hygroscopic coefficient

hygroscopic coefficient

[¦hī·grə¦skäp·ik ‚kō·i′fish·ənt]
(hydrology)
The percentage of water that a soil will absorb and hold in equilibrium in a saturated atmosphere.
References in periodicals archive ?
Descriptive terms of water availability are: saturation, field capacity, wilting point, and hygroscopic coefficient.
In fact, the strength of the soil-water potential is so great that if oven-dry soil is exposed to air, it will bind water vapor from the air until the soil moistens to the hygroscopic coefficient.
When the last water that can be removed by plants or evaporation is gone, the hygroscopic coefficient is reached.