Soil water potential

Definition (http://www.landfood.ubc.ca/soil200/components/soil_water.htm)

Usually the energy status of soil water in a particular location in the profile is compared to that of pure water at a standard pressure and temperature, unaffected by the soil and located at some reference elevation. The difference in energy levels between this pure water in the reference state and that of the soil water is called soil water potential (the term potential implies difference in energy status). (ubc.ca)

Preferred Units: N/A

Scope Note:
N/A

This term is used for the following terms: 
Suction pressure (soil)

Approved Date
17-Sep-2013

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