In light of water scarcity and the impacts of climate change, there is an increased need to understand the interaction between land use characteristics and ecohydrologic processes in semiarid regions. Additionally, many semiarid and arid regions face various land management challenges, including woody plant encroachment, decreased snowpack, and increased stream...
The goal of this project was to develop and test non-herbicidal techniques that remove nonnative
plant or weed seeds from the top 2 inches of the soil. The Nature Conservancy (TNC) is
currently restoring prairies in the Willamette Valley. Some areas of the Pacific Northwest have
already seen loss of...
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(Forcella & Burnside, 1994; Hoekstra, 1992;
Johnson et al., 1990).
Tillage. Increased weed seed
Dramatic declines in several groundfish populations have occurred along
the U.S. West Coast during the last decade (PFMC 1999, Sampson 1997,
Ralston 1998, Bloeser 1999). One problem exacerbating these declines is
insufficient stock assessments, especially for species of west coast rockfish
(Family Scorpaenidae, Genus Sebastes) which comprise the core of...
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REPORT OF
Nicole M. Nasby for the degree of Master of Science in Marine Resource Management presented on
Dramatic declines in several groundfish populations have occurred along
the U.S. West Coast during the last decade (PFMC 1999, Sampson 1997,
Ralston 1998, Bloeser 1999). One problem exacerbating these declines is
insufficient stock assessments, especially for species of west coast rockfish
(Family Scorpaenidae, Genus Sebastes) which comprise the core of...
The DIRT (Detrital Input and Removal Treatments) experiment has been the basis for many analyses on carbon and nitrogen dynamics in relation to detrital manipulation. To this day, no other biogeochemical component has been measured in the DIRT sites. In light of this fact, the objective of my research was...
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BIBLIOGRAPHY
Cho Y, Driscoll CT, Johnson CE, Siccama TG. 2010. Chemical changes in soil and soil
solution
Continental flood basalts represent short-lived but immense blasts of mafic magma to the continental crust. The youngest and smallest continental flood basalt worldwide, the Columbia River Basalt, initiated with the eruption of the most mafic member, the Steens Basalt (~16.9 Ma). The Steens Basalt is exposed in southeast Oregon, southwest...
A previous study conducted in our laboratory demonstrated the critical role that retronasal odors play in vegetable liking and disliking. It remains unclear, however, why some individuals like certain vegetable odors, while others do not. A possible explanation is that some individuals have learned to like the odor of a...
Linear M-mode (1D) and later 2-dimensional (2D) measurements of the left atrium (LA) are commonly been used to assess LA size in veterinary studies despite the fact that studies in human subjects have shown that LA volume (LAV) more accurately reflects LA size than linear measurements due to the complex...
Understanding the tradeoff between water use and productivity is critical for modeling growth of intensively managed Douglas-fir forests in the Pacific Northwest. Evapotranspiration is closely linked to carbon dioxide intake during the process of photosynthesis. However, summer drought characterizing the growing season in this region imposes a limit on carbon...
Organic semiconductors have attracted considerable attention due to their applications in low-cost, solution-processable (opto)electronic devices. An important class of high-performance organic semiconductors is pentacene derivatives, which exhibit high charger carrier mobilities in field-effect transistors and ultrafast singlet fission in photovoltaic devices. These derivatives have served as benchmark materials for systematic...