Index Catalog // ScholarsArchive@OSU

Response of Soil Microbially Mediated Nutrient Cycling and Community Structure to Timber Harvest in the Pacific Northwest

Creator:: Danielson, Rachel E.
Abstract:: Forest harvest persists as one of the most globally important industries, and crucially provides raw wood products for both building and fuel materials. Mechanistically complex abiotic and biotic processes curb ecosystem recovery following timber harvest and it is of great importance to understand the effects of this practice on biogeochemical...
Resource Type:: Masters Thesis
Full Text:: how timber harvest across the Pacific Northwest impacts microbial biogeochemical cycling activity

Functional profiles of soil microbial communities in second-growth Douglas-fir forests of the Pacific Northwest

Creator:: McGinnis, Megan L.
Abstract:: Forests are one of the largest repositories of terrestrial C. Understanding factors that drive organic matter transformations and nutrient efflux from these systems is therefore highly important. Temperate forests are of particular significance due to the large fraction of C that is stored below ground in the soil. Characterizing nutrient...
Resource Type:: Masters Thesis
Full Text:: -growth Douglas- fir Forests of the Pacific Northwest Abstract Approved: David D. Myrold

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:: : Potential Carbon Storage at the Landscape Scale in the Pacific Northwest, U.S.A. Abstract approved

Carbon storage in a Pacific Northwest conifer forest ecosystem : a chronosequence approach

Creator:: Janisch, Jack E.
Abstract:: As concern over global warming intensifies, sequestration and storage of atmospheric CO2 has become an important scientific and policy issue. Confusion persists, however, over interpretation of forest carbon (C) source-sink dynamics, in part because conclusions drawn depend on temporal and spatial scales of analysis (e.g. day-week scale vs. successional-scale), type...
Resource Type:: Masters Thesis
Full Text:: Pacific Northwest Conifer Forest Ecosystem: A Chronoseguence Approach Signature redacted for privacy

A methodology to reduce the strain on hydro turbines using advanced life extending control of multiple energy storage systems

Creator:: Brosig, Sean G.
Abstract:: Over the last 20 years, there has been rapid growth in the amount of installed wind power in the Pacific Northwest, specifically in the Columbia River Gorge. The variable and non-dispatchable nature of this resource requires that it be balanced in some form by other sources on the grid. In...
Resource Type:: Masters Thesis
Full Text:: Pacific Northwest, specifically in the Columbia River Gorge. The variable and non-dispatchable nature of

Live-tree carbon in the Pacific Northwest : estimates and uncertainties

Creator:: Melson, Susanna L.
Abstract:: Concentration of carbon dioxide (CO₂) in the atmosphere has increased over the past 150 years. Because CO₂ is one of a number of radiatively active gases, there is concern that global temperatures will rise and climatic conditions will change. Recent research indicates northern hemisphere forests may currently be accumulating carbon...
Resource Type:: Masters Thesis

Patterns of macrophyte wrack deposition on sandy beaches of the Pacific Northwest coast, U.S.A.

Creator:: Reimer, Jessica N.
Abstract:: Dislodged macroalgae and seagrasses, also known as marine wrack, frequently wash into coastal ecosystems from the ocean and are potentially important ecological resources for biological communities. These!nutrient and organic matter subsidies may be especially important on sandy beaches, where little in situ primary productivity exists for higher trophic levels. To...
Resource Type:: Masters Thesis
Full Text:: of the Pacific Northwest coast, U.S.A. ! AN ABSTRACT OF THE THESIS OF! ! ! Jessica N. Reimer for

The influence of parasite ecology on the genetic structure of parasite populations

Creator:: Criscione, Charles David
Abstract:: Parasites are unique study organisms for evolutionary ecologists. Yet, molecular ecology studies on parasites have lagged far behind those on free-living organisms. The goal of the review in Chapter 2 was to illustrate areas of research that may be of particular interest in relation to the parasitic life style and...
Resource Type:: Dissertation

Life Cycle Assessment of Biomass for Generation of energy : Case Studies of Poplar Management in the Pacific Northwest of the U.S.A.

Creator:: Vasquez Sandoval, Marcia A.
Abstract:: A Life Cycle Assessment (LCA) of the production of poplar biomass grown under four management conditions in the Pacific Northwest (PNW) of the U.S.A. was conducted. While the extraction of fossil fuels and the subsequent generation of energy have environmental impacts, the alternative of extracting poplar biomass also has impacts...
Resource Type:: Dissertation
Full Text:: : CASE STUDIES OF POPLAR CULTIVATIONS UNDER DIFFERENT GROWING CONDITIONS IN THE PACIFIC NORTHWEST OF USA

Soil respiration, carbon and nitrogen leaching, and nitrogen availability in response to harvest intensity and competing vegetation control in Douglas-fir (Pseudotsuga menziesii) forests of the Pacific Northwest

Creator:: Slesak, Robert A.
Abstract:: Management practices following forest harvest can affect long-term soil productivity through alteration of soil carbon (C) and nitrogen (N) pools, but processes contributing to change are poorly understood. I assessed effects of three levels of logging-debris retention in combination with initial or annual applications of competing vegetation control (CVC) following...
Resource Type:: Dissertation
Full Text:: Douglas-fir (Pseudotsuga menziesii) forests of the Pacific Northwest Abstract approved

ScholarsArchive@OSU

Response of Soil Microbially Mediated Nutrient Cycling and Community Structure to Timber Harvest in the Pacific Northwest

Functional profiles of soil microbial communities in second-growth Douglas-fir forests of the Pacific Northwest

Potential carbon storage at the landscape scale in the Pacific Northwest, U.S.A.

Carbon storage in a Pacific Northwest conifer forest ecosystem : a chronosequence approach

A methodology to reduce the strain on hydro turbines using advanced life extending control of multiple energy storage systems

Live-tree carbon in the Pacific Northwest : estimates and uncertainties

Patterns of macrophyte wrack deposition on sandy beaches of the Pacific Northwest coast, U.S.A.

The influence of parasite ecology on the genetic structure of parasite populations

Life Cycle Assessment of Biomass for Generation of energy : Case Studies of Poplar Management in the Pacific Northwest of the U.S.A.

Soil respiration, carbon and nitrogen leaching, and nitrogen availability in response to harvest intensity and competing vegetation control in Douglas-fir (Pseudotsuga menziesii) forests of the Pacific Northwest

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