argic horizon Quick reference
A Dictionary of Geology and Earth Sciences (5 ed.)
... horizon In the World Reference Base for Soil Resources , a soil horizon showing signs of clay...
argic horizon Quick reference
A Dictionary of Plant Sciences (4 ed.)
... horizon ( argillic horizon ) A subsurface soil horizon, at least one-tenth the thickness of the overlying horizon, that is identified by the illuvial ( see illuviation ) accumulation of silicate clays . The amount of clay necessary is defined in comparison with the quantity in the overlying eluvial ( see eluviation ) horizon, but it is at least 20 per cent more. Cutans may be used to identify an argic horizon. The name is from the Latin argilla meaning ‘white...
argic horizon Quick reference
A Dictionary of Ecology (5 ed.)
... horizon ( argillic horizon ) A subsurface soil horizon , at least one-tenth the thickness of the overlying horizon, that is identified by the illuvial ( see illuviation ) accumulation of silicate clays . The amount of clay necessary is defined in comparison with the quantity in the overlying eluvial ( see eluviation ) horizon, but it is at least 20 per cent more. Cutans may be used to identify an argic horizon. The name is from the Latin argilla , meaning white...
argic horizon
argic horizon
Albeluvisols
Acrisols
Luvisols
natric horizon
Alisols
Lixisols
oxisol
Ultisols
Alfisols
luvisols Quick reference
A Dictionary of Geology and Earth Sciences (5 ed.)
...A reference soil group in the World Reference Base for Soil Resources classification. Luvisols have an argic B horizon ( see argic horizon ) with a cation-exchange capacity of more than 24 cmol c /kg, with illuvial ( see illuviation ) accumulations of clay...
acrisols Quick reference
A Dictionary of Geology and Earth Sciences (5 ed.)
...A reference soil group in the World Reference Base for Soil Resources classification scheme used by the FAO . Acrisols are acid soils with an argic B horizon ( see argic horizon ) having a cation-exchange capacity of less than 24 cmol c...
albeluvisols Quick reference
A Dictionary of Geology and Earth Sciences (5 ed.)
...A reference soil group in the World Reference Base for Soil Resources . Albeluvisols have an argic B horizon ( see argic horizon ) with an irregular upper boundary (a condition sometimes known as...
alisols Quick reference
A Dictionary of Geology and Earth Sciences (5 ed.)
...A reference soil group in the World Reference Base for Soil Resources used by the FAO . Alisols have an argic B horizon ( see argic horizon ) with a cation-exchange capacity of more than 24 cmol c /kg clay and a base saturation of less than 50% within 100 cm of the soil surface. Alisols have a high concentration of...
albeluvisols Quick reference
A Dictionary of Plant Sciences (4 ed.)
...Soils that have an argic horizon with an irregular upper boundary. Albeluvisols are a reference soil group in the World Reference Base for Soil...
acrisols Quick reference
A Dictionary of Plant Sciences (4 ed.)
...Acid soils that have an argic horizon with a cation exchange capacity lower than 24 cmolc/kg. Acrisols are a reference soil group in the World Reference Base for Soil...
