You are here: Home
/ Publication Information
Title: Tree-ring model interprets growth decline in natural stands of loblolly pine in the southeastern United States
Author: Zahner, Robert; Saucier, Joseph R.; Myers, Richard K.;
Source: Can. J. For. Res., Vol. 19: 612-621
Publication Series: Miscellaneous Publication
Description: Annual ring widths and ring areas from 131 even-aged, natural, well-stocked stands of loblolly pine (Pinus taeda L.) in the Piedmont region were analyzed to reveal possible causes of a previously reported decline in radial growth. A linear aggregate model was used to separate independent factors that are known to contribute to radial growth variation in this species. Stand, site, and climatic conditions were reconstructed for each stand for the 36-year period 1949-1984 from previous inventories and from weather records at appropriately located stations. Within each of six 5-year age-classes, the model identified declines in both ring width and ring area associated with stand density, climate changes, and the passage of time. Regional climate first ameliorated this decline as pine stands passed from droughty conditions early in the 36-year period to a favorable climate during the middle of the period, and the decline accelerated later with the return of dry conditions toward the end of the period. The tree-ring model simulates a decline in radial increment in trees in natural pine stands between the ages of 20 &d 45 years in the Piedmont which has averaged 1% per year since 1950. Part of the downward trend was attributed to increased competition, part to regional drought, and-a considerable part to unidentified factors, possibly regional atmospheric deposition.
- 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.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
XML: View XML
Zahner, Robert; Saucier, Joseph R.; Myers, Richard K. 1988. Tree-ring model interprets growth decline in natural stands of loblolly pine in the southeastern United States. Can. J. For. Res., Vol. 19: 612-621
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility