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Topic: Aridisols

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	Aridisols
		Aridisols are classified on the basis of their soil moisture regime (more specifically referenced to the soil moisture control section), which is dry in all parts >50% of the time in most years, and not moist for as much as 90 consecutive days when the soil is warm enough (>80C) for plant growth.
		Aridisols occur on landscapes that are more than one million years old, a time scale that has allowed for development of accumulations of clay, carbonates, and silica.
		The Aridisols are composed of 7 suborders distinguished by (i) soil temperature regime, and (c) occurrence of particular diagnostic horizons:
	grunwald.ifas.ufl.edu /Nat_resources/soil_orders/aridisols.htm (2214 words)

	Aridisols - Wikipedia, the free encyclopedia
		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).
	en.wikipedia.org /wiki/Aridisols (154 words)

	Aridisols -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-25)
		Aridisols are a soil order in (additional info and facts about USA soil taxonomy) USA soil taxonomy.
		Aridisols dominate the (additional info and facts about deserts and xeric shrublands) deserts and xeric shrublands which occupy about one third of the Earth's land surface.
		Aridisols have a very poor concentration of (A fertilizer that is derived from animal or vegetable matter) organic matter (In this case decomposed material, (Partially decomposed organic matter; the organic component of soil) humus).
	www.absoluteastronomy.com /encyclopedia/a/ar/aridisols.htm (267 words)

	Keys to Soil Taxonomy: Suborders
		Aridisols that have a cryic soil temperature regime.
		Other Aridisols that have a gypsic or petrogypsic horizon that has its upper boundary within 100 cm of the soil surface and do not have a petrocalcic horizon overlying these horizons.
		Other Aridisols that have an argillic or natric horizon and do not have a petrocalcic horizon that has an upper boundary within 100 cm of the soil surface.
	www.pedosphere.com /resources/sg_usa/suborders.cfm?Order_ID=G (133 words)

	aridisols (Site not responding. Last check: 2007-10-25)
		Aridisol (from the Latin aridus, for “dry”) is a dry type of soil, very poor concentration of organic matter (In this case decomposed material, humus).
		Aridisols are rich in sodium (K), which makes them an alkaline soil type.
		Mainly found in the northwest of North America, sparsely vegetated by plants very tolerant to a dry climate.
	www.yourencyclopedia.net /aridisols.html (127 words)

	Chapter 48-Ecological Subregions of the United States
		There are Aridisols in combination with frigid and mesic soil temperature regimes, along with xeric and aridic soil moisture regimes.
		Aridisols, Entisols, Alfisols, Inceptisols, and Mollisols occur in combination with mesic and frigid soil temperature regimes, and xeric and aridic soil moisture regimes.
		Aridisols, Entisols, and Mollisols occur in combination with mesic and frigid soil temperature regimes, along with xeric and aridic soil moisture regimes.
	www.fs.fed.us /land/pubs/ecoregions/ch48.html (4676 words)

	Physical Geography, by Pete Morris (Site not responding. Last check: 2007-10-25)
		Aridisols are pale arid-lands soils, associated with B climates.
		With BW climates, and a surface of rock, sand, or aridisols, bioproductivity ranges from only 250 grams per square meter to near zero.
		True grasslands only have clumps of trees such as cottonwood congregating near streams or perched water tables, and their BS climate is matched by mollisols or aridisols, depending on the degree of aridity.
	homepage.smc.edu /morris_pete/physical/pg23.html (2999 words)

	Aridisols Map \| NRCS Soils
		The concept of Aridisols is based on the limited availability of soil moisture for sustained plant growth..
		Durids are the Aridisols that have a duripan.
		Gypsids are the Aridisols that have a gypsic or petrogypsic horizon.
	soils.usda.gov /technical/classification/orders/aridisols_map.html (300 words)

	Chapter 40-Ecological Subregions of the United States
		Soils include Aridisols and Entisols in combination with thermic and hyperthermic soil temperature regimes and aridic soil moisture regime on foothills and valleys.
		Aridisols and Entisols in combination with mesic and frigid soil temperature regimes, and aridic and xeric soil moisture regimes occur on mountains.
		Soils include Aridisols and Entisols with hyperthermic soil temperature regime and aridic soil moisture regime.
	www.fs.fed.us /land/pubs/ecoregions/ch40.html (1509 words)

	South Boulder Creek Plan - Open Space & Mountain Parks (Site not responding. Last check: 2007-10-25)
		In the Management Area, inceptisols are derived from clayey alluvium and are generally restricted to areas of poor drainage, tend to be areas of salt accumulation, and often underlie wetlands.
		As indicated by the name, aridisols are mineral soils in dry climates.
		Aridisols are typically not subject to intensive leaching either because of low levels of precipitation or a sheltered location.
	www.ci.boulder.co.us /openspace/publications/plans/sbc/InventoryReport/sbcch6.htm (2149 words)

