Hapludalf PL
A Typic Hapludalf from south-west Poland--lower Silesia region and the Sudetes Mountains formed in loess. (Photo provided by Cezary Kabala, Institute of Soil Science, University of Environmental and Life Sciences, Wroclaw, Poland.)
Hapludalfs are the Udalfs that do not have a glossic, kandic, or natric horizon or a fragipan within 100 cm of the mineral soil surface. They do not have very dark red colors throughout the argillic horizon. The base of the argillic horizon is normally less than 150 cm below the soil surface and, in many areas, is less than 100 cm below the surface. In an undisturbed soil, there generally is a thin, very dark brown A horizon, 5 to 10 cm thick, over a lighter colored brownish eluvial horizon. The eluvial horizon grades into a finer textured argillic horizon, generally at a depth of about 30 to 45 cm in loamy materials. Because the Hapludalfs have been cultivated extensively, many of those on slopes have lost their eluvial horizons. These soils formed principally in late-Pleistocene deposits or on a surface of comparable age. They are extensive soils in the Northeastern States, excluding New England, and in Europe, excluding most of Scandinavia. The vegetation on Hapludalfs in the United States was a deciduous broadleaf forest, but the soils are now mostly farmed. Temperature regimes are mesic or thermic.
These soils are classified as Albic Lamellic Luvisols (Ochric, Siltic, Bathycalcic) by the World Reference Base (WRB).
For more information about this soil, visit:
karnet.up.wroc.pl/~kabala/Plowe.html
For more information on the World Reference Base soil classification system, visit:
www.fao.org/3/i3794en/I3794en.pdf
For additional information about the US Soil Taxonomy soil classification system, visit:
www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/cla...
Hapludalf PL
A Typic Hapludalf from south-west Poland--lower Silesia region and the Sudetes Mountains formed in loess. (Photo provided by Cezary Kabala, Institute of Soil Science, University of Environmental and Life Sciences, Wroclaw, Poland.)
Hapludalfs are the Udalfs that do not have a glossic, kandic, or natric horizon or a fragipan within 100 cm of the mineral soil surface. They do not have very dark red colors throughout the argillic horizon. The base of the argillic horizon is normally less than 150 cm below the soil surface and, in many areas, is less than 100 cm below the surface. In an undisturbed soil, there generally is a thin, very dark brown A horizon, 5 to 10 cm thick, over a lighter colored brownish eluvial horizon. The eluvial horizon grades into a finer textured argillic horizon, generally at a depth of about 30 to 45 cm in loamy materials. Because the Hapludalfs have been cultivated extensively, many of those on slopes have lost their eluvial horizons. These soils formed principally in late-Pleistocene deposits or on a surface of comparable age. They are extensive soils in the Northeastern States, excluding New England, and in Europe, excluding most of Scandinavia. The vegetation on Hapludalfs in the United States was a deciduous broadleaf forest, but the soils are now mostly farmed. Temperature regimes are mesic or thermic.
These soils are classified as Albic Lamellic Luvisols (Ochric, Siltic, Bathycalcic) by the World Reference Base (WRB).
For more information about this soil, visit:
karnet.up.wroc.pl/~kabala/Plowe.html
For more information on the World Reference Base soil classification system, visit:
www.fao.org/3/i3794en/I3794en.pdf
For additional information about the US Soil Taxonomy soil classification system, visit:
www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/cla...