Differentiation of the soil cover in the lower Ob River valley

Specific features of the soil cover in the lower reaches of the Ob River are analyzed. The physicochemical properties and composition of the floodplain soils in different parts of the valley and on different floodplain elements are given. A comparative geographical analysis of the accumulation of macro-and microelements in the floodplain soils as a result of alluviation processes in the middle and lower reaches of the Ob River is suggested. The evolution of the floodplain soils and the results of the development of stratified humus horizons, changes in the hydrological regime, and cessation of floods are discussed.