Index Catalog // ScholarsArchive@OSU

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:: Biofuels AN ABSTRACT OF THE THESIS OF Kristin L. Coons for the degree of Master of Science in

Using soil data to enhance modeling of forest responses to climate change

Creator:: Peterman, Wendy L.
Abstract:: The over-arching theme of this work is that soil data affect the performance and realism of vegetation models with particular focus on their ability to predict or explain disturbances such as fire or disease. We tested the sensitivity of the Excel version of the 3-PG model to soil properties and...
Resource Type:: Dissertation
Full Text:: Wendy L. Peterman June 4, 2014 All Rights Reserved Using Soil Data to Enhance Modeling

Water Use and Competitiveness of Senecio sylvaticus in Young Pseudotsuga menziesii Plantations in Western Oregon

Creator:: Cowden, Reed J.
Abstract:: Competition for soil water resources between newly planted Douglas-fir seedlings and aggressive early-seral plants, such as Senecio sylvaticus [L.] (Woodland groundsel, Senecio), can create drought conditions that impact tree seedling physiology, growth and likelihood of mortality. However, the specific impact of Senecio on soil moisture dynamics and inducement of water...
Resource Type:: Masters Thesis
Full Text:: Douglas-fir seedlings and aggressive early-seral plants, such as Senecio sylvaticus [L.] (Woodland

Evaluation of six tools for estimating woody biomass moisture content

Creator:: Becerra Ochoa, Fernando Amador
Abstract:: Woody biomass transportation costs and market values/costs are strongly correlated with the woody biomass moisture content. Properly managing moisture content can potentially lead to economic and environmental advantages in biomass energy markets. Good management requires accurate moisture content measurements. Therefore, availability of accurate, precise, reliable, and efficient tools to assess...
Resource Type:: Masters Thesis
Full Text:: ponderosa L.), western hemlock (Tsuga heterophylla (Raf.) Sarg.), hybrid poplar (Populus spp.), Madrone

Modelling Early-Seral Vegetation Dynamics Using Climate and Soil Moisture

Creator:: Guevara, Claudio A.
Abstract:: Forest plantations in the Pacific Northwest are highly productive and have been intensively managed to maximize tree growth with practices such as Forest Vegetation Management (FVM). Different FVM regimes have been shown to enhance forest establishment by reducing the competition between the planted seedlings and early-seral vegetation. To better understand...
Resource Type:: Masters Thesis
Full Text:: & Preest, 1988; Wagner et al., 2006). 3 There are several vegetation management methods and

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:: . (1985) reported a 17.5% increase in volume 2 growth of 13 year old loblolly pine (Pinus taeda L

Characterizing early-seral competitive mechanisms influencing Douglas-fir seedling growth, vegetation community development, and physiology of selected weedy plant species

Creator:: Dinger, Eric J.
Abstract:: Three studies were conducted to characterize and present early-seral competition between Douglas-fir seedlings and the surrounding vegetation communities during Pacific Northwest forest establishment. The first experiment served as the foundation for this dissertation and was designed to quantify tradeoffs associated with delaying forest establishment activities by introducing a fallow year...
Resource Type:: Dissertation
Full Text:: effects (Wagner 1989; Miller et al 1991; Cain 1999; Rose and Rosner 2005). 2 Vegetation

Temporal effect of vegetation management on growth and wood quality of conifers in a western Oregon plantation

Creator:: Goracke, Heidi S. Roe
Abstract:: Concern over the increasing proportion of juvenile wood grown in second growth plantations has led to a large amount of research on the effects of common silvicultural practices on wood quality. Lacking is research on the effect of timing and duration of vegetation control on wood quality near the pith...
Resource Type:: Masters Thesis
Full Text:: forestry literature in the late nineties when Robert Wagner tested the concept on four conifer species in

Characterization of Fungal Endophyte Populations in Ponderosa Pine (Pinus ponderosa) Needles in The B&B Fire Complex of The Eastern Cascade Mountain Range

Creator:: Scrivani, James V.
Abstract:: Forests are some of the most ecologically diverse and dense habitats on the planet. Research shows that the endophyte community, or the fungi, bacteria, and viruses within a forest ecosystem is highly diverse. Fungal endophytes are defined as fungi that live within the tissues of host plants. Relationships between fungal...
Resource Type:: Masters Thesis
Full Text:: , 396(6706), 69. Wagner, B. L., & Lewis, L. C. (2000). Colonization of corn, Zea mays, by the

Trophic cascades and large mammals in the Yellowstone ecosystem

Creator:: Painter, Luke E.
Abstract:: Reintroduction of wolves to Yellowstone National Park (YNP) in 1995-96 provided a rare opportunity to observe the response of an ecosystem to the return of a top predator, including possible reversal of decades of decline of aspen, cottonwood, and tall willows suppressed by intensive herbivory on elk winter ranges. To...
Resource Type:: Dissertation
Full Text:: AUTHORS Dr. William J. Ripple was involved in the design and writing of Chapters 2-5. Dr. Robert L

ScholarsArchive@OSU

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

Using soil data to enhance modeling of forest responses to climate change

Water Use and Competitiveness of Senecio sylvaticus in Young Pseudotsuga menziesii Plantations in Western Oregon

Evaluation of six tools for estimating woody biomass moisture content

Modelling Early-Seral Vegetation Dynamics Using Climate and Soil Moisture

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

Characterizing early-seral competitive mechanisms influencing Douglas-fir seedling growth, vegetation community development, and physiology of selected weedy plant species

Temporal effect of vegetation management on growth and wood quality of conifers in a western Oregon plantation

Characterization of Fungal Endophyte Populations in Ponderosa Pine (Pinus ponderosa) Needles in The B&B Fire Complex of The Eastern Cascade Mountain Range

Trophic cascades and large mammals in the Yellowstone ecosystem

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

Language

License

Location

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search