Surface flow of melted snow water on the central Russian upland

Abstract In areas with a pronounced relief, water erosion causes great harm to agriculture and other sectors of the national economy. It leads destruction soil cover, reduction in area arable land, decrease fertility, removal products into floodplains, siltation ponds rivers road network. The scientific goal was identify influence main natural factors (snow reserves, freezing moisture) on formation spring melt runoff plow. To study questions raised, water-balance method used use sites. Observations showed that depended depth freezing. With shallow up 50 cm, there no runoff. All absorbed by soil. As result 30 years research (1991-2020), it found average annual plow very weak - 3.8 mm scale Surmach, coefficient is 0.05, 19-28 duration snow melting 16 days.