Lessivage, or argilluviation, refers to the movement of fine clay minerals from the upper part of a soil to the lower part of a soil, via the downward movement of water through the soil matrix. Lessivage is the primary mechanism in the formation of the diagnostic, clay-enriched argic, or Bt horizon (Canadian System of Soil Classification) of Luvisolic soils.
Lessivage, or argilluviation, refers to the movement of fine clay minerals from the upper part of a soil to the lower part of a soil, via the downward movement of water through the soil matrix. Lessivage is the primary mechanism in the formation of the diagnostic, clay-enriched argic, or Bt horizon (Canadian System of Soil Classification) of Luvisolic soils.
Source: Wikipedia "Lessivage" · CC BY-SA 4.0
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