Index Catalog // ScholarsArchive@OSU

Early genetic selection for wood stiffness in juvenile Douglas-fir and western hemlock

Creator:: Urhan, Oguz S.
Abstract:: Wood modulus of elasticity (MOE), also known as wood stiffness, is one of the most important wood properties. Wood stiffness is a measure of the resistance to deflection, and is important because some products such as laminated veneer lumber, plywood, and dimension lumber require stiff and strong wood. Incorporating wood...
Resource Type:: Masters Thesis
Full Text:: Douglas fir and Western Hemlock. AN ABSTRACT OF THE THESIS OF Oguz S. Urhan for the degree of

Estimating spatial changes in acoustic velocity in felled Douglas-fir stems

Creator:: Dowding, Bodie
Abstract:: To compete with other building materials, the wood products industry must find a way to increase value and lower costs. Wood stiffness is important for most wood uses. Value can be increased and costs can be lowered by sorting logs for stiffness in the woods using acoustic devices mounted on...
Resource Type:: Masters Thesis
Full Text:: Douglas-fir Stems Abstract approved: Glen Murphy To compete with other building materials

Interactions Between Wild Bee Communities and Douglas-fir Beetle (Dendroctonus pseudotsugae) Populations in Douglas-fir (Pseudotsugae menziezii) Forests of the Intermountain West

Creator:: Foote, Gabriel G.
Abstract:: This work combines both applied and basic research regarding previously undescribed relationships between two ecologically and economically important insect groups in coniferous forests, bark beetles (Coleoptera: Curculionidae, Scolytinae) and wild bee (Hymenoptera: Apiformes) communities in Western North America. Across the continent, native bark beetle outbreaks are key drivers of structural...
Resource Type:: Masters Thesis
Full Text:: . Title: Interactions Between Wild Bee Communities and Douglas-fir Beetle (Dendroctonus pseudotsugae

Modeling air-drying of Douglas-fir and hybrid poplar biomass in Oregon

Creator:: Kim, Dong-Wook
Abstract:: Both transportation costs and market values of woody biomass are strongly linked to the amount of moisture in the woody biomass. Therefore, managing moisture in the woody biomass well can lead to significant advantages in the woody biomass energy business. In this study, two prediction models were developed to estimate...
Resource Type:: Masters Thesis
Full Text:: -Drying of Douglas-fir and Hybrid Poplar Biomass in Oregon Abstract approved

Using Acoustic Measurements and Inventory Data to Estimate Stiffness in Standing Douglas-Fir Trees

Creator:: Delgado Trejo, Jorge Luis
Abstract:: Total US lumber production in 2011 was 77.9 million cubic meters. Its primary use was for housing and construction. There is a growing concern that the structural properties for wood are being reduced as trees are harvested at much younger ages as the wood supply shifts from older to younger...
Resource Type:: Masters Thesis
Full Text:: Stiffness in Standing Douglas-Fir Trees. AN ABSTRACT OF THE THESIS OF Jorge Luis Delgado Trejo

Physiological Responses of Loblolly Pine and Douglas-fir Seedlings from Various Provenances to Timing and Frequency of Drought Stress

Creator:: Mosel, Jamie E.
Abstract:: Drought is expected to increase in many parts of the world and has been shown to affect tree physiology and growth, with seedlings being particularly vulnerable. Seedling drought responses are often species dependent, and even within species different populations may demonstrate a spectrum of responses to drought, from susceptibility to...
Resource Type:: Masters Thesis
Full Text:: December 12, 2016. Title: Physiological Responses of Loblolly pine and Douglas-fir Seedlings from

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:: of Earlywood and Latewood in Douglas-fir at the Salal Fields Study Site. Abstract

The combined effects of vegetation control and seedling size class on Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedling productivity on a site in Oregon

Creator:: Lefebvre, Robert F.
Abstract:: Controlling competing vegetation with the application of herbicides and increased seedling size at planting has been shown to increase seedling survival and growth. These two important reforestation tools have often been studied independently of each other, limiting comparisons that can be made between them. This study utilized a factorial treatment...
Resource Type:: Masters Thesis
Full Text:: Class on Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) Seedling Productivity on a Site in Oregon

Evaluating High Release Rate MCH (3-methylcyclohex-2-en-1-one) Treatments for Preventing Dendroctonus pseudotsugae (Coleoptera: Curculionidae) Infestations

Creator:: Brookes, Harrison M.
Abstract:: The Douglas-fir beetle (Dendroctonus pseudotsugae Hopkins) can kill large numbers of Douglas-fir trees (Pseudotsuga menziesii (Mirbel) Franco) across a landscape during periods of population outbreaks. High-value individual trees and small stands can be protected from Douglas-fir beetle infestation during outbreaks by applying the anti-aggregation pheromone, MCH (3-methylcyclohex-2-en-1-one). MCH treatments are...
Resource Type:: Masters Thesis
Full Text:: . Ross The Douglas-fir beetle (Dendroctonus pseudotsugae Hopkins) can kill large numbers of

Douglas-fir (Psuedotsuga menziesii) biomass and nutrient removal under varying harvest scenarios involving co-production of timber and feedstock for liquid biofuels

Creator:: Coons, Kristin L.
Abstract:: In this study an improved model of biomass and nutrient estimation of coastal Douglas-fir (Psuedotsuga menziesii) in the Pacific Northwest has been developed across a wide range of stand management regimes. This study quantifies and defines the type and intensity of biomass harvest and associated removal for actively managed stands...
Resource Type:: Masters Thesis
Full Text:: Douglas–fir (Psuedotsuga menziesii) Biomass and Nutrient

ScholarsArchive@OSU

Early genetic selection for wood stiffness in juvenile Douglas-fir and western hemlock

Estimating spatial changes in acoustic velocity in felled Douglas-fir stems

Interactions Between Wild Bee Communities and Douglas-fir Beetle (Dendroctonus pseudotsugae) Populations in Douglas-fir (Pseudotsugae menziezii) Forests of the Intermountain West

Modeling air-drying of Douglas-fir and hybrid poplar biomass in Oregon

Using Acoustic Measurements and Inventory Data to Estimate Stiffness in Standing Douglas-Fir Trees

Physiological Responses of Loblolly Pine and Douglas-fir Seedlings from Various Provenances to Timing and Frequency of Drought Stress

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

The combined effects of vegetation control and seedling size class on Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedling productivity on a site in Oregon

Evaluating High Release Rate MCH (3-methylcyclohex-2-en-1-one) Treatments for Preventing Dendroctonus pseudotsugae (Coleoptera: Curculionidae) Infestations

Douglas-fir (Psuedotsuga menziesii) biomass and nutrient removal under varying harvest scenarios involving co-production of timber and feedstock for liquid biofuels

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