Index Catalog // ScholarsArchive@OSU

Creator:: Weiskittel, Aaron, Gould, Peter, and Temesgen, Hailemariam
Abstract:: The species self-thinning boundary line has been widely analyzed with a variety of statistical techniques. Most previous studies in the forestry literature have reported that the relationship does not differ across a range of stand and site factors, but these studies have primarily used statistical techniques that make model fitting...
Resource Type:: Article
Full Text:: : (207) 581-2875; aaron.weiskittel@umit.maine.edu. Peter J. Gould, US Forest Service, PNW Research

Creator:: Zhao, Junhui, Maguire, Douglas A., Mainwaring, Douglas B., Wehage, Jon, and Kanaskie, Alan
Abstract:: In coastal forests of the Pacific Northwest, young coniferous plantations typically contain a mixture of planted and natural Douglas-fir (Pseudotsuga menziesii) and western hemlock (Tsuga heterophylla). Swiss needle cast (SNC) disease inhibits the growth of Douglas-fir to varying degrees in these stands, depending on SNC severity. In addition to the...
Resource Type:: Article
Full Text:: model, it is generally advisable to use some 247 measure of lack of fit in combination with one or

Creator:: Gray, Andrew N., Zald, Harold S.J., Kern, Ruth A., and North, Malcolm
Abstract:: Fire suppression has significantly increased canopy cover, litter depth, and stem density in many western forests, altering microsite conditions that affect tree seedling establishment. We conducted studies in a mixed-conifer forest in the Sierra Nevada, California, to determine relationships between established understory trees and microsite quality, and to examine the...
Resource Type:: Article

Creator:: Ruzicka, Kenneth J., Jr., Puettmann, Klaus J., and Olson, Deanna H.
Abstract:: We examined the potential of using upslope density management to influence growth and drought tolerance of trees in untreated downslope riparian forests. Increment cores from Douglas-fir trees in three mature stands in western Oregon, USA, were collected and measured. Trees responded to an apparent edge effect up to 15 m...
Resource Type:: Article

Creator:: Progar, Robert A., Gillette, Nancy, Fettig, Christopher J., and Hrinkevich, Kathryn
Abstract:: Mountain pine beetle, Dendroctonus ponderosae Hopkins, is a primary agent of forest disturbance in western North America. Episodic outbreaks occur at the convergence of favorable forest age and size class structure and climate patterns. Recent outbreaks have exceeded the historic range of variability of D. ponderosae-caused tree mortality affecting ecosystem...
Resource Type:: Article

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