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The effects of land use on mineral flat wetland hydrologic processes in lowland agricultural catchments

Creator:: Marshall, Sarah M.
Abstract:: Hydrologic processes within mineral flat wetlands, along with their connections to groundwater and downstream surface water in lowland agricultural catchments are poorly understood, particularly under different land uses. In the three field studies included in this thesis, we examined infiltration, wetland hydroperiod, groundwater recharge dynamics, surface runoff generation, and water...
Resource Type:: Dissertation
Full Text:: 2.1 Study area in the southern Willamette Valley lowlands, Oregon………………………………………………………… 2.2

Landsat-based monitoring of annual wetland change in the main-stem Willamette River floodplain of Oregon, USA from 1972 to 2012

Creator:: Fickas, Kate C.
Abstract:: Despite holding substantial ecological value, wetlands in the United States have experienced a significant decline in both area and function over the past century with the majority of freshwater wetland loss attributed to agricultural conversion. Agriculture is the second largest industry in the State of Oregon and the State places...
Resource Type:: Masters Thesis
Full Text:: use planning goals on the preservation of agricultural land. Oregon’s Willamette Valley accounts for

Pits, Politics, and People : Identifying Barriers to the Enhancement Reclamation of Floodplain Aggregate Mines in the Willamette Valley, OR

Creator:: Morrison, Elizabeth A.
Abstract:: Aggregate, which consists of crushed rock, sand, and gravel resources, is one of the most extracted resources in Oregon. Floodplain sites throughout the Willamette Valley -- particularly along the Willamette River -- are of particular importance because they produce high quality sand and gravel, located close to the aggregate market....
Resource Type:: Masters Thesis
Full Text:: land use conflicts in the Valley. Although Oregon has state and local government policies in place to

Land use distributions and changes in the Willamette Valley in relation to soil characteristics

Creator:: Wiens, John Herbert
Abstract:: A study was undertaken in the Willamette Valley, Oregon, to document 1971 land use patterns as well as land use change in a smaller study area in the 16 years prior, and to relate these to soil characteristics. Quantification of these inter-relationships was aided by use of computer tabulation and...
Resource Type:: Dissertation
Full Text:: photointerpretive factors to mapping land use and cover classes in the Willamette Valley, Oregon. 113 7 1971 land

Willamette Valley land adaptability

Creator:: Selby, H. E. (Halbert Edgerton), 1896-, Fryer, Leland, and Oregon State Agricultural College. Agricultural Experiment Station
Abstract:: Published March 1937. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Willamette Valley Land Adaptability Oregon State System of

Use of oak woodlands (Quercus garryana) for farm forestry and grazing in the Willamette Valley

Creator:: Hall, Frederick C.
Resource Type:: Masters Thesis
Full Text:: and Grazing in the Willamette Valley USE OF OAK WOODLANDS (~ERCUS GARRYANA) FOR FARM FORESTRY AND

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
Full Text:: of the Willamette River Basin, Oregon, based on two years of monitoring. This dissertation

A spatially explicit method for determining the effects of watershed scale land use on stream conditions

Creator:: Kehmeier, Jonathan W.
Abstract:: The primary goal of this research was to identify the impacts that individual agricultural land uses have on fish communities in small streams located in the Willamette Valley of western Oregon. The diverse nature of the land use features of the valley provided a challenging but useful system for the...
Resource Type:: Masters Thesis
Full Text:: of land use influences is especially important in the Willamette Valley ecoregion of western Oregon

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...
Resource Type:: Dissertation
Full Text:: associated with land and water use in my study area, Oregon’s Willamette Valley. In Chapter 3, I estimate a

Stream DOC, nitrate, chloride and SUVA response to land use during winter baseflow conditions in sub-basins of the Willamette River Basin, OR

Creator:: Frentress, Jay
Abstract:: To better understand the impact of land use on stream nutrient export, a synoptic sampling of 57 sub-basins within the Willamette River basin was conducted during winter baseflow conditions (February 2009). I assessed whether stream dissolved organic carbon (DOC), NO₃⁻ and Cl⁻ and specific ultra-violet absorbance (SUVA) values were correlated...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

The effects of land use on mineral flat wetland hydrologic processes in lowland agricultural catchments

Landsat-based monitoring of annual wetland change in the main-stem Willamette River floodplain of Oregon, USA from 1972 to 2012

Pits, Politics, and People : Identifying Barriers to the Enhancement Reclamation of Floodplain Aggregate Mines in the Willamette Valley, OR

Land use distributions and changes in the Willamette Valley in relation to soil characteristics

Willamette Valley land adaptability

Use of oak woodlands (Quercus garryana) for farm forestry and grazing in the Willamette Valley

Hydrologic and Land Cover Effects on Sources and Fate of In-Stream Fluorescent Dissolved Organic Matter

A spatially explicit method for determining the effects of watershed scale land use on stream conditions

How Do Population Growth, Land-use Regulations, and Precipitation Patterns Affect Water Use? A Fine-scale Empirical Analysis of Landscape Change

Stream DOC, nitrate, chloride and SUVA response to land use during winter baseflow conditions in sub-basins of the Willamette River Basin, OR

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