Distribution of silty fraction and slurry by profile of arable soils of the central forest-steppe

The work is devoted to the study of granulometric composition soils 120-year and 240-year agricultural development meadow-steppe landscape on example Belgorod region. In lateral distribution silt fraction contained in arable horizon, a significant increase its proportion lower parts soil catenas arable, for variations are less noticeable. averaged values content over slope profiles land showed local maximum confined subsoil horizon. An inverse relationship was found slopes 120-year-old land, namely fact that percentage increases at depth does not lead an same layer. Numerous blindfolds were sections studied by caten, especially many them detected up one meter. Average area occupied mole crusts walls transects 80-90% 70-80% arable. On background catenas, 30-40% mole-rats. Blistergrasses more often catens northern exposition - both land.