Which process amplifies stream downcutting when tectonic uplift increases erosion rate?

💡 Explanation

When tectonic uplift increases erosion, knickpoints (abrupt changes in riverbed elevation) form and migrate upstream, creating a positive feedback loop of erosion accelerating downcutting. Therefore, increased knickpoint migration feedback results, rather than rebound, sediment load changes, or vegetation stabilization which suppress erosion.

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