Behavior patterns of radionuclides in floodplain landscapes of the Techa River in the Urals

The authors studied peculiarities of the behavior of long-lived radionuclides in floodplain landscapes of the Techa River. The effect of floodplain soil formation and hydrological conditions on the radionuclides' migration in the soil and plant cover was noted. The question of the role of floodplain landscapes as geochemical barriers and sources of secondary contamination of the Ob river system is discussed