Gully erosion in Australia. (Photograph by A. B. Joyce. Photo Researchers Inc. Reproduced by permission.)

Areas where all diagnostic soil horizons have been removed by flowing water, resulting in a network of V-shaped or U-shaped channels. Generally, gullies are so deep that extensive reshaping is necessary for most uses. They cannot be crossed with normal farm machinery. While gullied land can occur on any land, they are often most prevalent on loess, sandy, or other soils with low cohesion.

See Also

Erosion; Soil Profile; Soil Texture