Congo River Basin Cuvette Centrale Environmental science, engineering & technology SWAT Technology: general issues aquatic life bank erosion bed shear climate change adaptation cohesive sediment cohesive sediment transport critical shear stress dam area of reservoirs deposition entrapment erosion fine-grained sediment flocculation fluid mud gravel bed river gravity-driven flow ice jam ingress landscape disturbance modelling reservoir sedimentation river systems sediment balance sediment pulse sediment transport