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rejuvenation| In earth science, the renewal of a river's powers of downward erosion. It may be caused by a fall in sea level or a rise in land level, by climate change, by changes in vegetation cover (deforestation), or by the increase in water flow that results when one river captures another (river capture). |
| Several river features are formed by rejuvenation. For example, as a river cuts down into its channel it will leave its old flood plain perched up on the valley side to form a river terrace. Meanders (bends in the river) become deeper and their sides steeper, forming incised meanders, and waterfalls and rapids become more common. |
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