Which outcome will occur when a river's discharge decreases significantly across an active alluvial fan?

💡 Explanation

When discharge decreases across an alluvial fan, sediment transport capacity reduces because flow energy diminishes, leading to increased deposition and steeper slopes promoting instabilities. Therefore, sediment deposition accelerates, rather than decreased avulsion frequency, uniform incision, or uniform vegetation, each requiring different hydro-geomorphic adjustments.

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