Aeration zone: The zone immediately below the land surface where the pores contain both water and air, but are not totally saturated with water. Plant roots can capture the moisture passing through this zone, but it cannot provide water for wells.
aeration zone A portion of the lithosphere in which the functional interstices of permeable rock or earth are not filled with water under hydrostatic pressure.
Aeration Zone
The unsaturated zone just above the water table is the aeration zone.
Aeration ...
 See also: Standards, Condition, Wastewater treatment, Soil, Runoff
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