Aridisols - Revision history

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2023-05-10T18:03:35Z

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← Older revision		Revision as of 14:03, 10 May 2023
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	Aridisols, (known as "dry soils") are the most widely distributed of the twelve [[soil]] orders defined by the United States Department of Agriculture (USDA), occupying about 19% of Earth’s terrestrial surface [2]. Aridisols are present in arid and semi-arid regions around the world, comprising large areas of five different continents. Specific countries and regions where aridisols are prevalent include the western United States, Argentina, Namibia, South Africa, areas of North Africa and the Horn of Africa, the Middle East, Kazakhstan, China, Mongolia, and Australia [2].		Aridisols, (known as "dry soils") are the most widely distributed of the twelve [[soil]] orders defined by the United States Department of [[Agriculture]] (USDA), occupying about 19% of Earth’s terrestrial surface [2]. Aridisols are present in arid and semi-arid regions around the world, comprising large areas of five different continents. Specific countries and regions where aridisols are prevalent include the western United States, Argentina, Namibia, South Africa, areas of North Africa and the Horn of Africa, the Middle East, Kazakhstan, China, Mongolia, and Australia [2].

	[[File:Aridisols_map.jpg]]		[[File:Aridisols_map.jpg]]

Njhenshu: The LinkTitles extension automatically added links to existing pages (https://github.com/bovender/LinkTitles).

2023-03-31T18:26:10Z

← Older revision		Revision as of 14:26, 31 March 2023
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	[[File:chihuahuan desert.jpg\|200px\|thumb\|left\|Chihuahuan Desert [https://www.desertusa.com/chihuahuan-desert.html]]]		[[File:chihuahuan desert.jpg\|200px\|thumb\|left\|Chihuahuan Desert [https://www.desertusa.com/chihuahuan-desert.html]]]

	Since net primary productivity in aridisol ecosystems is generally much lower than in wetter climates, certain soil biota (particularly termites) are of much importance for increasing the availability of nitrogen. Termites are considered a keystone species in the Chihuahuan Desert because of their efficient consumption of detritus (see: [[Detritusphere]]) and fixation of nitrogen (see: [[Nitrogen cycle]]) [10]. Multiple studies from the Chihuahuan Desert have found that termites are responsible for over 50% of mass losses of decaying surface litter, sometimes much greater [7]. One study indicated that creosotebush wood could take 100 years to fully decompose (see: [[Decomposition]]) without the presence of termites [11]. Additionally, termite feces are a significant source of nitrogen for desert soil ecosystems, which can have cascading benefits for fungal communities and the associated [[ecosystem services]] that they provide for vegetation and soil fauna [11].		Since net primary productivity in aridisol ecosystems is generally much lower than in wetter climates, certain soil biota (particularly [[termites]]) are of much importance for increasing the availability of nitrogen. Termites are considered a keystone species in the Chihuahuan Desert because of their efficient consumption of detritus (see: [[Detritusphere]]) and fixation of nitrogen (see: [[Nitrogen cycle]]) [10]. Multiple studies from the Chihuahuan Desert have found that termites are responsible for over 50% of mass losses of decaying surface litter, sometimes much greater [7]. One study indicated that creosotebush wood could take 100 years to fully decompose (see: [[Decomposition]]) without the presence of termites [11]. Additionally, termite feces are a significant source of nitrogen for desert soil ecosystems, which can have cascading benefits for fungal communities and the associated [[ecosystem services]] that they provide for vegetation and soil fauna [11].

	Other aridisol soil fauna of note include Darkling Beetles (''Tenebrionidae''), which actively consume surface litter, and scorpions (order ''Scorpiones''), which are often a dominant predator in arid and semiarid soil ecosystems [3,5].		Other aridisol soil fauna of note include Darkling Beetles (''Tenebrionidae''), which actively consume surface litter, and [[scorpions]] (order ''Scorpiones''), which are often a dominant predator in arid and semiarid soil ecosystems [3,5].

	== Land Use ==		== Land Use ==

Njhenshu: The LinkTitles extension automatically added links to existing pages (https://github.com/bovender/LinkTitles).

