brown earth

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Related to Argillic Horizon: Alfisol, natric horizon, spodic horizon

brown earth

n
(Geological Science) an intrazonal soil of temperate humid regions typically developed under deciduous forest into a dark rich layer (mull): characteristic of much of southern and central England
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Pedons A-2, A-3, and A-4 had an argillic horizon and hence categorized under the order Alfisols [19].
The Mollic Kandiudalf (the soil classified above as a Lixisol) also highlights the difference between the ST argillic horizon and the clear or abrupt textural B horizon of the ASC.
Claypan soils are poorly drained because of a restrictive high-clay subsoil layer (argillic horizon).
Great Group--Argiudoll (This Mollisol also has an argillic horizon in the subsurface in addition to the mollic epipedon.
The soil has a thick argillic horizon from 0.13 m downwards and is classified as Kandihumults as per Soil Taxonomy (Soil Survey Staff 1999).
Argillic Horizon (Chapter 3)--The B horizon of a soil that contains more clay than the overlying A horizon due to illuviation.
Methods of determining soil loss that rely on topsoil thickness or depth to the top of either the clay maximum or argillic horizon underestimated [TABULAR DATA FOR TABLE 1 OMITTED] soil loss from erosion of a Mollisol and an Alfisol (Olson and Beavers 1987).
However, the eroded soils within the map units lacked a mollic epipedon and an argillic horizon and do not qualify as Argiudolls.
Pedological distinctions related to soil age (increased weathering, leaching, and argillic horizon development) had practically no effect on leaching risk.
Anderson JL, Bouma J (1973) Relationships between hydraulic conductivity and morphometric data of an argillic horizon. Soil Science Society of America Proceedings 37, 408-413.
2 to 23 mmol L-1 with depth) than surrounding soils when comparing similar soil horizons from the surface through their common argillic horizons (Fisher et al., 1996).
Clay mineralogy and chemistry of argillic horizons, fragipans, and paleosol B horizons of soils on a loess-thinning transect in southwestern Indiana, U.S.A.