Orthent

(redirected from Orthents)

Orthent

[′ȯr·thənt]
(geology)
A suborder of the soil order Entisol, well drained and of medium or fine texture, usually shallow to bedrock and lacking evidence of horizonation; occurs mostly on strong slopes.
References in periodicals archive ?
Pedon A-6 had shallow depth with extremely gravelly subsurface and classified as Entisols and Orthents suborder.
The dominant soil type of these two hillslopes is shallow lithosols according to the FAO soil classification (Orthents according to Soil Taxonomy) and the parent material is quartz sandstone.
Los suelos que se han desarrollado son Orthents y Xerepts (USDA, 2010), fundamentalmente con textura franco-arenosa y con pH alrededor de 6.
En general, los suelos de los BES La Menta y Timbes presentaron poco desarrollo del horizonte superficial, con presencia de material no consolidado, ubicados en un clima seco y con vegetacion propia de este ambiente ecologico, por lo tanto correspondio a la categoria Orden Entisoles, poco profundos (<60 cm) y por sus valores de arcilla y valores bajos de materia organica a la categoria del suborden Orthents, segun el protocolo del Departamento de Agricultura de Estados Unidos (Soil Survey Staff, 2007) segun el protocolo del Departamento de Agricultura de Estados Unidos (Soil Survey Staff, 2010) y lo reportado en el Atlas de Piura (Bernex de Falen & Revesz, 1988).
Son suelos con muy poca o ninguna evidencia de desarrollo de horizontes pedogeneticos que pertenecen a los subordenes Fluvents y Orthents. De acuerdo con su regimen de humedad ustico son del gran grupo Ustifluvents, Ustorthents y fueron ubicados en el subgrupo Typic.
Soil types as described by Kiefer (1982) indicate the dry sand prairie and dry sand savanna areas occur in excessively drained Chelsea fine sand, while the drymesic sand prairie area occurs on somewhat poorly drained Orthents, loamy soils, which are characterized by surface layers of fine sandy loam or loamy fine sand.
The native soils of Greece are limited in variety: largely Entisols (Fluvents, Orthents, Psamments), Inceptisols (Xerepts, Andepts, Anthrepts), Alfisols (Xeralfs), Mollisols (Xerolls), Vertisols (Xererts) and Andisols (Food and Agriculture Organization 1981).
The dominant suborders of Entisols are Aquents, Arents, Fluvents, Orthents, and Psamments (Table 3-5).
1995) are shallow, without distinct pedogenic horizons (Orthents), and classified as Regosols in the FAO soil taxonomy and as PupCambols in the China soil taxonomy.
Unidades cartograficas Area (Simbolo) ha % Orden Suborden Asociacion Intrusivos 2190 12 Entisol Orthents Acidos (IN) Inceptisol Ustepts Unidades cartograficas Taxonomia (Simbolo) Gran Grupo Subgrupo Asociacion Intrusivos Ustorthents Typic Ustorthents Acidos (IN) Dystrustepts Andic Dystrustepts Typic Dystrustepts Cuadro 10.
Soils in the region are mainly Udolls and Orthents that are generally deep and range from medium to moderately fine-textured.
La mayoria de los Entisoles considerados en el presente trabajo son de origen aluvial y pertenecen a los subordenes Aquents y Fluvents; los Orthents, comunes en Costa Rica, no se utilizaron debido a su poca profundidad.