Fig. 7: Sediment transport processes in the study area.

Sediment flow, and erosion and deposition in the Sanmenxia (Sanmenxia R.) and Xiaolangdi (Xiaolangdi R.) reservoirs and downstream reaches of the Yellow River in (A) the period 1999-2018 and (B) 2019. Blue, erosion; brown, deposition; positive value, gain of sediment flow; negative value, loss of sediment flow; distance in parentheses = length of river reach.