Index Catalog // ScholarsArchive@OSU

Taper, crown, and volume responses of a coastal Oregon Douglas-fir stand to sulfur treatments for control of Swiss needle cast

Creator:: Younger, Nicole L.
Abstract:: For nearly two decades, foresters in the Oregon Coast Range have been witnessing a substantial decease in Douglas-fir (Pseudotsuga menziesii var. menziesii [Mirb.] Franco.) vigor and growth, caused by Swiss needle cast (Phaeocryptopus gaeumannii). Currently, no solutions are in sight but aerially-applied sulfur may alleviate Swiss needle cast and its...
Resource Type:: Masters Thesis
Full Text:: Taper, Crown, and Volume Responses of a Coastal Oregon Douglas-fir Stand to Sulfur Treatments for

Influence of light on the growth of advance regeneration in the understory of Douglas-fir dominated forests in western Oregon

Creator:: Deisenhofer, Florian
Abstract:: The growth potential of Douglas-fir, grand fir and western hemlock advance regeneration in the forest understory of Douglas-fir-dominated forests was investigated to detennine the feasibility of selection cutting systems in northwest Oregon. This study compared the growth of Douglas-fir, grand fir and western hemlock advance regeneration along a light gradient...
Resource Type:: Masters Thesis
Full Text:: Light on the Growth of Advance Regeneration in the Understory of Douglas-fir Dominated Forests in

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

Performance of artificially shaded container-grown Douglas-fir seedlings on skeletal soils

Creator:: Hobbs, Stephen D. and Oregon State University. Forest Research Laboratory
Abstract:: One-year-old container-grown Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] seedlings were outplanted on north, east, south, and west aspects on steep, skeletal Xerochrepts in southwest Oregon. After 2 years, survival rates were highest on north and south aspects, but biomass production (dry weight) was greatest on the west aspect. Shadecards, used to...
Resource Type:: Technical Report
Full Text:: for Douglas-fir on skele- tal soils in southwest Oregon. Pages 92-96 in Proceedings, Reforestation of

Glyphosate and hexazinone mixtures : effects on weeds and Douglas-fir transplants

Creator:: White, Diane E., Newton, Michael, 1932-, and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: AND HEXAZINONE MIXTURES: EFFECTS ON WEEDS AND DOUGLAS-FIR TRANSPLANTS DIANE E. WHITE MICHAEL NEWTON

Effects of thinning on forest-floor vertebrates and analysis of habitat associations along ecological gradients in Oregon coastal Douglas-fir forests

Creator:: Suzuki, Nobuya
Abstract:: Thinning has the potential to increase structural diversity of managed forests for wildlife. During 1994-1996, I conducted experimental and observational studies using pitfall trapping to assess short-term and potential long-term effects of thinning on abundance and reproduction of forest-floor vertebrates in Douglas-fir (Pseudotsuga menzeisii) forests of the Oregon Coast Range....
Resource Type:: Dissertation

Impact of Climate and Disturbance on the Formation of Earlywood and Latewood in Douglas-fir at the Salal Fields Study Site

Creator:: Gourley, Derek M. F.
Abstract:: Wood density is controlled to a large extent by the relative widths of earlywood and latewood in the stem, but the mechanisms controlling these amounts are poorly understood in coastal Douglas-fir. To understand the role of climatic factors, one hundred and thirty-six increment cores were collected and measured from the...
Resource Type:: Masters Thesis
Full Text:: Impact of Climate and Disturbance on the Formation of Earlywood and Latewood in Douglas-fir at the Salal

Response of arthropods to different intensities of thinning in Oregon

Creator:: Yi, Hoonbok
Abstract:: The process of silvicultural thinning has become very controversial recently with regards to fire protection and management for old-growth conditions and biodiversity. Therefore, an unthinned control stand and 3 different thinning intensities were examined for their effects on the abundance, species richness, and diversity of arthropods in thinning treatments of...
Resource Type:: Dissertation

Silvicultural Treatment Impacts on Understory Trees and 20-Year Understory Vegetation Dynamics in Mature Douglas-Fir Forests

Creator:: Priebe, Jim E.
Abstract:: Policy regarding the management of public forests has undergone a drastic shift over the past couple of decades due to the loss old-growth forests in the Pacific Northwest (PNW) of the United States. For much of the 20th century, forest management on public lands emphasized timber production through the use...
Resource Type:: Masters Thesis
Full Text:: .......................................................................................................... 9 2. MANUSCRIPT 1: EFFECT OF SPECIES, TREE SIZE, AND OVERSTORY ENVIRONMENT ON ICE STORM DAMAGE

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:: practices on growth and productivity of Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) as well as the

ScholarsArchive@OSU

Taper, crown, and volume responses of a coastal Oregon Douglas-fir stand to sulfur treatments for control of Swiss needle cast

Influence of light on the growth of advance regeneration in the understory of Douglas-fir dominated forests in western Oregon

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

Performance of artificially shaded container-grown Douglas-fir seedlings on skeletal soils

Glyphosate and hexazinone mixtures : effects on weeds and Douglas-fir transplants

Effects of thinning on forest-floor vertebrates and analysis of habitat associations along ecological gradients in Oregon coastal Douglas-fir forests

Impact of Climate and Disturbance on the Formation of Earlywood and Latewood in Douglas-fir at the Salal Fields Study Site

Response of arthropods to different intensities of thinning in Oregon

Silvicultural Treatment Impacts on Understory Trees and 20-Year Understory Vegetation Dynamics in Mature Douglas-Fir Forests

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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