2022-05-06T18:01:21Z

← Older revision		Revision as of 14:01, 6 May 2022
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	[9]USDA Natural Resources Conservation Service. Aridisols Map. https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/class/maps/?cid=nrcs142p2_053595		[9]USDA Natural Resources Conservation Service. Aridisols Map. https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/class/maps/?cid=nrcs142p2_053595

	[10]Whitford, W.G. Keystone [[arthropods]] as webmasters in desert ecosystems. 2000. In: Coleman, D.C., and Hendrix, P.F. (Eds.), Invertebrates as Webmasters in Ecosystems. CAB International, Wallingford, UK, pp. 25-41.		[10]Whitford, W.G. Keystone [[arthropods]] as webmasters in desert ecosystems. 2000. In: Coleman, D.C., and Hendrix, P.F. (Eds.), [[Invertebrates]] as Webmasters in Ecosystems. CAB International, Wallingford, UK, pp. 25-41.

	[11]Zak, J., and Whitford, W. Interactions among soil biota in desert ecosystems. 1988. Agriculture, Ecosystems, and Environment. 24:87-100.		[11]Zak, J., and Whitford, W. Interactions among soil biota in desert ecosystems. 1988. Agriculture, Ecosystems, and Environment. 24:87-100.

Wmjackso at 18:56, 7 May 2021

2021-05-07T18:56:02Z

← Older revision		Revision as of 14:56, 7 May 2021
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	Aridisols, (known as "dry soils") are the most widely distributed of the twelve [[soil]] orders defined by the United States Department of Agriculture (USDA), occupying about 19% of Earth’s terrestrial surface [2]. Aridisols are present in arid and semi-arid regions around the world, comprising large areas of five different continents. Specific countries and regions where aridisols are prevalent include the western United States, Argentina, Namibia, South Africa, areas of North Africa and the Horn of Africa, the Middle East, Kazakhstan, China, Mongolia, and Australia [2].		Aridisols, (known as "dry soils") are the most widely distributed of the twelve [[soil]] orders defined by the United States Department of Agriculture (USDA), occupying about 19% of Earth’s terrestrial surface [2]. Aridisols are present in arid and semi-arid regions around the world, comprising large areas of five different continents. Specific countries and regions where aridisols are prevalent include the western United States, Argentina, Namibia, South Africa, areas of North Africa and the Horn of Africa, the Middle East, Kazakhstan, China, Mongolia, and Australia [2].

	[[File:Aridisols_map.jpg]]		[[File:Aridisols_map.jpg]]

	Map of aridisol suborder distribution in the United States [9]		Map of aridisol suborder distribution in the United States [9]
	== Description ==		== Description ==

Wmjackso at 18:55, 7 May 2021

2021-05-07T18:55:38Z

← Older revision		Revision as of 14:55, 7 May 2021
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	Aridisols, (known as "dry soils") are the most widely distributed of the twelve [[soil]] orders defined by the United States Department of Agriculture (USDA), occupying about 19% of Earth’s terrestrial surface [2]. Aridisols are present in arid and semi-arid regions around the world, comprising large areas of five different continents. Specific countries and regions where aridisols are prevalent include the western United States, Argentina, Namibia, South Africa, areas of North Africa and the Horn of Africa, the Middle East, Kazakhstan, China, Mongolia, and Australia [2].		Aridisols, (known as "dry soils") are the most widely distributed of the twelve [[soil]] orders defined by the United States Department of Agriculture (USDA), occupying about 19% of Earth’s terrestrial surface [2]. Aridisols are present in arid and semi-arid regions around the world, comprising large areas of five different continents. Specific countries and regions where aridisols are prevalent include the western United States, Argentina, Namibia, South Africa, areas of North Africa and the Horn of Africa, the Middle East, Kazakhstan, China, Mongolia, and Australia [2].
			[[File:Aridisols_map.jpg]]
			Map of aridisol suborder distribution in the United States [9]
	== Description ==		== Description ==

