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Filtering by: Subject Land use -- Oregon -- Willamette River Valley Remove constraint Subject: Land use -- Oregon -- Willamette River Valley Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.) License All rights reserved Remove constraint License: All rights reserved

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Response of Roughstalk Bluegrass (Poa trivialis L.) to Waterlogging Stress

Creator:

Liu, Mingyang

Abstract:

Roughstalk bluegrass (Poa trivialis L.) (RB) is a weed species that increased very quickly in grass seed production fields of the Willamette Valley. The invasion of RB in grass seed crops often occurs in waterlogged soils. In waterlogged areas, RB exhibited better competitiveness and had greater population densities than other...

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Dissertation

Full Text:

..................................................................................1 Grass seed production in Oregon and Willamette Valley ..................................1 Poa
New Applications for Passive Samplers : In-situ Flux and Risk Assessment of Legacy and Emerging Contaminants

Creator:

Tidwell, Lane G.

Abstract:

Passive sampling devices (PSDs) were used to measure air vapor and water dissolved phase concentrations of polycyclic aromatic hydrocarbons (PAHs) and oxygenated PAHs (OPAHs) at two different environmentally contaminated sites. Environmental contaminates like PAHs and OPAHs are present in both the atmospheric and aqueous environmental compartments. It is known that...

Resource Type:

Dissertation

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concentrations and flux rate in Gulf of Mexico......31 Figure 3.1 Sampling locations on the Willamette River
Dynamics of Zymoseptoria tritici Fungicide Resistance in the Willamette Valley of Oregon

Creator:

Hagerty, Christina H.

Abstract:

The development of resistance to multiple fungicide classes is currently limiting disease management options for many pathogens, while the discovery of new fungicide classes has become less frequent. To address this pressing issue, a three-part study with different layers of complexity, objectives, and experimental approaches was conducted using the model...

Resource Type:

Dissertation

Full Text:

Resistance in the Willamette Valley of Oregon. Abstract approved
Mulching to Manage Mummy Berry of Blueberry

Creator:

Florence, Jade

Abstract:

Monilinia vaccinii-corymbosi pseudosclerotia overwinter on the soil surface and produce apothecia in early spring, providing primary inoculum for Mummy Berry Disease of blueberry. Burial under 2.5 cm of soil or the absence of light have previously been identified as critical factors preventing the development of apothecia. Mulches were applied to...

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Dissertation

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collaborator field sites in the Willamette Valley. Mulch depth loss was also assessed at the end of the
Hydrologic and Land Cover Effects on Sources and Fate of In-Stream Fluorescent Dissolved Organic Matter

Creator:

Lee, Baek Soo P.

Abstract:

Dissolved organic matter (DOM) is a critical component of the carbon cycle linking terrestrial and aquatic ecosystems. Although many factors influence DOM fluxes and quality in rivers, controls on DOM compositions in catchments of the western U.S. are poorly understood. UV and fluorescent spectroscopy is a simpler, faster, and less...

Resource Type:

Dissertation

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of the Willamette River Basin, Oregon, based on two years of monitoring. This dissertation
How Do Population Growth, Land-use Regulations, and Precipitation Patterns Affect Water Use? A Fine-scale Empirical Analysis of Landscape Change

Creator:

Bigelow, Daniel P.

Abstract:

A growing body of literature exists on how human population growth and changes in climatic factors influence the availability of water (Elliot et al. 2014, Prudhomme et al. 2014). These studies typically conclude that climate change is expected to have negative consequences on water availability, an effect that is magnified...

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Dissertation

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associated with land and water use in my study area, Oregon’s Willamette Valley. In Chapter 3, I estimate a
Optimizing Reservoir Operations to Adapt to 21st Century Expectations of Climate and Social Change in the Willamette River Basin, Oregon

Creator:

Moore, Kathleen M.

Abstract:

Reservoir systems in the western US are managed to serve two main competing purposes: to reduce flooding during the winter and spring, and to provide water supply for multiple uses during the summer. Because the storage capacity of a reservoir cannot be used for both flood damage reduction and water...

Resource Type:

Dissertation

Full Text:

21 st Century Expectations of Climate and Social Change in the Willamette River Basin, Oregon
Water scarcity and reservoir reliability in basins affected by climate and land use change : impacts of hydrogeology, sensitivities, and uncertainties in the Santiam River Basin, Oregon

Creator:

Mateus, M. Cristina

Abstract:

Multipurpose management of hydrosystems face a number of uncertainties related to hydrologic variability and nonstationarity. Anticipated air temperature increases in the Pacific Northwest region are projected to alter the timing and quantity of streamflow associated with precipitation shifting from snow to rain, including shorter winter runoff periods, earlier spring runoff,...

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Dissertation

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at the confluence of the Willamette River, to 3,199 m at the summit of Mt. Jefferson. Land use is
Habitat management for beneficial insects on Willamette Valley vegetable and berry farms

Creator:

Russell, Michael C.

Abstract:

Conservation biological control involves manipulating farm landscapes or management systems to enhance populations of beneficial predators of agricultural pests. Farmscaping is one aspect of conservation biological control where predators of important pests are identified, the availability on the farm landscape of resources and habitat components needed by the beneficials to...

Resource Type:

Dissertation

Full Text:

Horticulture presented on May 23, 2013 Title: Habitat Management for Beneficial Insects on Willamette Valley
The role of body size in the foraging strategies and management of avian herbivores : a comparison of dusky Canada geese (Branta canadensis occidentalis) and cackling geese (B. hutchinsii minima) wintering in the Willamette Valley of Oregon

Creator:

Mini, Anne E.

Abstract:

Body size explains much of the interspecific variation in the physiology, behavior, and morphology of birds, such as metabolic rate, diet selection, intake rate, gut size, and bill size. Based on mass-specific metabolic requirements and relative energetic costs of activities, being a certain body size has both advantages and disadvantages....

Resource Type:

Dissertation

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. Mini 2 Agriculture is the primary land use in Oregon’s Willamette Valley and grass

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Academic Affiliation

Crop and Soil Science4
Botany and Plant Pathology3
Fisheries and Wildlife3
Horticulture2
Applied Economics1
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Advisor

Mallory Smith, Carol2
Anderson, Kim A.1
Bliss, John C.1
Borman, Michael M.1
Campana, Michael E.1
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Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2003 to 2017

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Committee Member

Jepson, Paul3
Parke, Jennifer2
Williams, David2
Ball, Dan1
Banowetz, Gary1
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Creator

Ambrosino, Mario D.1
Bigelow, Daniel P.1
Cortell, Jessica M.1
Dreves, Amy J.1
Fischer, Alexandra Paige1
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Date

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Current results range from 2002 to 2016

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2010-201914
2000-200910

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Crop Science4
Botany and Plant Pathology3
Water Resources Engineering3
Environmental Sciences2
Horticulture2
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Degree Level

Doctoral24

Degree Name

Doctor of Philosophy (Ph.D.)[remove]24

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application/pdf7

Language

English [eng]24

License

All rights reserved[remove]24

Non-Academic Affiliation

Oregon State University. Graduate School24

Peer Reviewed

No23

Resource Type

Dissertation24

Rights Statement

In Copyright24

Subject

Land use -- Oregon -- Willamette River Valley2
Phenols2
Pinot noir (Wine) -- Oregon -- Willamette River Valley2
Viticulture -- Oregon -- Willamette River Valley2
Air -- Pollution -- Mexico, Gulf of1
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