Skip to Main Content
Matric potentialAuthor(s): Melvin T. Tyree
Source: Encyclopedia of Water Science. 615-617.
Publication Series: Scientific Journal (JRNL)
Station: Northeastern Research Station
PDF: View PDF (256.93 KB)
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.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationTyree, Melvin T. 2003. Matric potential. Encyclopedia of Water Science. 615-617.
- Acclimation of leaf hydraulic conductance and stomatal conductance of Pinus taeda (loblolly pine) to long-term growth in elevated CO2 (free-air CO2 enrichment) and N-fertilizationpce
- A solution thermodynamics definition of the fiber saturation point and the derivation of a wood-water phase (state) diagram
- Ecosystem evapotranspiration: challenges in measurements, estimates, and modeling
XML: View XML