Question

define three types of soil erosion

Answer 1

hii there!!

The three types of soil erosion are Sheet, Rill and Gully.

Sheet erosion is the removal of soil particles by water drops and surface flow. Sheet erosion can be hard to detect but can be extremely damaging. Uncovered soil with little to no vegetation is the most susceptible. Sheet erosion can be reduced by increasing vegetation to slow water flow and help increase infiltration.

Rill erosion is the next step in the progression it consists of channels smaller than 30cm deep. Once again it can be combated with methods that reduce the amount and speed of water flow and increase inflitration such as cultivating grasses or adding contoured drains.

Gully erosion consists of channels greater than 30cm. Conservation practices outlined above can become very difficult to implement because of the upslope cutting of rills and more pronounced slopes can make it much harder to establish vegetative cover. A headcut might be an option to help mitigate erosion damage in this stage as it helps  prevent further upstream damage. 

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