	Aridisols home
		Aridisols contain subsurface horizons in which clays, calcium carbonate, silica, salts, and/or gypsum have accumulated.
		Aridisols occupy ~12.0% of the Earth's ice-free land area and ~8.3% of the US.
		Aridisols are used mainly for range, wildlife, and recreation.
	soils.ag.uidaho.edu /soilorders/aridisols.htm (132 words)

	CHAPTER IV
		Second case is the establishment of medium and low densities of electrical charges by ions of the electrical double layer as in Spodosols and Alfisols.
		Thus, Aridisols have less humus content in A horizon than typical Mollisols, which should generally increase the electrical potential and resistivity in top horizons of Aridisols compared with those of Mollisols.
		The subsoil of Mollisols and, especially, Aridisols are enriched with soluble salts, carbonates, and gypsum.
	larisa_pozd.tripod.com /disser/4cha.htm (7536 words)

	Species Selection Information System
		Chinese Soil Taxonomy (CST) is a most recent taxonomic soil classification of China after a long history of related researches from ancient to modern times and peculiarized with several main points concerning Anthrosols, Aridisols, Ferralisols, Alpine soils, its nomenclature, and mapping.
		Based on anthropogenic horizons as an anthrostagnic epipedon and hydragric horizon, a fimic epipedon and phos-agric horizon, and a irrgric epipedon or cumulic epipedon, Anthrosols are grouped into Stagnic Anthrosols, Fimic Anthrosols, Cumulic Anthrosols, and Irrgric Anthrosols.
		Aridisols are classified by the aridic epipedon and one or more of the following diagnostic horizons: salic, hypersalic, salipan, gypsic, hypergypsic, calcic, hypercalcic, calcicpan, argic, or cambic horizon whose upper boundaries are within 100 cm of the mineral soil surface.
	forages.oregonstate.edu /is/ssis/main.cfm?PageID=173 (285 words)

	Encyclopedia: Desert (Site not responding. Last check: 2007-10-25)
		High-altitude aerial view of irrigation in the Heart of the Sahara Irrigation (in agriculture) is the replacement or supplementation of rainfall with water from another source in order to grow crops.
		Soils that form in arid climates are predominantly mineral soils (classified as Aridisols) with low organic content such as salt.
		Soil is unconsolidated rock particles mixed with organic matter from plant decay.
	www.nationmaster.com /encyclopedia/Desert (7457 words)

	[No title] (Site not responding. Last check: 2007-10-25)
		Aridisols & their management (dry more than 6 months a year) CA, AZ, Utah, N. Mexico, western Texas #1 worldwide in area covered: Sahara, Asia, Australia, southern S. America.
		A long dry period and only short periods of wetness (except for irrigated aridisols) dominates the soil forming processes.
		The lack of water: -- reduces leaching* of basic cations (pH remains neutral to alkaline), -- retards mineral weathering, -- may accumulate salts (salic or gypsic diagnostic horizons) -- often calcareous (lime layers), sometimes lime-cemented duripan* *Aridisols with deep, thick carbonate and silica-cemented layers, may be old soils that developed during a wetter period.
	cast.csufresno.edu /faculty/sbenes/lectures/2000lectsinword/2000lect27&guestlecture.doc (1479 words)

	ARIDISOLS (Site not responding. Last check: 2007-10-25)
		Aridisols - soils formed in very dry climates
		This soil has an ochric epipedon, cambic B horizon over a calcic horizon.
		This aridisol has a slightly darker ochric epipedon, brighter cambic horizon and stronger calcium and silica cementation in a horizon than in slide 46.
	www.evsc.virginia.edu /~alm7d/soils/ids.html (125 words)

	Read about Desert at WorldVillage Encyclopedia. Research Desert and learn about Desert here! (Site not responding. Last check: 2007-10-25)
		Soils that form in arid climates are predominantly mineral soils (classified as
		Aridisols) with low organic content such as salt.
		The repeated accumulation of water in some soils causes distinct salt layers to form.
	encyclopedia.worldvillage.com /s/b/Desert (2404 words)

	Key to Soil Orders in Florida (Site not responding. Last check: 2007-10-25)
		This fact sheet is intended for anyone who has some understanding of Soil Taxonomy but who needs a simplified key to help distinguish one soil order from another.
		The soil orders not recognized in Florida are the Aridisols, Vertisols, Andisols, Gelosols, and Oxisols.
		The distribution of dominant soil orders in Florida is shown in Figure 1.
	edis.ifas.ufl.edu /SS113 (1499 words)

	Results from Form 1 of Page post3.htm (Site not responding. Last check: 2007-10-25)
		In our county, Aridisols is our soil order, Argids is our sub-order, Haplargids is our great group, and coarse-loamy is our particle size.
		The order of the soil my school is on is Aridisols, the suborder is Argids.
		The Soil Order at our school is Aridisols, the Suborder is Argids, the Great Group is Haplargids, and the Particle size is Coarse-loamy.
	nasc.uwyo.edu /gis/results1.htm (817 words)

