
Inceptisols are a soil order in
USDA soil taxonomy
USDA soil taxonomy (ST) developed by the United States Department of Agriculture and the National Cooperative Soil Survey provides an elaborate Soil classification, classification of soil types according to several parameters (most commonly their p ...
. They form quickly through alteration of parent material. They are more developed than
Entisols
Entisols are soils, as defined under USDA soil taxonomy, that do not show any profile development other than an A-horizon (or “A” horizon). Entisols have no diagnostic horizons, and are unaltered from their parent material, which could ...
. They have no accumulation of clays,
iron oxide
An iron oxide is a chemical compound composed of iron and oxygen. Several iron oxides are recognized. Often they are non-stoichiometric. Ferric oxyhydroxides are a related class of compounds, perhaps the best known of which is rust.
Iron ...
,
aluminium oxide
Aluminium oxide (or aluminium(III) oxide) is a chemical compound of aluminium and oxygen with the chemical formula . It is the most commonly occurring of several Aluminium oxide (compounds), aluminium oxides, and specifically identified as alum ...
or organic matter. They have an ochric or
umbric horizon and a cambic subsurface horizon.
In the
World Reference Base for Soil Resources
The World Reference Base for Soil Resources (WRB) is an international soil classification system for naming soils and creating legends for soil maps. The currently valid version is the fourth edition 2022. It is edited by a working group of the I ...
(WRB), most Inceptisols are
Cambisols or
Umbrisols. Some may be
Nitisols. Many Aquepts belong to
Gleysols and
Stagnosols.
Suborders
*
Aquepts – with a water table close to the surface
*
Anthrepts In the USDA soil taxonomy, Anthrepts is a term for soil with evidence of human habitation and farming.
See also
*Anthrosols in the World Soil Classification.
*Inceptisols of which anthrepts are a suborder of.
References
{{reflist
Types of so ...
– with a
plaggen or
anthropic
Anthropic PBC is an American artificial intelligence (AI) startup company founded in 2021. Anthropic has developed a family of large language models (LLMs) named Claude as a competitor to OpenAI's ChatGPT and Google's Gemini. According to the ...
epipedon, a sign of intense and prolonged human activity
*
Gelepts – in very cold climates
*
Cryepts – in cold climates
*
Udepts – in humid climates
*
Ustepts – in semiarid and sub-humid climates'
*
Xerepts – in areas with very dry summers and moist winters
References
*
*
*
{{Authority control
United States Department of Agriculture
Pedology
Types of soil