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	[[File:chihuahuan desert.jpg\|200px\|thumb\|left\|Chihuahuan Desert [https://www.desertusa.com/chihuahuan-desert.html]]]		[[File:chihuahuan desert.jpg\|200px\|thumb\|left\|Chihuahuan Desert [https://www.desertusa.com/chihuahuan-desert.html]]]

	Since net primary productivity in aridisol ecosystems is generally much lower than in wetter climates, certain soil biota (particularly termites) are of much importance for increasing the availability of nitrogen. Termites are considered a keystone species in the Chihuahuan Desert because of their efficient consumption of detritus (see: [[Detritusphere]]) and fixation of nitrogen (see: [[Nitrogen cycle]]) [9]. Multiple studies from the Chihuahuan Desert have found that termites are responsible for over 50% of mass losses of decaying surface litter, sometimes much greater [7]. One study indicated that creosotebush wood could take 100 years to fully decompose (see: [[Decomposition]]) without the presence of termites [10]. Additionally, termite feces are a significant source of nitrogen for desert soil ecosystems, which can have cascading benefits for fungal communities and the associated [[ecosystem services]] that they provide for vegetation and soil fauna [10].		Since net primary productivity in aridisol ecosystems is generally much lower than in wetter climates, certain soil biota (particularly termites) are of much importance for increasing the availability of nitrogen. Termites are considered a keystone species in the Chihuahuan Desert because of their efficient consumption of detritus (see: [[Detritusphere]]) and fixation of nitrogen (see: [[Nitrogen cycle]]) [10]. Multiple studies from the Chihuahuan Desert have found that termites are responsible for over 50% of mass losses of decaying surface litter, sometimes much greater [7]. One study indicated that creosotebush wood could take 100 years to fully decompose (see: [[Decomposition]]) without the presence of termites [11]. Additionally, termite feces are a significant source of nitrogen for desert soil ecosystems, which can have cascading benefits for fungal communities and the associated [[ecosystem services]] that they provide for vegetation and soil fauna [11].

	Other aridisol soil fauna of note include Darkling Beetles (''Tenebrionidae''), which actively consume surface litter, and scorpions (order ''Scorpiones''), which are often a dominant predator in arid and semiarid soil ecosystems [3,5].		Other aridisol soil fauna of note include Darkling Beetles (''Tenebrionidae''), which actively consume surface litter, and scorpions (order ''Scorpiones''), which are often a dominant predator in arid and semiarid soil ecosystems [3,5].
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	[[microarthropods]] to fluffgrass litter disappearance in the Chihuahuan Desert. Oecologia. 67:31-34.		[[microarthropods]] to fluffgrass litter disappearance in the Chihuahuan Desert. Oecologia. 67:31-34.

	[8]Soil Taxonomy, Second Edition. 1999. United States Department of Agriculture Natural Resources Conservation Service. pgs 329-330.		[8]Soil Taxonomy, Second Edition. 1999. United States Department of Agriculture Natural Resources Conservation Service. pgs 329-330.

			[9]USDA Natural Resources Conservation Service. Aridisols Map. https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/class/maps/?cid=nrcs142p2_053595

	[9]Whitford, W.G. Keystone [[arthropods]] as webmasters in desert ecosystems. 2000. In: Coleman, D.C., and Hendrix, P.F. (Eds.), Invertebrates as Webmasters in Ecosystems. CAB International, Wallingford, UK, pp. 25-41.		[10]Whitford, W.G. Keystone [[arthropods]] as webmasters in desert ecosystems. 2000. In: Coleman, D.C., and Hendrix, P.F. (Eds.), Invertebrates as Webmasters in Ecosystems. CAB International, Wallingford, UK, pp. 25-41.

	[10]Zak, J., and Whitford, W. Interactions among soil biota in desert ecosystems. 1988. Agriculture, Ecosystems, and Environment. 24:87-100.		[11]Zak, J., and Whitford, W. Interactions among soil biota in desert ecosystems. 1988. Agriculture, Ecosystems, and Environment. 24:87-100.

