Question

what is gully erosion and sheet erosion?

Answer 1

gully erosion is the process by which gullies are formed. Hillsides are more prone to gullying when they are cleared of vegetation, through deforestation, over-grazing or other means. The eroded soil is easily carried by the flowing water after being dislodged from the ground, normally when rainfall falls during short, intense storms such as during thunderstorms.


* Sheet erosion: Sheet erosion involves the removal of a uniform thin layer of soil by raindrop splash or water run-off

Answer 2

Gully erosion: whereby on steep slopes, in absence of any vegetation the flow of storm water flows with force downhill developing into channel flow, cutting steep sided valley as it runs off.

Sheet erosion: whereby due to heavy rains, a surface film of water carries away the even surface layer of the topsoil as it moves.