Modeling 9-Year Survival Of Oak Advance Regeneration Under Shelterwood Overstories

This article is part of a larger document. View the larger document here.

  • Authors: Spetich, Martin A.; Graney, David L.
  • Publication Year: 2004
  • Publication Series: Miscellaneous Publication
  • Source: Gen. Tech. Rep. SRS¨C71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 238-242

Abstract

Abstract Survival of white oak (Quercus alba L.), northern red oak (Q. rubra L.), and black oak (Q. velutina Lam.) on upland oak stands was modeled 9 years after shelterwood treatment. Stands represented a range of site quality, overstory stocking, and understory treatments. There were three levels of understory treatment and two levels of shelterwood treatment for a total of six overstory-understory treatment combinations. Understory treatment consisted of (1) removal of all competing woody stems < 1.6 inches diameter at breast height, (2) removal of this diameter range of stems but only those that were ¡Ý5 feet tall, and (3) no understory treatment. Overstory shelterwood treatments were 40 and 60 percent residual stocking. We used logistic regression to model survival of advance regeneration 9 years after understory and overstory treatments. Results were expressed as survival probabilities. Significant predictors of survival included initial seedling basal diameter, percent residual stocking of the shelterwood treatment, site index, and the number of terminal bud scale scars of the seedling prior to treatment.

  • Citation: Spetich, Martin A.; Graney, David L. 2004. Modeling 9-Year Survival Of Oak Advance Regeneration Under Shelterwood Overstories. Gen. Tech. Rep. SRS¨C71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 238-242
  • Posted Date: April 1, 1980
  • Modified Date: August 22, 2006
  • Print Publications Are No Longer Available

    In an ongoing effort to be fiscally responsible, the Southern Research Station (SRS) will no longer produce and distribute hard copies of our publications. Many SRS publications are available at cost via the Government Printing Office (GPO). Electronic versions of publications may be downloaded, printed, and distributed.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
    • To view this article, download the latest version of Adobe Acrobat Reader.