Skip to Main Content
Effects of a western spruce budworm outbreak on private lands in eastern Oregon, 1980-1994.Author(s): David L. Azuma; David L. Overhulser
Source: Western Journal of Applied Forestry. 23(1): 19-25
Publication Series: Scientific Journal (JRNL)
PDF: View PDF (1.25 MB)
DescriptionForest Inventory and Analysis data from three inventory periods were used to examine the effects of a western spruce budworm outbreak on private lands in eastern Oregon. Growth was negatively related to defoliation with differences between crown ratio and species. The mortality and salvage harvesting caused changes in stand structure on private lands. Although many stands showed a decrease in basal area, there was no detectable decrease in host species as a percentage of basal area. The combined effect of mortality, harvest, and loss in predicted growth may be as much as 30 percent of the initial standing volume.
- 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.)
- 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.
CitationAzuma, David L.; Overhulser, David L. 2008. Effects of a western spruce budworm outbreak on private lands in eastern Oregon, 1980-1994. Western Journal of Applied Forestry. 23(1): 19-25
KeywordsForest inventory, defoliation, growth effects, stand structure, eastern Oregon
- Timber resource statistics for eastern Oregon, 1999.
- Growth of loblolly pine stands after the first five years of uneven-aged silviculture using single-tree selection
- Timber resource statistics for western Oregon, 1997.
XML: View XML