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Although rills are small, they transport significant amounts of soil each year. Some estimates claim rill flow has a carrying capacity of nearly ten times that of non-rill, or interrill, areas. In a moderate rainfall, rill flow can carry rock fragments up to 9 cm in diameter downslope. In 1987, scientist J. Poesen conducted an experiment on the Huldenberg field in Belgium which revealed that during a moderate rainfall, rill erosion removed as much as 200 kg (in submerged weight) of rock.<ref name=autogenerated1>Poesen, J. 1987. Transport of Rock Fragments by Rill Flow—A Field Study. Catena Supplement 8. W. Germany:Catena Verlag. 35-54.</ref> |
Although rills are small, they transport significant amounts of soil each year. Some estimates claim rill flow has a carrying capacity of nearly ten times that of non-rill, or interrill, areas. In a moderate rainfall, rill flow can carry rock fragments up to 9 cm in diameter downslope. In 1987, scientist J. Poesen conducted an experiment on the Huldenberg field in Belgium which revealed that during a moderate rainfall, rill erosion removed as much as 200 kg (in submerged weight) of rock.<ref name=autogenerated1>Poesen, J. 1987. Transport of Rock Fragments by Rill Flow—A Field Study. Catena Supplement 8. W. Germany:Catena Verlag. 35-54.</ref> |
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Unfortunately, the considerable effect rills have on landscapes often negatively |
Unfortunately, the considerable effect rills have on landscapes often negatively impact human activity. Rills have been observed washing away archaeological sites.<ref name=autogenerated1 /> They are also very common in agricultural areas because sustained agriculture depletes the soil of much of its organic content, increasing the erodibility of the soil. Agricultural machines, such as tractors, compact the soil to the point where water flows over the surface rather than seeping into the soil. Tractor wheel impressions often channel water, providing a perfect environment for the generation of rills. If left alone, these rills may erode considerable amounts of arable soil.<ref>Fullen, M.A. & A.H. Reed. 1987. Rill Erosion of Arable Loamy Sands in the West Midlands of England. Catena Supplement 8. W. Germany:Catena Verlag. 85-96.</ref> |
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Under proper field management rills are small and are easily repaired by contour tilling the soil. This will prevent, for a time at least, the rills from growing and eroding the landscape more rapidly with time.<ref>{{cite web |url=http://dhn.iihr.uiowa.edu/runoff/erosion.htm |title=The Erosion Process |access-date=2010-10-07 |url-status=dead |archive-url=https://web.archive.org/web/20100628182919/http://dhn.iihr.uiowa.edu/runoff/erosion.htm |archive-date=2010-06-28 }}</ref> |
Under proper field management rills are small and are easily repaired by contour tilling the soil. This will prevent, for a time at least, the rills from growing and eroding the landscape more rapidly with time.<ref>{{cite web |url=http://dhn.iihr.uiowa.edu/runoff/erosion.htm |title=The Erosion Process |access-date=2010-10-07 |url-status=dead |archive-url=https://web.archive.org/web/20100628182919/http://dhn.iihr.uiowa.edu/runoff/erosion.htm |archive-date=2010-06-28 }}</ref> |
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