ИСТИНА

IPoster is observing now on the AGU 2020 conference by the link: agu2020fallmeeting-agu.ipostersessions.com/Default.aspx?s=D5-02-B3-3F-73-33-67-08-1D-85-1E-7A-F5-56-23-D2 At the section: EP012-EP027 Earth and Planetary surface processes Short description: The sediments deposited in the catchment area or in the bedforms can be eroded again by snowmelt and rainfall erosion in the catchment area or directly due to the erosion of the banks. The products of erosion gradually move to the end of the river, with the exception of the part of sediment trapped by reservoirs. For instance, for the Ob', it is only 10% of the watershed erosion, and for the Yenisei, it is 17% of eroded soil on the catchment. According to the calculations, bank erosion for both downstream is less than the watershed component of sediment runoff. The fact that these components are comparable and it gives some progress in solving the still unexplored question of the role of the bank and watershed components in the origin of sediment runoff of large rivers.