entisol


entisol
/en"ti sawl', -sol'/, n.
a fertile soil of recent origin that is distinguished by a lack of horizons and is found worldwide in all climates.
[1970-75; ent- (according to the U.S. Soil Conservation Service, initiator of the term, a "meaningless syllable") + -I- + -SOL]

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soil
 one of the 12 soil orders in the U.S. Soil Taxonomy (soil). Entisols are soils defined by the absence or near absence of horizons (horizon) (layers) that clearly reflect soil-forming processes. Occupying just under 11 percent of the nonpolar continental land surface of the Earth, they are formed on surface features of recent geologic origin, on underlying material that is highly resistant to weathering, or under conditions of extreme wetness or dryness. Typical geographic settings include areas of active erosion or deposition (i.e., steep slopes or floodplains), areas of quartzite bedrock or quartz sand (i.e., major desert and dune regions), and wetlands. Arid Entisols covering vast areas in Arctic and Antarctic regions also have been mapped. They often are associated with urban areas because of the tendency for human settlement to concentrate on river delta or coastal lands. They also can be created by disturbing the land, as in extraction, the moving of earth materials, or the disposal of waste products. Despite their lack of distinct horizons (an optimal condition for agricultural soils), Entisols are commonly arable if given an adequate supply of plant nutrients and water.

      Entisols differ from mere weathered earth materials (saprolite) by the partial formation of a surface horizon. They differ from Inceptisols (Inceptisol), another soil of recent origin, by a lesser subsurface accumulation of transported clay (clay mineral).

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Universalium. 2010.

Look at other dictionaries:

  • Entisol — Saltar a navegación, búsqueda Perfil de suelo Entisol En la clasificación del Soil Taxonomy, un Entisol se define como los suelos que no muestran ningún desarrollo definido de perfiles. Un Entisol no tiene horizontes diagnósticos , y la mayoría… …   Wikipedia Español

  • Entisol — Als Entisol bezeichnet man gemäß der USDA Bodenklassifikation sehr junge, flache Böden ohne erkennbare Schichtung, aber mit variablem pH Wert. Alle Böden, die sich nicht einem der anderen Bodentypen zuordnen lassen, sind Entisole. Aufgrund ihres… …   Deutsch Wikipedia

  • Entisol —   [Kurzwort, zu englisch recent »jung« und lateinisch solum »Boden«, »Erde«] der, s, in der amerikanischen Bodenklassifikation (Bodensystematik) Bezeichnung für sehr wenig oder unentwickelte Böden ohne (deutlich) erkennbare Horizonte, z. B.… …   Universal-Lexikon

  • Entisol — In USA soil taxonomy, Entisols are defined as soils that do not show any profile development. An Entisol has no diagnostic horizons, and most are basically unaltered from their parent rock.In Australia, most Entisols are known as Rudosols or… …   Wikipedia

  • entisol — noun A young soil that is high in mineral content, and has no horizons …   Wiktionary

  • Entisol — En|ti|sol der; Kunstw. zu engl. recent »jung« u. lat. solum »Boden, Erde«> Bez. für sehr wenig od. unterentwickelte Böden (in der amerik. Bodenklassifikation) …   Das große Fremdwörterbuch

  • entisol — /en ti sawl , sol /, n. a fertile soil of recent origin that is distinguished by a lack of horizons and is found worldwide in all climates. [1970 75; ent (according to the U.S. Soil Conservation Service, initiator of the term, a meaningless… …   Useful english dictionary

  • Tschadbecken — Staubsturm über dem Tschadbecken am 18. November 2004 Quelle: NASA Das Schari Logone Fl …   Deutsch Wikipedia

  • Clasificación de suelos — Colores de suelos. La clasificación de suelos es una categorización sistemática de suelos basado en características distintivas y en criterios de uso. Una clasificación de suelos es muy dinámica, en si mismo de la estructura del sistema, a las… …   Wikipedia Español

  • Soil — For other uses, see Soil (disambiguation). A represents soil; B represents laterite, a regolith; C represents saprolite, a less weathered regolith; the bottommost layer represents bedrock …   Wikipedia


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