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Matric potentialAuthor(s): Melvin T. Tyree
Source: Encyclopedia of Water Science. 615-617.
Publication Series: Scientific Journal (JRNL)
Station: Northeastern Research Station
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DescriptionMatric 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. , 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.  for soils and Ref.  for plant tissue.
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CitationTyree, Melvin T. 2003. Matric potential. Encyclopedia of Water Science. 615-617.
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