Definition of alfisol in US English:



Soil Science
  • A soil of an order comprising leached basic or slightly acid soils with a clay-enriched B horizon (subsoil).

    • ‘Soil nitrogen transformations and movement is simulated by other modules in the APSIM framework for two soil types, an alfisol and a vertisol.’
    • ‘The series consists of very deep, well drained, fine silty alfisol formed in loess.’
    • ‘In order to study the origins of alfisols and mollisols, Mella examined the mineralogical and chemical properties of the soils, as well as those of the insoluble residue of the coral rocks.’
    • ‘The soil is an alfisol (brown soil) above Palaeozoic strata.’
    • ‘The leaching of two pesticides (pendimethalin and glyphosate) through macropores in the unsaturated zone of a Danish alfisol was investigated in the laboratory.’


1960s: from the arbitrary element Alfi- + -sol.