Inceptisol and landscape BR
Soil profile: A representative soil profile of an Inceptisol from the Cerado physiographic region--a vast tropical savanna ecoregion of Brazil, particularly in the states of Goiás, Mato Grosso do Sul, Mato Grosso, Tocantins, Minas Gerais and the Federal District of Brazil. (Horizonation is by Brazil soil classification system.)
Landscape: Typical landscape and vegetation (eucalyptus plantation) associated with Inceptisols occurring on an interfluve in Brazil.
Inceptisols are a soil order in USDA soil taxonomy. They form quickly through alteration of parent material. They are more developed than Entisols. They have no accumulation of clays, iron oxide, aluminium oxide or organic matter. They have an ochric or umbric horizon and a cambic subsurface horizon. The central concept of Inceptisols is that of soils that are of cool to very warm, humid and subhumid regions and that have a cambic horizon and an ochric epipedon. The order of Inceptisols includes a wide variety of soils. In some areas Inceptisols are soils with minimal development, while in other areas they are soils with diagnostic horizons that merely fail the criteria of the other soil orders. Inceptisols have many kinds of diagnostic horizons and epipedons.
In the Brazil soil classification system, these Latossolos are highly weathered soils composed mostly of clay and weathering resistant sand particles. Clay silicates of low activity (kaolinite clays) or iron and aluminum oxide rich (haematite, goethite, gibbsite) are common. There are little noticeable horizonation differences. These are naturally very infertile soils, but, because of the ideal topography and physical conditions, some are being used for agricultural production. These soils do require fertilizers because of the ease of leaching of nutrients through the highly weathered soils.
For additional information about these soils, visit:
sites.google.com/site/soil350brazilsoilsla/soil-formation...
and...
For additional information about U.S. soil classification, visit:
www.nrcs.usda.gov/wps/portal/nrcs/main/soils/survey/class...
Inceptisol and landscape BR
Soil profile: A representative soil profile of an Inceptisol from the Cerado physiographic region--a vast tropical savanna ecoregion of Brazil, particularly in the states of Goiás, Mato Grosso do Sul, Mato Grosso, Tocantins, Minas Gerais and the Federal District of Brazil. (Horizonation is by Brazil soil classification system.)
Landscape: Typical landscape and vegetation (eucalyptus plantation) associated with Inceptisols occurring on an interfluve in Brazil.
Inceptisols are a soil order in USDA soil taxonomy. They form quickly through alteration of parent material. They are more developed than Entisols. They have no accumulation of clays, iron oxide, aluminium oxide or organic matter. They have an ochric or umbric horizon and a cambic subsurface horizon. The central concept of Inceptisols is that of soils that are of cool to very warm, humid and subhumid regions and that have a cambic horizon and an ochric epipedon. The order of Inceptisols includes a wide variety of soils. In some areas Inceptisols are soils with minimal development, while in other areas they are soils with diagnostic horizons that merely fail the criteria of the other soil orders. Inceptisols have many kinds of diagnostic horizons and epipedons.
In the Brazil soil classification system, these Latossolos are highly weathered soils composed mostly of clay and weathering resistant sand particles. Clay silicates of low activity (kaolinite clays) or iron and aluminum oxide rich (haematite, goethite, gibbsite) are common. There are little noticeable horizonation differences. These are naturally very infertile soils, but, because of the ideal topography and physical conditions, some are being used for agricultural production. These soils do require fertilizers because of the ease of leaching of nutrients through the highly weathered soils.
For additional information about these soils, visit:
sites.google.com/site/soil350brazilsoilsla/soil-formation...
and...
For additional information about U.S. soil classification, visit:
www.nrcs.usda.gov/wps/portal/nrcs/main/soils/survey/class...