Wmjackso at 18:51, 7 May 2021

2021-05-07T18:51:55Z

← Older revision		Revision as of 14:51, 7 May 2021
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	[[File:chihuahuan desert.jpg\|200px\|thumb\|left\|Chihuahuan Desert [https://www.desertusa.com/chihuahuan-desert.html]]]		[[File:chihuahuan desert.jpg\|200px\|thumb\|left\|Chihuahuan Desert [https://www.desertusa.com/chihuahuan-desert.html]]]

	Since net primary productivity in aridisol ecosystems is generally much lower than in wetter climates, certain soil biota (particularly termites) are of much importance for increasing the availability of nitrogen. Termites are considered a keystone species in the Chihuahuan Desert because of their efficient consumption of detritus (see: [[Detritusphere]]) and fixation of nitrogen (see: [[Nitrogen cycle]]) [3]. Multiple studies from the Chihuahuan Desert have found that termites are responsible for over 50% of mass losses of decaying surface litter, sometimes much greater [6]. One study indicated that creosotebush wood could take 100 years to fully decompose (see: [[Decomposition]]) without the presence of termites [8]. Additionally, termite feces are a significant source of nitrogen for desert soil ecosystems, which can have cascading benefits for fungal communities and the associated [[ecosystem services]] that they provide for vegetation and soil fauna [8].		Since net primary productivity in aridisol ecosystems is generally much lower than in wetter climates, certain soil biota (particularly termites) are of much importance for increasing the availability of nitrogen. Termites are considered a keystone species in the Chihuahuan Desert because of their efficient consumption of detritus (see: [[Detritusphere]]) and fixation of nitrogen (see: [[Nitrogen cycle]]) [9]. Multiple studies from the Chihuahuan Desert have found that termites are responsible for over 50% of mass losses of decaying surface litter, sometimes much greater [7]. One study indicated that creosotebush wood could take 100 years to fully decompose (see: [[Decomposition]]) without the presence of termites [10]. Additionally, termite feces are a significant source of nitrogen for desert soil ecosystems, which can have cascading benefits for fungal communities and the associated [[ecosystem services]] that they provide for vegetation and soil fauna [10].

	Other aridisol soil fauna of note include Darkling Beetles (''Tenebrionidae''), which actively consume surface litter, and scorpions (order ''Scorpiones''), which are often a dominant predator in arid and semiarid soil ecosystems [3].		Other aridisol soil fauna of note include Darkling Beetles (''Tenebrionidae''), which actively consume surface litter, and scorpions (order ''Scorpiones''), which are often a dominant predator in arid and semiarid soil ecosystems [3,5].

	== Land Use ==		== Land Use ==
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	[4]Fesenmyer, K.A., Dauwalter, D.C., Evans, C., and Allai, T. Livestock Management, beaver, and climate influences on riparian vegetation in a semi-arid landscape. 2018. PLoS ONE. 13(12): e0208928.		[4]Fesenmyer, K.A., Dauwalter, D.C., Evans, C., and Allai, T. Livestock Management, beaver, and climate influences on riparian vegetation in a semi-arid landscape. 2018. PLoS ONE. 13(12): e0208928.

	[5]~~Rossi~~, M.J. ~~et al~~. ~~Vegetation and terrain drivers of infiltration depth along a semiarid hillslope~~. ~~2018~~. ~~Science of the Total Environment~~. ~~644~~:~~1399~~-~~1408~~.		[5] Polis, G.A. Complex trophic interactions in deserts: an empirical critique of food-web theory. 1991. Am. Nat. 138:123-155.

	[6] Silva, S.I., MacKay, W.P. and Whitford, W.G., 1985. The relative contributions of termites and		[6]Rossi, M.J. et al. Vegetation and terrain drivers of infiltration depth along a semiarid hillslope. 2018. Science of the Total Environment. 644:1399-1408.

			[7] Silva, S.I., MacKay, W.P. and Whitford, W.G., 1985. The relative contributions of termites and
	[[microarthropods]] to fluffgrass litter disappearance in the Chihuahuan Desert. Oecologia. 67:31-34.		[[microarthropods]] to fluffgrass litter disappearance in the Chihuahuan Desert. Oecologia. 67:31-34.

