Which feedback increases floodplain sediment nutrient heterogeneity due to seasonal shifts?

💡 Explanation

Increased seasonal flooding enhances *bioturbation* by mobilizing buried organic matter because aquatic organisms cycle surface and subsurface sediments following flooding, therefore resulting in nutrient variability, rather than stabilized conditions, within the floodplain.

• Which risk increases after a large inland earthquake ruptures along a transform vault zone far from coastlines?
• Which outcome is accelerated by increased saturation during subduction?
• Which consequence results when groundwater extraction increases behind a barrier island?
• Which outcome occurs when a major river's streamflow is significantly reduced by upstream diversion?
• Which outcome occurs when unidirectional winds steadily erode exposed rock surfaces in arid environments?
• Which soil development is delayed when acidic bedrock limits weathering?