Index Catalog // ScholarsArchive@OSU

An evaluation of a procedure for predicting sediment yield increases from silivicultural activities

Creator:: Larson, Keith R.
Abstract:: Sediment yield increases following timber harvest and road construction were predicted for four Pacific Northwest experimental watersheds. Sediment yields were predicted using a handbook developed by the U.S. Forest Service entitled, "An Approach to Water Resources Evaluation of Non-Point Silvicultural Sources" (WRENS). Predicted sediment yield increases varied from 40 to...
Resource Type:: Masters Thesis

Precipitation-snowmelt timing and snowmelt augmentation of large peak flow events, western Cascades, Oregon

Creator:: Jennings, Keith S.
Abstract:: Despite advances in the understanding of rain-on-snow storms and their resulting peak flows, little is understood about the response of snowmelt to precipitation and the relative timing of the two at multiple temporal scales within such events. To address this issue, climate, snowmelt, and streamflow data were analyzed for 26...
Resource Type:: Masters Thesis
Full Text:: storms in the H.J. Andrews Experimental Forest in the western Cascades of Oregon. Cumulative net

Inter-relationships of vegetation, hydrology and micro-climate in a young, Douglas-fir forest

Creator:: Barnard, Holly Rene
Abstract:: The links between forests, streamflow, and climate are poorly understood. Despite hundreds of studies over the past 60 years, fundamental questions of forests' effects on the hydrologic cycle remain unanswered. The hydrological cycle involves mutually-dependent biological and physical processes that operate at multiple scales of time and space, and this...
Resource Type:: Dissertation
Full Text:: term stream discharge data from the H.J. Andrews Experimental Forest (HJA), the site of the field

Beyond the paired-catchment approach : isotope tracing to illuminate stocks, flows, transit time, and scaling

Creator:: Hale, V. Cody
Abstract:: This dissertation integrates a process-based hydrological investigation with an ongoing paired-catchment study to better understand how forest harvest impacts catchment function at multiple scales. We do this by addressing fundamental questions related to the stocks, flows and transit times of water. Isotope tracers are used within a top-down catchment intercomparison...
Resource Type:: Dissertation
Full Text:: HJ Andrews Experimental Forest Catchments- Central Oregon Cascades .......... 19 Methods

Facilities development master plan for H.J. Andrews Experimental Forest and associated research natural areas, Willamette National Forest and Range Experiment Station

Creator:: Willamette National Forest (Agency : U.S.) and Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Abstract:: Gerald W. Williams Collection
Resource Type:: Book
Full Text:: I II IApprove H Facilities Development Master Plan for H.J. Andrews Experimental Forest and

Water residence time and runoff generation in the western Cascades of Oregon

Creator:: McGuire, Kevin J.
Abstract:: The age, or residence time of water is a fundamental descriptor of catchment hydrology, revealing information about the storage, flow pathways and source of water in a single integrated measure. While there has been tremendous recent interest in residence time to characterize catchments, there are few studies that quantify residence...
Resource Type:: Dissertation

Arthropods associated with various age stands of Douglas-fir from foliar, ground, and aerial strata

Creator:: Mispagel, Michael E., Rose, Sharon Diane, and U.S. International Biological Program. Coniferous Forest Biome
Abstract:: The arthropod community in a Douglas-fir forest near Blue River, Lane County, Oregon was investigated from March through August 1973. Five stands of Douglas-fir were sampled: two clearcuttings, a young-growth (20 years old), a midgrowth (125 years old), and an old-growth (450 years old) plot. A pole pruner was used...
Resource Type:: Technical Report
Full Text:: the H. J. Andrews Experimental Forest, Oregon, March 27 to August 7, 1973. 22-25 2. Total numbers of

H.J. Andrews Experimental Forest reference stand system : establishment and use history

Creator:: Hawk, Glenn M. and U.S. International Biological Program. Coniferous Forest Biome
Abstract:: Nineteen l/4-hectare reference stands have been established in the central western Cascade Mountains of Oregon to represent widespread and important portions of the vegetation continuum. Their species diversity, cover, and structure are described here. The stands provide points of reference for visiting scientists and researchers who wish to design experiments...
Resource Type:: Technical Report
Full Text:: Studies OREGON STATE. LIBRARIES 12 0.141670949 5 F 6 6 ,:! W H. J. ANDREWS EXPERIMENTAL FOREST

The historic and contemporary ecology of western Cascade meadows : archeology, vegetation, and macromoth ecology

Creator:: Highland, Steven A.
Abstract:: Montane meadows in the western Cascades of Oregon occupy approximately 5% of the landscape, but contribute greatly to the region's biodiversity. Western Cascades meadows are dynamic parts of the landscape and have contracted by over 50% in the past two hundred years in the HJ Andrews Experimental Forest (hereafter Andrews...
Resource Type:: Dissertation
Full Text:: McKenzie River watershed. The high ridges of the HJ Andrews Experimental Forest were analyzed using air

Measurement and modeling the physical controls of snowmelt in the Pacific Northwest

Creator:: Mazurkiewicz, Adam B.
Abstract:: The physical controls of snowmelt in the Pacific Northwest (PNW) are poorly understood. While there have been numerous field and modeling investigations at the plot and watershed scale, few studies have identified how the snow energy balance (EB) components vary in importance both spatially and temporally. The identification of how...
Resource Type:: Masters Thesis
Full Text:: H.J. Andrews Experimental Forest (HJA) in the western Cascade Mountains of Oregon found that

ScholarsArchive@OSU

An evaluation of a procedure for predicting sediment yield increases from silivicultural activities

Precipitation-snowmelt timing and snowmelt augmentation of large peak flow events, western Cascades, Oregon

Inter-relationships of vegetation, hydrology and micro-climate in a young, Douglas-fir forest

Beyond the paired-catchment approach : isotope tracing to illuminate stocks, flows, transit time, and scaling

Facilities development master plan for H.J. Andrews Experimental Forest and associated research natural areas, Willamette National Forest and Range Experiment Station

Water residence time and runoff generation in the western Cascades of Oregon

Arthropods associated with various age stands of Douglas-fir from foliar, ground, and aerial strata

H.J. Andrews Experimental Forest reference stand system : establishment and use history

The historic and contemporary ecology of western Cascade meadows : archeology, vegetation, and macromoth ecology

Measurement and modeling the physical controls of snowmelt in the Pacific Northwest

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