	[7]Soil Taxonomy, Second Edition. 1999. United States Department of Agriculture Natural Resources Conservation Service. pgs 329-330.		[8]Soil Taxonomy, Second Edition. 1999. United States Department of Agriculture Natural Resources Conservation Service. pgs 329-330.

			[9]Whitford, W.G. Keystone [[arthropods]] as webmasters in desert ecosystems. 2000. In: Coleman, D.C., and Hendrix, P.F. (Eds.), Invertebrates as Webmasters in Ecosystems. CAB International, Wallingford, UK, pp. 25-41.

	[8]Zak, J., and Whitford, W. Interactions among soil biota in desert ecosystems. 1988. Agriculture, Ecosystems, and Environment. 24:87-100.		[10]Zak, J., and Whitford, W. Interactions among soil biota in desert ecosystems. 1988. Agriculture, Ecosystems, and Environment. 24:87-100.

Wmjackso at 18:02, 7 May 2021

2021-05-07T18:02:46Z

← Older revision		Revision as of 14:02, 7 May 2021
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	[[File:chihuahuan desert.jpg\|200px\|thumb\|left\|Chihuahuan Desert [https://www.desertusa.com/chihuahuan-desert.html]]]		[[File:chihuahuan desert.jpg\|200px\|thumb\|left\|Chihuahuan Desert [https://www.desertusa.com/chihuahuan-desert.html]]]

	Since net primary productivity in aridisol ecosystems is generally much lower than in wetter climates, certain soil biota (particularly termites) are of much importance for increasing the availability of nitrogen. Termites are considered a keystone species in the Chihuahuan Desert because of their efficient consumption of detritus (see: [[Detritusphere]]) and fixation of nitrogen (see: [[Nitrogen cycle]]) [3]. Multiple studies from the Chihuahuan Desert have found that termites are responsible for over 50% of mass losses of decaying surface litter, sometimes much greater [6]. One study indicated that creosotebush wood could take 100 years to fully decompose (see:[[Decomposition]] without the presence of termites [8]. Additionally, termite feces are a significant source of nitrogen for desert soil ecosystems, which can have cascading benefits for fungal communities and the associated [[ecosystem services]] that they provide for vegetation and soil fauna [8].		Since net primary productivity in aridisol ecosystems is generally much lower than in wetter climates, certain soil biota (particularly termites) are of much importance for increasing the availability of nitrogen. Termites are considered a keystone species in the Chihuahuan Desert because of their efficient consumption of detritus (see: [[Detritusphere]]) and fixation of nitrogen (see: [[Nitrogen cycle]]) [3]. Multiple studies from the Chihuahuan Desert have found that termites are responsible for over 50% of mass losses of decaying surface litter, sometimes much greater [6]. One study indicated that creosotebush wood could take 100 years to fully decompose (see: [[Decomposition]]) without the presence of termites [8]. Additionally, termite feces are a significant source of nitrogen for desert soil ecosystems, which can have cascading benefits for fungal communities and the associated [[ecosystem services]] that they provide for vegetation and soil fauna [8].

	Other aridisol soil fauna of note include Darkling Beetles (''Tenebrionidae''), which actively consume surface litter, and scorpions (order ''Scorpiones''), which are often a dominant predator in arid and semiarid soil ecosystems [3].		Other aridisol soil fauna of note include Darkling Beetles (''Tenebrionidae''), which actively consume surface litter, and scorpions (order ''Scorpiones''), which are often a dominant predator in arid and semiarid soil ecosystems [3].

