Which consequence results when incision decreases in an alluvial river?

💡 Explanation

Decreased river incision reduces the river's capacity to transport sediment; alluvial deposition occurs because aggradation, not erosion, becomes dominant within the fluvial system. Therefore, floodplains receive more sediments rather than experiencing bedrock erosion.

• Which outcome occurs when tropical weathering decreases bioturbation?
• Which landscape change accelerates when permafrost thaw increases earthworm bioturbation?
• Which mechanism causes a graben valley to form within a continental rift zone involving normal faults?
• Which topographical outcome consistently follows alluvial sediment deposition?
• Which outcome occurs when a river's sediment load dramatically increases entering a floodplain lake?
• Which outcome occurs when rapid snowmelt saturates volcanic ash deposits?