mirage

Browsing by Subject "Thematic Classification -- Habitats and Vegetation -- Vegetation -- Forests"

DSpace/Manakin Repository

Browsing by Subject "Thematic Classification -- Habitats and Vegetation -- Vegetation -- Forests"

Sort by: Order: Results:

  • An analysis technique for testing log grades 
    Newport, Carl A. (Carl Allen), 1925-; O'Regan, William G. (Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1963)
    Workable log grading systems are needed as aids to marketing timber and other phases of forest management. How can on system be evaluated and compared with other systems. The question of comparisons arose soon after the ...
  • Comparative effects of precommercial thinning, urea fertilizer, and red alder in a site 11, coast Douglas-fir plantation 
    Miller, Richard E.; Obermeyer, Edmund L.; Anderson, Harry William; Pacific Northwest Research Station (Portland, Or.) (Portland, Or. : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1999-11)
    The authors varied the number of red alder retained with 300 Douglas-fir per acre on a high-quality site in coastal Oregon. Alder densities of 0, 20, 40, and 80 per acre were tested. The authors' fifth treatment eliminat ...
  • Composition, volume, and prices for major softwood lumber types in western Oregon and Washington, 1971-2020 
    Weigand, James F.; Pacific Northwest Research Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1998-09)
    An analysis of lumber prices provided regressions for price trends during the period 1971-95 for composite lumber grades of major timber species found in the Pacific Northwest west of the crest of the Cascade Range. The ...
  • A contingent valuation study of the value of reducing fire hazards to old-growth forests in the Pacific Northwest 
    Loomis, John B.; Gonzalez-Caban, Armando; Gregory, Robin (Robin Scott) (Albany, CA : U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station, 1996-07)
    A contingent valuation methodology was applied to old-growth forests and critical habitat units for the Northern Spotted Owl in Oregon to esimate the economic value to the public in knowing that rare and unique ecosystem ...
  • Effect of riparian areas on the ecological condition of small, perennial streams in agricultural landscapes of the Willamette Valley : research plan, June 1997 
    Moser, Thomas J.; Wigington, P.J.; Schuft, Michael J.; Kaufmann, Phillip R.; Herlihy, Alan T.; Van Sickle, John; McAllister, Lynne S. (Corvallis, Or. : U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Lab, 1997-06)
    Little research has been directed toward determining the status and ecological role of riparian areas in agricultural landscapes of the Willamette Valley, Oregon. A research project has been designed to contribute to the ...
  • Environmental effects of postfire logging: literature review and annotated bibliography 
    McIver, James D.; Starr, Lynn; Pacific Northwest Research Station (Portland, Or.) (Portland, Or. : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2000-01)
    The scientific literature on logging after wildfire is reviewed, with a focus on environmental effects of logging and removal of large woody structure. Rehabilitation, the practice of planting or seeding after logging, i ...
  • Fire history and pattern in a Cascade Range landscape 
    Morrison, Peter H.; Swanson, Frederick J.; Pacific Northwest Research Station (Portland, Or.) (Portland, Or. : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1990-05)
    Fire history from years 1150 to 1985 was reconstructed by analyzing forest stands in two 1940-hectare areas in the central-western Cascade Range of Oregon. Serving as records for major fire episodes, these stands reveale ...
  • From the forest to the sea : a story of fallen trees 
    Maser, Chris; Tarrant, Robert F.; Trappe, James M.; Franklin, Jerry F. (Portland, Or. : Pacific Northwest Research Station, U.S. Dept. of Agriculture, Forest ServiceWashington, D. C. : Bureau of Land Management, U.S. Dept. of the Interior, 1988-09)
    Large fallen trees in various stages of decay contribute much-needed diversity of ecological processes to terrestrial, aquatic, estuarine, coastal beach, and open ocean habitats in the Pacific Northwest. Intensive utiliz ...
  • Growth and yield of western larch under controlled levels of stocking in the Blue Mountains of Oregon 
    Cochran, P.H. (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1999-06)
    Repeated thinning to five growing-stock levels resulted in widely differing tree sizes and volumes per acre after 30 years. Largest trees but the least cubic-volume yield per acre were produced in the heaviest thinning l ...
  • High-use destinations in wilderness :|bsocial and biophysical impacts, visitor responses, and management options 
    Cole, David N.; Watson, Alan E.; Hall, Troy E.; Spildie, David R.; Rocky Mountain Research Station (Ogden, Utah) (Ogden, UT : U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 1997-10)