	Mollisols and aridisols (from United States) -- Encyclopædia Britannica
		The Land > Soils > Mollisols and aridisols
		More results on "Mollisols and aridisols (from United States)" when you join.
		Aridisols are dry, desertlike soils that have low organic content and are sparsely vegetated by drought- or salt-tolerant plants.
	www.britannica.com /eb/article-209409 (965 words)

	Dr. Hossein Khademi page (Site not responding. Last check: 2007-10-25)
		Source of palygorskite in gypsiferous Aridisols and associated sediments from central Iran.
		Submicroscopy and stable isotope geochemistry of pedogenic carbonates and associated palygorskite in selected Aridisols from Iran.
		Source and distribution of gypsum in Aridisols of central Iran using stable isotope technique.
	www.iut.ac.ir /page.php?id=34 (163 words)

	s4chap2 (Site not responding. Last check: 2007-10-25)
		Aridisols are the dry soils of deserts (the root arid or id comes from the Latin aridus for dry).
		Salinization, or salt buildup is the greatest danger in using Aridisols for irrigated agriculture.
		Most areas of true desert are retained as wilderness though the margins may be used for grazing.
	www.soils.umn.edu /academics/classes/soil2125/doc/s4chap2.htm (1276 words)

	Aridisols - Encyclopedia Glossary Meaning Explanation Aridisols
		Here you will find more informations about Aridisols.
		If you find this encyclopedia or its sister projects useful,
		Accumulation of salts on the surface can result in salinization.
	www.encyclopedia-glossary.com /en/Aridisols.html (168 words)

	Percent of Land Area in Aridisols \| Analysis Products \| State of the Land \| NRCS
		This polygon map shows the percent of land in the Aridisols soil order in each STATSGO map unit.
		A group of soils in the broadest category of the the USDA "Soil Taxonomy." The Soil Taxonomy is a basic system of soil classification for making and interpreting soil surveys.
		There are 12 orders, differentiated by the presence or absence of diagnostic horizons: Alfisols, Andisols, Aridisols, Entisols, Gelisols, Histosols, Inceptisols, Mollisols, Oxisols, Spodosols, Ultisols, and Vertisols.
	www.nrcs.usda.gov /technical/land/meta/m4030.html (278 words)

	Soil Orders
		Aridisols are the soils of arid and semiarid environments where moisture is scarce.
		The coarse texture of aridisols makes it difficult to retain much moisture.
		Aridisols can be quite fertile soil if irrigation is properly used.
	www.uwsp.edu /geo/faculty/ritter/geog101/modules/soil_audio/soil_systems_5.html (656 words)

	[No title] (Site not responding. Last check: 2007-10-25)
		The U.S. Comprehensive Soil Classification System groups the soils of the world into 11 soil orders that are distinguished primarily by the presence of diagnostic horizons.
		Seven soil orders (Oxisols, Ultisols, Vertisols, Alfisols, Spodosols, Mollisols, and Aridisols) have well-developed horizons and can often be associated with particular climatic regimes.
		Oxisols Vertisols Spodosols Aridisols True/False Questions In soil water balance, the difference between water use and water need is called the deficit.
	www3.interscience.wiley.com:8100 /legacy/college/strahler/0471238007/studyguide/s_ch21.doc (1150 words)

	Classification of the Soils
		Order - There are 10 orders: Entisols, Vertisols, Inceptisols, Aridisols, Mollisols, Spodosols, Alfisols, Ultisols, Oxisols, and Histosols.
		They are Aridisols, Entisols, Histosols, Inceptisols, and Mollisols.
		They are: Aridisols - Kawaihae series, Entisols - Kilauea series, and Mollisols - Mahukona series.
	www.ctahr.hawaii.edu /soilsurvey/Hawaii/Htm/classification.htm (1360 words)

	Lecture 18 (Site not responding. Last check: 2007-10-25)
		These are dry-land soils, and are the most abundant soil type worldwide.
		Aridisols are light-colored, rich in carbonates, and are typically vegetated with bunchgrasses and shrubs.
		Plate 2 in the textbook shows an Aridisol of the suborder Argids.
	jan.ucc.nau.edu /~doetqp-p/courses/env320/lec18/Lec18.html (947 words)

	aridisols (Site not responding. Last check: 2007-10-25)
		These soils may have an ochric epipedon and horizons with accumulation of carbonates, gypsum, and/or halite, or sodium chloride.
		Salinization, or salt build-up, is the greatest danger in using Aridisols of irrigated agriculture.
		These dry soils are too dry for mesophytic plants to grow.
	houzi.org /aridisols.html (103 words)

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