Rudge soil series GB
A representative soil profile of the Rudge series (Arenic Chromic Endostagnic Luvisols) in England. (Cranfield University 2021. The Soils Guide. Available: www.landis.org.uk. Cranfield University, UK.)
Soils classified and described by the World Reference Base for England and Wales:
Luvisols have a higher clay content in the subsoil than in the topsoil, as a result of pedogenetic processes (especially clay migration) leading to an argic subsoil horizon. Luvisols have high-activity clays throughout the argic horizon and a high base saturation in the 50–100 cm depth. Many Luvisols are known as Texturally-differentiated soils and part of metamorphic soils (Russia), Sols lessivés (France), Parabraunerden (Germany), Chromosols (Australia) and Luvissolos (Brazil). In the United States of America, they were formerly named Grey-brown podzolic soils and belong now to the Alfisols with high-activity clays.
Endostagnic soil materials develop stagnic properties (from Latin stagnare, to stagnate) if they are, at least temporarily, saturated with surface water (or were saturated in the past, if now drained) for a period long enough that allows reducing conditions to occur (this may range from a few days in the tropics to a few weeks in other areas).
Endo- (from Greek endon, inside): the characteristic is present in the major part (or half or more of the part) between 50 and 100 cm from the (mineral) soil surface.
Chromic--having between 25 and 150 cm of the soil surface a layer, ≥ 30 cm thick, that has, in ≥ 90% of its exposed area, a Munsell colour hue redder than 7.5YR and a chroma of > 4, both moist (2: except Epi-).
Arenic--having a texture class of sand or loamy sand in a layer ≥ 30 cm thick, within ≤ 100 cm of the mineral soil surface or in the major part between the mineral soil surface and continuous rock, technic hard material or a cemented or indurated layer starting < 60 cm from the mineral soil surface starting < 60 cm from the mineral soil surface (2; no subqualifier if continuous rock or technic hard material starts < 60 cm from the mineral soil surface).
Rudge soils are mapped as a minor component with Newport Associations:
www.landis.org.uk/services/soilsguide/mapunit.cfm?mu=5510...
For more information on the World Reference Base soil classification system, visit:
www.fao.org/3/i3794en/I3794en.pdf
Rudge soil series GB
A representative soil profile of the Rudge series (Arenic Chromic Endostagnic Luvisols) in England. (Cranfield University 2021. The Soils Guide. Available: www.landis.org.uk. Cranfield University, UK.)
Soils classified and described by the World Reference Base for England and Wales:
Luvisols have a higher clay content in the subsoil than in the topsoil, as a result of pedogenetic processes (especially clay migration) leading to an argic subsoil horizon. Luvisols have high-activity clays throughout the argic horizon and a high base saturation in the 50–100 cm depth. Many Luvisols are known as Texturally-differentiated soils and part of metamorphic soils (Russia), Sols lessivés (France), Parabraunerden (Germany), Chromosols (Australia) and Luvissolos (Brazil). In the United States of America, they were formerly named Grey-brown podzolic soils and belong now to the Alfisols with high-activity clays.
Endostagnic soil materials develop stagnic properties (from Latin stagnare, to stagnate) if they are, at least temporarily, saturated with surface water (or were saturated in the past, if now drained) for a period long enough that allows reducing conditions to occur (this may range from a few days in the tropics to a few weeks in other areas).
Endo- (from Greek endon, inside): the characteristic is present in the major part (or half or more of the part) between 50 and 100 cm from the (mineral) soil surface.
Chromic--having between 25 and 150 cm of the soil surface a layer, ≥ 30 cm thick, that has, in ≥ 90% of its exposed area, a Munsell colour hue redder than 7.5YR and a chroma of > 4, both moist (2: except Epi-).
Arenic--having a texture class of sand or loamy sand in a layer ≥ 30 cm thick, within ≤ 100 cm of the mineral soil surface or in the major part between the mineral soil surface and continuous rock, technic hard material or a cemented or indurated layer starting < 60 cm from the mineral soil surface starting < 60 cm from the mineral soil surface (2; no subqualifier if continuous rock or technic hard material starts < 60 cm from the mineral soil surface).
Rudge soils are mapped as a minor component with Newport Associations:
www.landis.org.uk/services/soilsguide/mapunit.cfm?mu=5510...
For more information on the World Reference Base soil classification system, visit:
www.fao.org/3/i3794en/I3794en.pdf