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The effects of stand density on the growth and microclimate of young Douglas-fir stands

Creator:: Woodruff, David R.
Abstract:: My objectives were to investigate the correlation of height and diameter growth in young Douglas-fir (Pseudotsuga menziesii) plantations with stand density, and to determine the effects of stand density on the canopy boundary layer conductance (g[subscript]ac) and microclimate characteristics of young Douglas-fir plantations. I measured annual height (h) and diameter...
Resource Type:: Masters Thesis
Full Text:: Washington. Each site consisted of test plantations of eight- and twelve-year-old Douglas-fir in initial

Logging in the Douglas fir region

Creator:: Gibbons, William H. (William Henry), 1879-
Abstract:: To bring together in systematic and usable form the bulk of the information dealing with Douglas fir logging costs thus far acquired, so as to make it accessible, is the object of this publication.
Resource Type:: Technical Report
Full Text:: , Forester Washington, D. C. PROFESSIONAL PAPER November 14, 1918 LOGGING IN THE DOUGLAS FIR REGION. By

Salvage logging in the Douglas-fir region of Oregon and Washington

Creator:: Matson, Elmer E. and Grantham, John Bernard
Resource Type:: Technical Report

Height-related trends in structure and function of Douglas-fir foliage

Creator:: Woodruff, David R.
Abstract:: This dissertation investigated the impacts of tree height upon a range of physiological and structural characteristics of Douglas-fir foliage; relationships between structural and functional trends with height; and compensatory mechanisms that mitigate height-related growth constraints. Height-related trends in foliar physiological and anatomical characteristics were examined both within trees as well...
Resource Type:: Dissertation
Full Text:: presented on July 16, 2008. Title: Height-Related Trends in Structure and Function of Douglas-fir Foliage

Identifying candidate genes associated with cold adaptation in Douglas-fir using DNA microarrays

Creator:: Howe, Dana Kathryn
Abstract:: In forest trees from temperate and boreal regions, cold acclimation is an important adaptive trait that involves changes in gene expression and physiology. Genecological, quantitative genetic, and QTL studies have been used to study the genetics of cold acclimation in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), but the genes responsible for...
Resource Type:: Masters Thesis
Full Text:: cold adaptation in populations of Douglas-fir from Oregon and Washington. I used two populations of

Effect of plant date on subsequent seedling field performance

Creator:: Taylor, Michael Monroe
Abstract:: Douglas-fir (Psudotsuga menziesii (Mirb.) Franco) seedlings were outplanted on eight dates (every three weeks from mid-August 2005 through mid-January 2006). On each plant date, seedlings from a conventional dormancy (CONV) induction treatment, including moisture and nutrient stress, and a shortened daylength (SD) treatment were outplanted on three western Oregon sites...
Resource Type:: Masters Thesis
Full Text:: Douglas-fir and western larch seedlings in Eastern Washington. Of particular interest was the

Interference dynamics in mixed red alder/Douglas-fir forests

Creator:: D'Amato, Anthony W.
Abstract:: This study characterized the nature and dynamics of interference in mixed red alder (Alnus rubra Bong.)/Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) stands in the Pacific Northwest, USA. Long-term spatial and tree measurements from the Cascade Head (CH) and H.J. Andrews (HJA) Experimental Forests in western Oregon and Delezene Creek (DC), Washington...
Resource Type:: Masters Thesis
Full Text:: in Mixed Red Alder/Douglas-fir Forests Abstract approved: Signature redacted for privacy

A pioneer exotic tree search for the douglas fir region

Creator:: Silen, Roy R. and Olson, Donald L.
Abstract:: After three-quarters of a century of introduction of 152 conifer and broadleaf species, no promising candidate exotic was found for the Douglas-fir region. Growth curves spanning 50 years or longer are figured for many species. Firs, pines, larches, spruces, hemlocks, and cedars originating in northwestern North America had superior growth...
Resource Type:: Other
Full Text:: - record Douglas -fir tree from western Washington. All Arboretum species are compared in height with

Identifying site characteristics that explain variation in Douglas-fir site productivity and stem form

Creator:: Magalska, Lauren E.
Abstract:: Foresters care about site productivity and stem quality in Douglas-fir plantations for many reasons. The profitability of forest land and the economic returns on silvicultural investments are directly related to site productivity. Thus, understanding the relationships among Douglas-fir productivity, stem form and site characteristics is important economically. My objective was...
Resource Type:: Masters Thesis
Full Text:: variation in Douglas- fir productivity and stem form throughout western Oregon and Washington by using

Response of needle-litter decomposition and soil nitrogen mineralization to logging-debris manipulation and competing vegetation control in western Oregon and Washington

Creator:: Meehan, Nathan Andrew
Abstract:: Growing societal demand for forest products is pressuring managers to increase productivity from a finite land area, and it is expected that increased supply will come mostly from expansion of intensively managed stands. The USDA Forest Service and numerous collaborators created the Long-Term Soil Productivity (LTSP) network of research sites...
Resource Type:: Masters Thesis
Full Text:: and growth of Douglas-fir stands in western Washington and Oregon. 14 1.3 Objectives

ScholarsArchive@OSU

The effects of stand density on the growth and microclimate of young Douglas-fir stands

Logging in the Douglas fir region

Salvage logging in the Douglas-fir region of Oregon and Washington

Height-related trends in structure and function of Douglas-fir foliage

Identifying candidate genes associated with cold adaptation in Douglas-fir using DNA microarrays

Effect of plant date on subsequent seedling field performance

Interference dynamics in mixed red alder/Douglas-fir forests

A pioneer exotic tree search for the douglas fir region

Identifying site characteristics that explain variation in Douglas-fir site productivity and stem form

Response of needle-litter decomposition and soil nitrogen mineralization to logging-debris manipulation and competing vegetation control in western Oregon and Washington

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