Wmjackso at 18:01, 7 May 2021

2021-05-07T18:01:58Z

← Older revision		Revision as of 14:01, 7 May 2021
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	== Description ==		== Description ==

	Aridisols are found in arid and semiarid climates, and thus are characterized by an aridic soil moisture regime and somewhat weak profile development, often consisting of sandy, gravelly [[loam]]s [1]. The lack of soil moisture distinguishes them from Inceptisols and Entisols, which are also characterized by weak profile development. Aridisols also differ due to having an ochric epipedon, and any of either a cambic horizon, argillic horizon, and/or salic horizon [6]. The ochric epipedon extends from the A to the upper B horizon, and is light-colored due to the lack of organic matter present in aridisols [1]. The argillic horizon forms via subsurface accumulation of silicate clays, and the salic horizon is formed from the accumulation of salts [1]. Calcium carbonate often accumulates in the B and C horizons, in a process called calcification [6].		Aridisols are found in arid and semiarid climates, and thus are characterized by an aridic soil moisture regime and somewhat weak profile development (see: [[Soil Horizons]]), often consisting of sandy, gravelly [[loam]]s [1]. The lack of soil moisture distinguishes them from Inceptisols and Entisols, which are also characterized by weak profile development. Aridisols also differ due to having an ochric epipedon, and any of either a cambic horizon, argillic horizon, and/or salic horizon [6]. The ochric epipedon extends from the A to the upper B horizon, and is light-colored due to the lack of organic matter present in aridisols [1]. The argillic horizon forms via subsurface accumulation of silicate clays, and the salic horizon is formed from the accumulation of salts [1]. Calcium carbonate often accumulates in the B and C horizons, in a process called calcification [6].

	[[File:Aridisol soil profile from nrcs.jpg\|200px\|thumb\|left\|Aridisol soil profile, from NRCS [https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/class/maps/?cid=nrcs142p2_053594]]]		[[File:Aridisol soil profile from nrcs.jpg\|200px\|thumb\|left\|Aridisol soil profile, from NRCS [https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/class/maps/?cid=nrcs142p2_053594]]]

	The threshold for soil moisture content in aridisols is that sufficient moisture for plant growth is never sustained for 90 consecutive days [6]. The dryness of aridisols and lack of vegetation cover means that these soils are very susceptible to [[erosion]] by wind and by water. This is often exacerbated by land uses such as livestock grazing and construction, which loosen topsoil and remove sources of shear strength, primarily desert brush.		The threshold for soil moisture content in aridisols is that sufficient moisture for plant growth is never sustained for 90 consecutive days [6]. The dryness of aridisols and lack of vegetation cover means that these soils are very susceptible to [[soil erosion]] by wind and by water. This is often exacerbated by land uses such as livestock grazing and construction, which loosen topsoil and remove sources of shear strength, primarily desert brush.

	== Ecology ==		== Ecology ==
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	[[File:chihuahuan desert.jpg\|200px\|thumb\|left\|Chihuahuan Desert [https://www.desertusa.com/chihuahuan-desert.html]]]		[[File:chihuahuan desert.jpg\|200px\|thumb\|left\|Chihuahuan Desert [https://www.desertusa.com/chihuahuan-desert.html]]]

	Since net primary productivity in aridisol ecosystems is generally much lower than in wetter climates, certain soil biota (particularly termites) are of much importance for increasing the availability of nitrogen. Termites are considered a keystone species in the Chihuahuan Desert because of their efficient consumption of detritus and fixation of nitrogen [3]. Multiple studies from the Chihuahuan Desert have found that termites are responsible for over 50% of mass losses of decaying surface litter, sometimes much greater [6]. One study indicated that creosotebush wood could take 100 years to fully decompose without the presence of termites [8]. Additionally, termite feces are a significant source of nitrogen for desert soil ecosystems, which can have cascading benefits for fungal communities and the associated [[ecosystem services]] that they provide for vegetation and soil fauna [8].		Since net primary productivity in aridisol ecosystems is generally much lower than in wetter climates, certain soil biota (particularly termites) are of much importance for increasing the availability of nitrogen. Termites are considered a keystone species in the Chihuahuan Desert because of their efficient consumption of detritus (see: [[Detritusphere]]) and fixation of nitrogen (see: [[Nitrogen cycle]]) [3]. Multiple studies from the Chihuahuan Desert have found that termites are responsible for over 50% of mass losses of decaying surface litter, sometimes much greater [6]. One study indicated that creosotebush wood could take 100 years to fully decompose (see:[[Decomposition]] without the presence of termites [8]. Additionally, termite feces are a significant source of nitrogen for desert soil ecosystems, which can have cascading benefits for fungal communities and the associated [[ecosystem services]] that they provide for vegetation and soil fauna [8].

