The aim of the research is to study the consequences of dynamic impact of the drops of artificial rain on soil. The results of experimental research of total soil splash weight and the maximum splash distance are given. The fraction < 0.25 mm is the most erodibility. It is equally for the total soil splash weight and the maximum splash distance. The weight of soil detached were measured for 1.73 and 2.73-mm diameter drops falling from the height of 1.0-2.5 m. Soil splash weight is 0.056±0.004 g for 2.73-mm diameter drop. But even a small drop of 1.73-mm diameter has an impact on erosion process: total soil splash weight was 0.043±0.003 g for fraction < 0.25 mm and 0.016±0.004 g for a control soil sample when drops were falling from the height of 2.5 m. The soil samples of irrigated lands of the Kolomna municipal district in the Moscow region and experimental plot of the Shatsk municipal district of the Ryazan region were studied too. It is established that more sustainable to erosion were soil samples from farms and experimental plots. It can be explained by the impact of their organic and mineral composition on the process of raindrop erosion. The obtained relation of the soil splash weight and splash distance can be used for study and calculation of raindrop erosion. The research results can be used by farms for design of erosion-preventive measures, as well.
Keywords: soil degradation, raindrop erosion, soil, drop, raindrop impact, weight, splash distance, soil particles.
