aggradation

Aggradation in geology is the accumulation of sediment in rivers and nearby landforms. Aggradation occurs when sediment supply exceeds the ability of a river to transport the sediment. As an example, the quantity of sediment entering a river channel may increase when climate becomes drier. The increase in sediment is caused by a decrease in soil binding that results from plant growth being suppressed. The drier conditions cause river flow to decrease at the same time as sediment is being supplied in greater quantities. Hence, the river becomes choked with sediment.
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The process by which a stream's gradient steepens due to increased deposition of sediment.

ALLUVIONAMENTO. SOVRALLUVIONAMENTO

B: (Biologi) agradasi
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Eng: aggradation
Urdu: طَبَق بَندی ۔