	Other aridisol soil fauna of note include Darkling Beetles (''Tenebrionidae''), which actively consume surface litter, and scorpions (order ''Scorpiones''), which are often a dominant predator in arid and semiarid soil ecosystems [3].		Other aridisol soil fauna of note include Darkling Beetles (''Tenebrionidae''), which actively consume surface litter, and scorpions (order ''Scorpiones''), which are often a dominant predator in arid and semiarid soil ecosystems [3].

Wmjackso at 17:57, 7 May 2021

2021-05-07T17:57:19Z

← Older revision		Revision as of 13:57, 7 May 2021
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	[[File:Aridisol soil profile from nrcs.jpg\|200px\|thumb\|left\|Aridisol soil profile, from NRCS [https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/class/maps/?cid=nrcs142p2_053594]]]		[[File:Aridisol soil profile from nrcs.jpg\|200px\|thumb\|left\|Aridisol soil profile, from NRCS [https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/class/maps/?cid=nrcs142p2_053594]]]

	The threshold for soil moisture content in aridisols is that sufficient moisture for plant growth is never sustained for 90 consecutive days [6]. The dryness of aridisols and lack of vegetation cover means that these soils are very susceptible to erosion by wind and by water. This is often exacerbated by land uses such as livestock grazing and construction, which loosen topsoil and remove sources of shear strength, primarily desert brush.		The threshold for soil moisture content in aridisols is that sufficient moisture for plant growth is never sustained for 90 consecutive days [6]. The dryness of aridisols and lack of vegetation cover means that these soils are very susceptible to [[erosion]] by wind and by water. This is often exacerbated by land uses such as livestock grazing and construction, which loosen topsoil and remove sources of shear strength, primarily desert brush.

	== Ecology ==		== Ecology ==

Wmjackso at 17:54, 7 May 2021

2021-05-07T17:54:59Z

← Older revision		Revision as of 13:54, 7 May 2021
Line 4:		Line 4:
	== Description ==		== Description ==

	Aridisols are found in arid and semiarid climates, and thus are characterized by an aridic soil moisture regime and somewhat weak profile development, often consisting of sandy, gravelly [[~~loams~~]] [1]. The lack of soil moisture distinguishes them from Inceptisols and Entisols, which are also characterized by weak profile development. Aridisols also differ due to having an ochric epipedon, and any of either a cambic horizon, argillic horizon, and/or salic horizon [6]. The ochric epipedon extends from the A to the upper B horizon, and is light-colored due to the lack of organic matter present in aridisols [1]. The argillic horizon forms via subsurface accumulation of silicate clays, and the salic horizon is formed from the accumulation of salts [1]. Calcium carbonate often accumulates in the B and C horizons, in a process called calcification [6].		Aridisols are found in arid and semiarid climates, and thus are characterized by an aridic soil moisture regime and somewhat weak profile development, often consisting of sandy, gravelly [[loam]]s [1]. The lack of soil moisture distinguishes them from Inceptisols and Entisols, which are also characterized by weak profile development. Aridisols also differ due to having an ochric epipedon, and any of either a cambic horizon, argillic horizon, and/or salic horizon [6]. The ochric epipedon extends from the A to the upper B horizon, and is light-colored due to the lack of organic matter present in aridisols [1]. The argillic horizon forms via subsurface accumulation of silicate clays, and the salic horizon is formed from the accumulation of salts [1]. Calcium carbonate often accumulates in the B and C horizons, in a process called calcification [6].

	[[File:Aridisol soil profile from nrcs.jpg\|200px\|thumb\|left\|Aridisol soil profile, from NRCS [https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/class/maps/?cid=nrcs142p2_053594]]]		[[File:Aridisol soil profile from nrcs.jpg\|200px\|thumb\|left\|Aridisol soil profile, from NRCS [https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/class/maps/?cid=nrcs142p2_053594]]]