Comparative assessment of the structural and aggregate composition of dark gray forest soils of the forest-steppe zone of the Trans-Urals

The involvement of soils in agricultural turnover leads to a significant change in the natural soil formation process. The reason for this is a change in the nature of the receipt of plant residues in the soil, high aeration, mineral fertilizers and mechanical effects of agricultural tools. In the result, the soil begins to acquire the characteristics peculiar to agroseme. The article presents data on the study of the structural state of arable dark gray forest soils of the forest-steppe zone of the TRANS-Urals. The research was carried out at the hospital of the agrochemical station "Tyumenskaya", located near the village of Uspenka, Tyumen region. As a reference for comparison, a plot of virgin dark gray forest soil, located 200 meters from the arable land, was chosen. The aim of the research was to study the influence of anthropogenic factors on the structure formation of dark gray forest soils. The aggregate composition was studied by dry and wet dispersion of soil samples in a sieve column...