Index Catalog // ScholarsArchive@OSU

Do vigorous young forests reduce streamflow? Results from up to 54 years of streamflow records in eight paired-watershed experiments in the H. J. Andrews and South Umpqua Experimental Forests

Creator:: Perry, Timothy D.
Abstract:: This study quantified the magnitude and timing of summer streamflow deficits in paired-watershed experiments in the Cascade Range of Oregon where mature and old-growth conifer forests were subjected to clearcutting, patch cutting, and overstory thinning treatments in the 1960s and 1970s. Hydrologic effects of clearcutting, small-patch cutting, and overstory thinning...
Resource Type:: Masters Thesis
Full Text:: Years of Streamflow Records in Eight Paired-watershed Experiments in the H. J. Andrews and South Umpqua

Enhancing social-ecological resilience in the Colorado River Basin

Creator:: Eidem, Nathan T.
Abstract:: This research presents the Colorado River basin as a social-ecological system. Utilizing event data on cooperative and conflictive interactions over fresh water, the system is decomposed to look for evidence of outcomes of resilience enhancement. The Animas-La Plata Project in the upper San Juan basin is presented as a case...
Resource Type:: Dissertation
Full Text:: the Upper San Juan Basin .. 92 Table 3.4: Events coded to the Upper San Juan watershed by issue

Thirty-five years of forest succession in southwest Oregon : vegetation response to three distinct logging treatments

Creator:: Arthur, Aaron Stone
Abstract:: This study examined patterns and controls on 35-years of forest succession following logging in the 236 ha South Umpqua Experimental Forest within the Umpqua National Forest in southwestern Oregon. Prior to logging, the overstory in all three watersheds (~50% cover) was composed of Douglas-fir (30-40% cover), grand fir (2 to...
Resource Type:: Masters Thesis
Full Text:: South Umpqua Experimental Forest. WS No. 1 2 3 4 Watershed area (ha) 69.2 68.4 49.8

Gravel disturbance impacts on salmon habitat and stream health : volume II : technical background report

Creator:: Williamson, Kenneth J., Bella, David A., Beschta, Robert L., Grant, Gordon, Klingeman, Peter C., Li, Hiram W., Nelson, Peter O., Castillo, Gonzalo, Lorz, Tom, Meleason, Mark, Minear, Paula, Moret, Stephanie, Nam, Ilgi, Reiter, Maryanne, and Wieland, Lisa
Abstract:: A report for the Oregon Division of State Lands.
Resource Type:: Technical Report
Full Text:: gravel usage. Other areas ofhigh supply and demand are in the Umpqua Basin. The eastern portion of the

Irrigated agriculture, energy, and endangered species in the Upper Klamath Basin : Evaluating trade-offs and interconnections

Creator:: Boehlert, Brent B.
Abstract:: In 2001, an extreme drought tightened water supply in the Upper Klamath Basin (basin) while earlier increases in Endangered Species Act (ESA) water requirements for basin fish species that same year elevated demands. The Bureau of Reclamation (Reclamation), which manages irrigation water in parts of the basin located near the...
Resource Type:: Masters Thesis
Full Text:: understanding of the groundwater dynamics in the Klamath basin; and David Finch, my Graduate Council

Resilience and adaptability of transboundary rivers : the principle of equitable distribution of benefits and the institutional capacity of the Nile Basin

Creator:: Iyob, Biniam
Abstract:: Biophysical, socioeconomic and geopolitical pressures from population growth and economic development are leading to an increase in tensions regarding the sharing of water within transboundary basins. Transboundary basins are surface rivers and groundwater resources that are shared among sovereign nations and autonomous regions. This dissertation focuses on surface water in...
Resource Type:: Dissertation
Full Text:: allocation of this finite resource. Freshwater rivers whose tributaries or watershed basin are

Detecting changes in a wetland : using multi-spectral and temporal Landsat in the Upper Noun Valley Drainage Basin-Cameroon

Creator:: Ndzeidze, Stephen Koghan
Abstract:: Since the early 1980s, satellite imagery has been commonly used to detect change in wetlands. The overall objective of this study is to utilize remote sensing and Geographic Information Systems (GIS) technology to determine the extent of change of the wetland area and of other land use and land cover...
Resource Type:: Masters Thesis
Full Text:: and Temporal Landsat in the Upper Noun Valley Drainage Basin-Cameroon

The application of spatial data analysis and visualization in the development of landscape indicators to assess stream conditions

Creator:: Buckley, Aileen R.
Abstract:: The main theme of this research is the application of geographic techniques in a study involving environmental monitoring and analysis of the associations between landscape and in-stream characteristics in the Pacific Northwest. The geographic techniques used in this study include (1) geographic information systems (GIS) coupled with statistical analysis and...
Resource Type:: Dissertation
Full Text:: sampling sites and their respective watersheds in the Willamette River Basin of western Oregon. The

Trends in streamflow from old growth forested watersheds in the western Cascades

Creator:: Moore, Kathleen M.
Abstract:: Increasing temperatures in western North America are expected to result in a decline in winter snowpacks, earlier snowmelt, and a shift in the timing of streamflows, with an increasing fraction of streamflows occurring earlier in the water year and drier conditions during the summer. However, few streamflow datasets have associated...
Resource Type:: Capstone Project
Full Text:: storage + groundwater recharge, by day of water year, based on data for Watershed 2, 1953-2002 (Source

Spatial patterns of anomalous runoff to precipitation ratios for watersheds within the contiguous United States arranged by level one ecoregions

Creator:: Pittman, Jason W.
Abstract:: Mean annual runoff to precipitation (R/P) ratios were generated for 966 watersheds within the contiguous United States. The watersheds were plotted using Arc View GIS and used as part of an overlay analysis with Level 1 U.S. ecoregions. The ratios were statistically evaluated to determine anomalous R/P conditions within the...
Resource Type:: Capstone Project
Full Text:: research and to Chris Daly for providing guidance throughout the project. Additional advice and council

ScholarsArchive@OSU

Do vigorous young forests reduce streamflow? Results from up to 54 years of streamflow records in eight paired-watershed experiments in the H. J. Andrews and South Umpqua Experimental Forests

Enhancing social-ecological resilience in the Colorado River Basin

Thirty-five years of forest succession in southwest Oregon : vegetation response to three distinct logging treatments

Gravel disturbance impacts on salmon habitat and stream health : volume II : technical background report

Irrigated agriculture, energy, and endangered species in the Upper Klamath Basin : Evaluating trade-offs and interconnections

Resilience and adaptability of transboundary rivers : the principle of equitable distribution of benefits and the institutional capacity of the Nile Basin

Detecting changes in a wetland : using multi-spectral and temporal Landsat in the Upper Noun Valley Drainage Basin-Cameroon

The application of spatial data analysis and visualization in the development of landscape indicators to assess stream conditions

Trends in streamflow from old growth forested watersheds in the western Cascades

Spatial patterns of anomalous runoff to precipitation ratios for watersheds within the contiguous United States arranged by level one ecoregions

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