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Title: Matric potential

Author: Tyree, Melvin T.

Year: 2003

Publication: Encyclopedia of Water Science. 615-617.

Abstract: Matric potential, r, is a component of water potential, ?, but has different meanings in plant physiology vs. soil science. A rigorous definition of r requires a reference to principles of thermodynamics (both classical and irreversible thermodynamics). A rigorous treatment is beyond the scope of this brief overview. Readers interested in a detailed definition are advised to read the article of Ref. [5], but should be prepared to wade through 227 equations in a terse, 25-page article requiring a firm grasp of thermodynamics. Less detailed treatments can be found in Ref. [6] for soils and Ref. [7] for plant tissue.

Last Modified: 11/21/2008

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