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When rills evolve into larger channels or gullies that are too big to be removed by normal tillage, this is termed gully erosion. It carves out large, unrepairable ditches and can lead to a significant loss of agricultural land.

Tillage erosion occurs due to the farming practice of tillage. It can move soil from higher to lower positions on the field, resulting in nutrient depletion, uneven soil depths, and disrupted growth patterns for crops.

Rill erosion involves the removal of soil by concentrated water running through little streamlets, or rills. It can drastically reduce arable land if not corrected, making the land unsuitable for agriculture.

This type of soil erosion occurs when a thin layer of topsoil is removed over a large area by surface water runoff. It leads to the reduction of soil fertility, impacting crop yields.