Types of erosion
Rill erosion– occurs on gentle slopes of exposed
soil. Water creates small channels a few inches
deep. It may turn into gully erosion on steeper
slopes.
Gully erosion – Occurs on steep slopes. Fast
moving water cuts deep ditches into the soil that
can change the landscape.
Sheet erosion – gradual removal of topsoil by
wind or water. Occurs in thin layers on very
gentle to non-sloping exposed soils. It can be
seen by blowing dust and muddy water.
Mass erosion (slumping)– Large movements of
soil due to gravity (landslide in California)