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Filtering by: Creator Oregon State Agricultural College. Engineering Experiment Station Remove constraint Creator: Oregon State Agricultural College. Engineering Experiment Station Degree Field Forest Science Remove constraint Degree Field: Forest Science Degree Level Doctoral Remove constraint Degree Level: Doctoral

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Stability of reporter gene expression and RNAi in transgenic poplars over multiple years in the field under vegetative propagation

Creator:

Li, Jingyi

Abstract:

Stable expression of transgenes is required for commercial uses of genetically engineered trees. To better understand the stability of transgene expression under field conditions, we studied transgene expression and RNA interference (RNAi)-induced transgene suppression in 2,480 transgenic poplars (460 transgene insertion events) over three years. Stability of expression was assessed...

Resource Type:

Dissertation

Full Text:

Vegetative Propagation by Jingyi Li A DISSERTATION submitted to Oregon State
Functional decreases in hydraulic and mechanical properties of field-grown transgenic poplar trees caused by modification of the lignin synthesis pathway through downregulation of the 4-coumarate:coenzyme A ligase gene

Creator:

Voelker, Steven L.

Abstract:

Society uses massive quantities of wood fiber in production of paper, and demand for fiber is projected to increase further as production of biofuels from fermentation of plant cellulosic materials increases. Because these end uses generally require the costly step of removing of lignin, wood with reduced or more easily...

Resource Type:

Dissertation

Full Text:

. Voelker A DISSERTATION submitted to Oregon State University in partial
A stand management strategy for young western hemlock-Sitka spruce forests

Creator:

Kellogg, L. D. (Loren D.)

Abstract:

Western hemlock-Sitka spruce forests, where prior precommercial thinning has occurred, constitute one of the most productive young-growth management types along the Pacific Coast from Oregon to southeast Alaska. These stands are ready for a first commercial thinning entry, however, the costs and benefits of such entries and resulting impacts at...

Resource Type:

Dissertation
The timber harvesting behavior of family forest owners

Creator:

Butler, Brett J.

Abstract:

To increase our understanding of the timber harvesting behavior of family forest owners, I developed theoretical and empirical timber harvesting models for family forest owners in the southeastern United States. An individual-choice model was the basis for the models. Family forest owners were modeled as utility-maximizers who made harvesting decisions...

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Dissertation

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Brett J. Butler A DISSERTATION submitted to Oregon State University in partial fufi1lment of the
The influence of canopy structure and epiphytes on the hydrology of Douglas-fir forests

Creator:

Pypker, Thomas G.

Abstract:

Canopy structure has a significant impact on the canopy hydrology of Douglas-fir forests in the Pacific Northwest (PNW). Whole canopy rainfall interception was measured for young Douglas-fir forest and compared to an old-growth Douglas-fir forest. The old-growth forest had significantly greater canopy water storage capacity (5) and direct throughfall fraction...

Resource Type:

Dissertation

Full Text:

DISSERTATION submitted to Oregon State University in partial fulfillment of the requirements for the
Inter-relationships of vegetation, hydrology and micro-climate in a young, Douglas-fir forest

Creator:

Barnard, Holly Rene

Abstract:

The links between forests, streamflow, and climate are poorly understood. Despite hundreds of studies over the past 60 years, fundamental questions of forests' effects on the hydrologic cycle remain unanswered. The hydrological cycle involves mutually-dependent biological and physical processes that operate at multiple scales of time and space, and this...

Resource Type:

Dissertation

Full Text:

Research Program (DEB 08-23380), US Forest Service Pacific Northwest Research Station, and Oregon State
Independent effects of habitat loss and fragmentation on pollination : tropical forest fragmentation alters hummingbird movements and pollination dynamics

Creator:

Hadley, Adam S.

Abstract:

A growing body of work reveals that animal-mediated pollination is negatively affected by anthropogenic disturbance. Landscape-scale disturbance results in two often inter-related processes: (1) habitat loss, and (2) disruptions of habitat configuration (i.e. fragmentation). Understanding the relative effects of such processes is critical in designing effective management strategies to limit...

Resource Type:

Dissertation

Full Text:

Oregon State University in partial fulfillment of the requirements for the degree of
Patterns of tree establishment and vegetation composition in relation to climate and topography of a subalpine meadow landscape, Jefferson Park, Oregon, USA

Creator:

Zald, Harold S. J.

Abstract:

The forest alpine tundra ecotone (FTE, also known as alpine treeline or subalpine parkland), is a conspicuous feature of mountain landscapes throughout the world. Climate change-driven increases in temperature are believed to result in FTE movement and tree invasion of subalpine meadows, which have been documented throughout the Northern Hemisphere...

Resource Type:

Dissertation

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DISSERTATION submitted to Oregon State University in partial fulfillment of the requirements for
The effects of mechanical damage on residual coastal Douglas-fir (Pseudotsuga menziesii [Mirbel] Franco) following commercial thinning

Creator:

Kiser, James D.

Abstract:

Commercial thinning operations can result in damage to residual stems. A literature review revealed that little was known about the effects of residual logging wounds with regard to rotation-age commercial conifers, particularly Douglas-fir. An experiment to examine fungal colonization of Douglas-fir following logging damage showed that while damage was significant...

Resource Type:

Dissertation

Full Text:

submitted to Oregon State University in partial fulfillment of the requirements for the
Potential carbon storage at the landscape scale in the Pacific Northwest, U.S.A.

Creator:

Smithwick, Erica Ann Hoffa

Abstract:

Estimates of potential carbon (C) storage can be used to constrain predictions of future carbon sequestration and to understand the degree to which disturbances, both natural aid anthropogenic, affect C storage. An upper bound on C storage in the Pacific Northwest (PNW) of the United States was estimated using field...

Resource Type:

Dissertation

Full Text:

, and the Richardson Endowment to the College of Forestry, Oregon State University. A special thanks

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Academic Affiliation

Forest Ecosystems and Society20
Forest Science13
Forest Engineering Resources and Management1
Wood Science and Engineering1

Advisor

Bond, Barbara J.4
Hibbs, David E.3
Spies, Thomas A.3
Betts, Matthew G.2
Lachenbruch, Barbara2
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1986 to 2020

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Committee Member

Waring, Richard3
Adams, Darius2
Anderson, Paul2
Bachelet, Dominique2
Bond, Barbara2
more Committee Members »

Creator

Barnard, Holly Rene1
Butler, Brett J.1
Carloni, Kenneth R.1
Dauer, Jenny M.1
Frey, Sarah J. K.1
more Creators »

Date

Date range begin – Date range end

Current results range from 1986 to 2019

View distribution

Decade

2010-201915
2000-200915
1990-19991
1980-19892

Degree Field

Forest Science[remove]33
Forest Engineering1
Wood Science1

Degree Level

Doctoral[remove]33

Degree Name

Doctor of Philosophy (Ph.D.)33

File Format

application/pdf6

Language

English [eng]33

License

All rights reserved28

Non-Academic Affiliation

Oregon State University. Graduate School32

Peer Reviewed

No31

Resource Type

Dissertation33

Rights Statement

In Copyright28
Copyright Not Evaluated4
In Copyright - Non-Commercial Use Permitted1

Subject

Forest microclimatology -- Oregon -- H.J. Andrews Experimental Forest2
Poplar -- Genetic engineering2
Artificial satellites in forestry -- Blue Mountains (Or. and Wash.)1
Artificial satellites in forestry -- Brazil -- Floresta Nacional do Tapajós1
Autocorrelation (Statistics)1
more Subjects »

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