Which mechanism explains stream meandering increases due to reduced sediment load below dams?

💡 Explanation

When sediment load decreases below dams, reduced deposition results in lower bank strength and higher erosion rates because saturated sediment gives cohesion, increasing its resistance when vegetation is absent. Therefore, decreased bank erosion resistance results, rather than increased flow, reduced deposition which also lowers erosion, or enhanced stabilization, these require conditions of sediment load.

• Which risk increases when a megathrust earthquake deforms the seafloor during seafloor displacement?
• Which outcome occurs when continuous alluvial deposition exceeds the subsidence rate?
• Which mechanism causes periodic bursts of sediment flow across alluvial fans during flash floods?
• Which outcome inhibits phytoplankton blooms when increased stratification disrupts a gyre?
• Which topographical outcome occurs when seasonal flooding deposits sediment atop an alluvial fan?
• Which resulting phenomenon occurs when highly viscous lava cools rapidly?