(especially of soils) having no zonal organization or structure.
‘The division into zonal, intrazonal, and azonal soils was the basis for the soil classification used in the USA until 1960.’
‘Latitudinal zonal divisions can be seen on plains, and azonal divisions in mountainous areas.’
‘We will discuss evolutionary aspects of the growth-form characters in this azonal vegetation.’
‘There are also azonal saline wetlands, wetlands, gypsum and limestone containing soil types in low altitude zones.’
‘The second category of soils in the Kananaskis region, azonal soils, are zonal soils that have been changed as a result of variations in topography, such as erosion, moisture status, and depth to bedrock.’
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