Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): J.M. Vose; G.J. Harvey; K.J. Elliott; B.D. Clinton
    Date: 2003
    Source: Phytoremediation: Transformation and Control of Contaminants. McCutcheon, Steven C. and Schnoor, Jerald L. eds. p. 263-282
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (488 KB)

    Description

    Transpiration is a key process in the application of phytoremediation to soil or groundwater pollutants. To be successful, vegetation must transpire enough water from the soil or groundwater to control or take up the contaminant. Transpiration is driven by a combination of abiotic (climate, soil water availability, and groundwater depth) and biotic (leaf area, stomatal functions, root amount and distribution, and hydraulic characteristics) that need to be evaluated when considering appropriate site and species combinations. The protocols are not trivial, but transpiration can be measured at a variety of scales using techniques such as direct measurements of sap flow on individual trees, eddy flux gradient analyses, or gauged watersheds. Alternatively, models can be used to estimate transpiration, but these usually require on-site calibration or parameterization to produce accurate predictions. Case study analyses across a range of site conditions and species indicate a maximum transpiration capacity of approximately 7.5 x 106 liters of water per hectare per year (8 x IO5 gallons of water per acre per year), with a range of 1.5 x 106 to 7.5 x 106 liters per hectare per year (1.6 x 105 to 8 x 105 gallons per acre per year). Variation among sites is related to species, tree size, and stocking (i.e., vegetation density) differences. Application of a physiologically based and site-specific parameterized model suggests reasonable agreement between measured and predicted transpiration estimates for the Air Force Plant 4 site in central Texas.

    Publication Notes

    • You may send email to pubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • 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.

    Citation

    Vose, J.M.; Harvey, G.J.; Elliott, K.J.; Clinton, B.D. 2003. Measuring and Modeling Tree Stand Level Transpiration. Phytoremediation: Transformation and Control of Contaminants. McCutcheon, Steven C. and Schnoor, Jerald L. eds. p. 263-282

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/6221