Index Catalog // ScholarsArchive@OSU

Potential effects of climate change and fire management on fire behavior and vegetation patterns on an east Cascades landscape

Creator:: Greaves, Heather E.
Abstract:: Climate exerts considerable control on wildfire regimes, and climate and wildfire are both major drivers of forest growth and succession in interior Northwest forests. Estimating potential response of these landscapes to anticipated changes in climate helps researchers and land managers understand and mitigate impacts of climate change on important ecological...
Resource Type:: Masters Thesis
Full Text:: OF Heather E. Greaves for the degree of Master of Science in Forest Science presented on

Fuel Treatments of Ponderosa Pine (Pinus ponderosa) in the Blue Mountains of Eastern Oregon : A Mycorrhiza Perspective

Creator:: Hart, Benjamin T. N.
Abstract:: Over the course of the last century, a successful history of fire suppression has contributed to unsuccessful present day control over wildfire. In the absence of fire and the janitorial and ecological services it provides, drier inland forests are shifting in species composition and exceeding densities that cannot survive and...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Jane E. Smith Over the course of the last century, a successful history of

Mapping disturbance interactions from earth and space : insect effects on tree mortality, fuels, and wildfires across forests of the Pacific Northwest

Creator:: Meigs, Garrett W.
Abstract:: Given the vital role of forest ecosystems in landscape pattern and process, it is important to quantify the effects, feedbacks, and uncertainties associated with forest disturbance dynamics. In western North America, insects and wildfires are both native disturbances that have influenced forests for millennia, and both are projected to increase...
Resource Type:: Dissertation
Full Text:: . Abstract approved: ______________________________________________________________ Robert E. Kennedy

A Landsat time series approach to characterize bark beetle and defoliator impacts on tree mortality and surface fuels in conifer forests

Creator:: Meigs, Garrett W., Kennedy, Robert E., and Cohen, Warren B.
Abstract:: Insects are important forest disturbance agents, and mapping their effects on tree mortality and surface fuels represents a critical research challenge. Although various remote sensing approaches have been developed to monitor insect impacts, most studies have focused on single insect agents or single locations and have not related observed changes...
Resource Type:: Article
Full Text:: ,⁎, Robert E. Kennedy a, Warren B. Cohen b a Department of Forest Ecosystems and Society, Oregon State

Sensitivity of a subregional scale atmospheric inverse CO₂ modeling framework to boundary conditions

Creator:: Göckede, Mathias, Turner, David P., Michalak, Anna M., Vickers, Dean, and Law, Beverly E.
Abstract:: We present an atmospheric inverse modeling framework to constrain terrestrial biosphere CO₂ exchange processes at subregional scales. The model is operated at very high spatial and temporal resolution, using the state of Oregon in the northwestern United States as the model domain. The modeling framework includes mesoscale atmospheric simulations coupled...
Resource Type:: Article
Full Text:: . Michalak,2,3 Dean Vickers,4 and Beverly E. Law1 Received 4 May 2010; revised 14 September 2010; accepted

Beargrass (Xerophyllum tenax) in decline? An investigation into Region 6 harvest volumes

Creator:: Pape, Brianda
Abstract:: Non-timber forest products (NTFPs) have an extensive history of harvest in the United States. The Pacific Northwest is well-reputed as a major source of floral greens for international markets. One NTFP in particular, beargrass (Xerophyllum tenax), has been repeatedly identified as a prominent, high-value species in the floral greens industry...
Resource Type:: Capstone Project
Full Text:: beargrass, are better understood, documented, and managed. Corresponding e-mail address: papeb

Adapting Wastewater Treatment Plants to Sea Level Rise: A Case Study of Half Moon Bay, California

Creator:: Cozzolino, Brittney K.
Abstract:: Wastewater treatment plants around the world are becoming increasingly at risk of sea level rise impacts as these facilities are typically located in low-lying areas to utilize gravity flow for influent (incoming sewage) and effluent (discharged treated sewage). As these risks become realized, treatment plant managers and decision-makers must know...
Resource Type:: Capstone Project
Full Text:: , seawater intrusion, coastal erosion, and other risks related to sea level rise (Hummel et al. 2018

Mixed-conifer forests of central Oregon : structure, composition, history of establishment, and growth

Creator:: Merschel, Andrew G.
Abstract:: The structure and composition of mixed-conifer forest (MCF) in central Oregon has been altered by fire exclusion and logging. The resulting increased density, spatial contagion, and loss of fire resistant trees decrease the resiliency of this ecosystem to fire, drought, and insects. The historical and current composition and structure of...
Resource Type:: Masters Thesis
Full Text:: patterns of forest structure. Landscape Ecology 22:5-24. Heyerdahl, E. K., L.B. Bruraker, and J.K. Agee

Remote Sensing of Photosynthetic Light-use Efficiency of the Amazonian Rainforests

Creator:: De Sousa, Celio Helder Resende
Abstract:: When conditions for photosynthesis are unfavorable, excess solar radiation is dissipated as heat from leaves through a shift in xanthophyll pigments that result in reflecting rather than absorbing light at some wave lengths. The shift in xanthophyll pigments can be quantified as a photochemical reflectance index (PRI) by monitoring specific...
Resource Type:: Dissertation
Full Text:: de Moura, Luiz Eduardo Oliveira e Cruz Aragão, Lênio Soares Galvão, Cibele Hummel do Amaral , Jin

Overstory density and disturbance impacts on the resilience of coniferous forests of western Oregon

Creator:: Neill, Andrew R.
Abstract:: A trait based approach was used to assess impacts of overstory density and thinning on understory vegetation components related to wildlife habitat. The relationship between overstory basal area and understory vegetation for species grouped by traits, such as production of flowers, fleshy-fruit and palatable leaves, was characterized in thinned and...
Resource Type:: Masters Thesis
Full Text:: ., Hummel, I., and Garnier, E. 2007. Let the concept of trait be functional! Oikos 116(5): 882-892

ScholarsArchive@OSU

Potential effects of climate change and fire management on fire behavior and vegetation patterns on an east Cascades landscape

Fuel Treatments of Ponderosa Pine (Pinus ponderosa) in the Blue Mountains of Eastern Oregon : A Mycorrhiza Perspective

Mapping disturbance interactions from earth and space : insect effects on tree mortality, fuels, and wildfires across forests of the Pacific Northwest

A Landsat time series approach to characterize bark beetle and defoliator impacts on tree mortality and surface fuels in conifer forests

Sensitivity of a subregional scale atmospheric inverse CO₂ modeling framework to boundary conditions

Beargrass (Xerophyllum tenax) in decline? An investigation into Region 6 harvest volumes

Adapting Wastewater Treatment Plants to Sea Level Rise: A Case Study of Half Moon Bay, California

Mixed-conifer forests of central Oregon : structure, composition, history of establishment, and growth

Remote Sensing of Photosynthetic Light-use Efficiency of the Amazonian Rainforests

Overstory density and disturbance impacts on the resilience of coniferous forests of western Oregon

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