Difference between revisions of "AY Honors/Soils/Answer Key"

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'''Aridisol''' (from the Latin ''aridus'', for &#8220;dry&#8221;) is a dry type of [[soil]], very poor concentration of [[organic]] matter (In this case decomposed material, [[humus]]). <br>
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'''Aridisols''' are a soil order in [[USA soil taxonomy]].  Aridisols (from the Latin ''aridus'', for &#8220;dry&#8221;) form in an arid or semi-arid climate.  Aridisols dominate the [[deserts and xeric shrublands]] which occupy about one third of the Earth's land surface.  Aridisols have a very poor concentration of [[organic]] matter (In this case decomposed material, [[humus]]). <br>
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Aridisols are rich in [[sodium]] (K), which makes them an alkaline soil type.
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Water deficiency is the major defining characteristic of Aridisols.  Also required is sufficient age to exhibit sub-soil weathering and development. Imperfect leaching in Aridisols often results in one or more subsurface soil horizons in which suspended or dissolved minerals have been deposited: silicate clays, sodium, calcium carbonate, gypsum or soluble salts. These subsoil horizons can also be cemented by carbonates, gypsum or silica. Accumulation of salts on the surface can result in salinization.
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==Suborders==
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:Argids (clay)
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:Calcids (carbonate)
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:Cambidianouses (tropical)
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:Cryrids (cold)
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:Duripidus (durpianlious)
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:Gypsids (gypsum)
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:Salids (salts)
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{{stub}}
  
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Mainly found in the northwest of [[America]], sparsely vegetated by plants very tolerant to a dry climate.
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==See also==
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[[Pedogenesis]] <br>
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[[Pedology (soil study)]] <br>
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[[Soil classification]] <br>
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[[Soil science]] <br>
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[[Soil type]] <br>
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==External Links==
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SSSA glossary - [http://www.soils.org/cgi-bin/gloss_search.cgi?QUERY=Aridisols  aridisols]<br>
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USDA - NRCS - [http://soils.usda.gov/technical/classification/orders/aridisols.html aridisols]<br>
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University of Idaho - [http://soils.ag.uidaho.edu/soilorders/aridisols.htm aridisols]<br>
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University of Florida - [http://grunwald.ifas.ufl.edu/Nat_resources/soil_orders/aridisols.htm aridisols]<br>
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[[Category:Soil science]]

Revision as of 22:36, 14 February 2005

Aridisols are a soil order in USA soil taxonomy. Aridisols (from the Latin aridus, for “dry”) form in an arid or semi-arid climate. Aridisols dominate the deserts and xeric shrublands which occupy about one third of the Earth's land surface. Aridisols have a very poor concentration of organic matter (In this case decomposed material, humus).
Water deficiency is the major defining characteristic of Aridisols. Also required is sufficient age to exhibit sub-soil weathering and development. Imperfect leaching in Aridisols often results in one or more subsurface soil horizons in which suspended or dissolved minerals have been deposited: silicate clays, sodium, calcium carbonate, gypsum or soluble salts. These subsoil horizons can also be cemented by carbonates, gypsum or silica. Accumulation of salts on the surface can result in salinization.

Suborders

Argids (clay)
Calcids (carbonate)
Cambidianouses (tropical)
Cryrids (cold)
Duripidus (durpianlious)
Gypsids (gypsum)
Salids (salts)

Template:Stub

See also

Pedogenesis
Pedology (soil study)
Soil classification
Soil science
Soil type

External Links

SSSA glossary - aridisols
USDA - NRCS - aridisols
University of Idaho - aridisols
University of Florida - aridisols

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