    Six high-use destination areas were studied in the Alpine Lakes, Mount Jefferson, and Three Sisters Wildernesses in Washington and Oregon. Exit interviews were conducted with visitors, and recreation impacts and visitor ...
  • Lodgepole pine development after early spacing in the Blue Mountains of Oregon 
    Cochran, P.H.; Dahms, Walter G. (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1998-02)
    Seedlings were thinned to spacings of 5, 9, 12, 15, and 18 feet and measured periodically. Twenty-seven years after treatment, quadratic mean diameters increased curvilinearity (p < or = 0.05) as spacing increased, but t ...
  • Lower Alsea River watershed analysis 
    U.S. Fish and Wildlife Service; United States. Bureau of Land Management. Marys Peak Resource Area; Siuslaw National Forest; United States. Forest Service; Tai, Doris; Bacho, John P.; Verbics, Belle; Delaini, Jack (U.S. Forest Service, 1999)
    The Lower Alsea River Watershed Analysis contains information which characterizes the processes and trends for resources of concern, and provides a context relating the function of this lower portion of the watershed to ...
  • Management experiments for high-elevation agroforestry systems jointly producing matsutake mushrooms and high-quality timber in the Cascade Range of southern Oregon 
    Weigand, James F. (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1998-07)
    Experimental prescriptions compare agroforestry systems designed to increase financial returns from high-elevation stands in the southern Oregon Cascade Range. The prescriptions emphasize alternative approaches for joint ...
  • Monitoring and evaluating citizen-agency interactions: a framework developed for adaptive management 
    Shindler, Bruce; Cheek, Kristin Aldred; Stankey, George H. (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1999-04)
    As the Forest Service and the Bureau of Land Management turn toward ecosystem and adaptive models of forest stewardship, they are being called on to develop meaningful and lasting relations with citizens. These new manag ...
  • Monitoring design for riparian forests in the Pacific Northwest : research plan 
    Ringold, Paul L.; Barker, Jerry R.; Bollman, Mike; Bradshaw, Gay; Carson, Ward; Cline, Steven Paul; Fiorella, Maria R.; Stepp, Jennifer; United States. Environmental Protection Agency. ǂb Office of Research and Development; National Health and Environmental Effects Laboratory.; Dynamac Corporation; Oregon State University; United States. Forest Service (U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Laboratory, 1997-12)
    The goal of this project is to recommend a broadly-acceptale efficient and effective methodology for characterizing streamside riparian attributes in forested settings at the site grain for regional monitoring. The autho ...
  • Monitoring for Ozone Injury in West Coast (Oregon, Washington, California) Forests in 1998 
    Campbell, Sally J.; Smith, Gretchen; Temple, Pat; Pronos, John; Rochefort, Regina; Andersen, Chris; Pacific Northwest Research Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2000-09)
    In 1998, forest vegetation was monitored for ozone injury on permanent plots in two Sierra Nevada national forests in California, at three locations in Mount Rainier National Park in Washington, and at 68 forest health m ...
  • Pilot experiment of forest fertilization during an outbreak of the western spruce budworm in Northeastern Oregon 
    Mason, Richard R.; Wickman, B.E.; Paul, H.G.; Torgersen, T.R.; Pacific Northwest Research Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1998-05)
    Mixed-conifer stands of grand fir (Abies grandis (Dougl. ex D. Don) Lindl., Douglas-fir (Pseudotsuga menziesii var. glauca (Beissn.) Franco), and ponderosa pine (Pinus ponderosa Dougl. ex Laws.) were fertilized with nitr ...
  • Reducing stand densities in immature and mature stands, Applegate Watershed, Southwest Oregon 
    Main, Marty L.; Amaranthus, Michael P.; Pacific Northwest Research Station (Portland, Or.) (Portland, Or. : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1996-02)
    In the study the authors examined conditions following density management treatments in two adjacent but dissimilar stands in Applegate Watershed, Oregon. An immature stand received a unique density reduction treatment r ...
  • Reduction in growth of pole-sized Ponderosa pine related to a Pandora moth outbreak in central Oregon 
    Cochran, P.H.; Pacific Northwest Research Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1998-07)
    A pandora moth (Coloradia pandora Blake) outbreak began in 1991 in a ponderosa pine (Pinus ponderosa Dougl. ex. Laws) spacing study area that also included scattered sugar pine (P. lambertiana Dougl). The relation of def ...
  • Salmon and forests : report on the Nehalem Watershed 
    Coast Range Association (Coast Range Association, 2000-11-07)

Search ScholarsArchive@OSU

Browse

My Account