AQA GCSE Geography · 8035
Specification 3.1.3.3 · Paper 1
The wearing away and removal of a river’s bed and banks. Hydraulic action is erosion by the force of water; abrasion is erosion by sediment scraping against the bed and banks.
Revise: River Landforms in the UKTogether, downward river erosion and the breakdown of the valley sides produce a steep-sided, V-shaped valley with interlocking spurs. These bends around hillsides are different from the large meanders that migrate across broad flood plains downstream.