River Erosion is the removal by river water of materials from the sides and bed of the river channel. Some of the factors influencing River Erosion includes;-
1. River volume: A river with a large volume has a greater kinetic energy to erode than one with a small volume.
2. Slope of land: A river flowing on a steep channel has greater velocity and therefore more energy to erode its channel than one flowing over gentle or flat land.
3. Rivers load: A river with large, rough and heavy load e.g. tree trunks and boulders erodes more than one with light, fine and smooth materials e.g. sand. A river carrying more load erodes more than one with less load as it has more abrasive tools.
4. Nature of bed rock; Erosion is faster where a river flows over soft bed rock and less where it flows over hard rock.