Just above the water table, in the aeration zone, is capillary water that moves upward from the water table by capillary action. This water can move slowly and in any direction. While most plants rely upon moisture from precipitation that is present in the unsaturated zone, their roots may also tap into capillary water or into the underlying saturated zone.
Water held as a film around soil particles and in tiny spaces between particles. Surface tension is the adhesive force that holds capillary water in the soil.
Water held in soil pores by capillary action.
Related Topics: [ drainage] Water held by surface tension in the small spaces (capillary spaces) around soil particles.
Water that is left in the soil, along with hygroscopic moisture and water vapor, after the gravitational water has drained off. Capillary water is held by surface tension as a film of moisture on the surface of soil particles and peds, and as minute bodies of water filling part of the pore space between particles.
The water that fills the micropores of the soil and is held to soil particles with a force between 0.3 and 31 bars of suction. Much of this water (that portion held to particles with less than 15 bars of suction) is readily available to plant roots. carbonaceous Rich in carbon.
Water that moves horizontally and vertically in soils by the process of capillary action. This water is available for plant use.
Water held in the smaller pores of a soil, generally at tensions greater than 60 cm of water.
Water occupying small spaces in the soil and held to soil particles by surface tension of the water molecules for each other and for the soil particles.