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): E.T. Choong; F.O. Tesora
    Date: 1974
    Source: Wood and Fiber, Vol. 6(1): 91-101
    Publication Series: Scientific Journal (JRNL)
    PDF: Download Publication  (1.56 MB)


    Gas permeability of hardwoods growing on southern pine sites is significantly affected by moisture content in the longitudinal direction. The ratio of permeability in the transverse to longitudinal directions is from 12,000:1 for post oak to over 1,000,000:1 for other oaks, but it is not affected by moisture. Although variation in longitudinal permeability varies greatly between and among species, for most species there was no height effect. A significant difference was detected between sapwood and corewood only in the longitudinal direction. Gas permeability tended to be somewhat less than liquid permeability.

    Publication Notes

    • You may send email to 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.


    Choong, E.T.; Tesora, F.O. 1974. permeability of twenty-two small diameter hardwoods growing on southern pine sites. Wood and Fiber, Vol. 6(1): 91-101


    Gas permeability, liquid permeability, longitudinal permeability, transverse permeability, specific gravity

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page