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A ravine is a landform that is narrower than a canyon and is often the product of streambank erosion. Ravines are typically classified as larger in scale than gullies, although smaller than valleys. [1] Ravines may also be called a cleuch, dell, ghout , gill or ghyll, glen, gorge, kloof (South Africa), and chine (Isle of Wight)
A valley is an elongated low area often running between hills or mountains and typically containing a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over a very long period. Some valleys are formed through erosion by glacial ice. These glaciers may remain present in ...
Canyon – Deep chasm between cliffs, includes gorge. Dale (landform) – Open valley; Coulee – Type of valley or drainage zone; Gully – Landform created by running water and/or mass movement eroding sharply into soil; Ravine – Small valley, often due to stream erosion; Valley – Low area between hills, often with a river running through it
The loss of fertile farmland due to gully erosion is a severe environmental problem that lowers crop quality and may cause famine and food shortages. It also causes the soil to lose organic content, which has an impact on plant viability. As items washed from fields end up in rivers, streams, or vacant land, erosion also contaminates the ecosystem.
While some may feel that native plants can be "weedy," there is a wide variety of plants to choose from and many can be every bit as attractive and well-managed as anything you may find in a nursery.
The debate between "native" and "exotic" plants gets complicated because in order for the term to mean anything, we have to agree on the definition.
The Bode Gorge (German: Bodetal) is a 10 kilometres (6.2 mi) long ravine that forms part of the Bode valley between Treseburg and Thale in the Harz Mountains of central Germany. The German term, Bodetal (literally "Bode Valley"), is also used in a wider sense to refer to the valleys of the Warme and Kalte Bode rivers that feed the River Bode.
In southern Louisiana the word coulée (also spelled coolie) originally meant a gully or ravine usually dry or intermittent but becoming sizable during rainy weather. As stream channels were dredged or canalized, the term was increasingly applied to perennial streams, generally smaller than bayous. The term is also used for small ditches or ...