoff and a reduction of erosion.