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Filtering by: Conference name Western Nutrient Management Conference Remove constraint Conference name: Western Nutrient Management Conference Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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  • Features of boardrooms and conference rooms in Pacific Northwest organizations

    Creator:
    Foltz, Andrew L.
    Abstract:
    This study examines selected cultural elements of the negotiating environment in seventeen organizations having home or branch offices in the Northwest United States. Conference room and boardroom design, intentional placement of meaningful artifacts, arrangement of seating, and providing of refreshments are compared. Observations and interviews of organizational representatives in nine...
    Resource Type:
    Masters Thesis
    Full Text:
    : Features of Boardrooms and Conference Rooms in Pacific Northwest Organizations John A. Young This study

  • Application of nitrogen stable isotopes to identify sources of nutrient pollution : a management tool?

    Creator:
    Redon, Elizabeth A.
    Abstract:
    Nutrient pollution may perhaps be one of the oldest water quality problems and has recently been considered as one of the greatest threats to estuarine and coastal waters. Excessive nutrient loads have had a vast array of impacts on estuarine and coastal ecosystems globally. Direct negative effects include: shading out...
    Resource Type:
    Masters Thesis
    Full Text:
    Stable Isotopes to Identify Sources of Nutrient Pollution: A Management Tool? Abstract approved: Fred

  • Role of a grass riparian zone in controlling the fate of nitrogen in a poorly drained agricultural landscape

    Creator:
    Davis, Jennifer H.
    Abstract:
    Riparian ecosystems, through their unique positions in the agricultural landscape, have the potential to mitigate nutrient loading to streams. This study was conducted to gain a better understanding of N cycling in a poorly drained Grass Riparian Zone (GRZ) and adjacent Perennial Ryegrass seed Field (PRF) in the Willamette Valley,...
    Resource Type:
    Dissertation
    Full Text:
    landscape, have the potential to mitigate nutrient loading to streams. This study was conducted to gain a

  • Single-Cell Genomics of Uncultivated Marine Bacteria

    Creator:
    Landry, Zachary
    Abstract:
    Historically, the difficulty of obtaining pure cultures of abundant marine microbial plankton has an obstacle to reconstructing the underlying mechanisms of biogeochemistry in the ocean. While a number of dominant marine species from the ocean surface have been cultured, the dominant microbial plankton of the dark ocean proved far more...
    Resource Type:
    Dissertation
    Full Text:
    role in nutrient cycling in the dark ocean. Due to their distinctive vertical profile, early

  • The influence of contemporary forest management on stream nutrient concentrations in an industrialized forest in the Oregon Cascades

    Creator:
    Meininger, William Scott
    Abstract:
    The increased demand for wood and fiber from a continually shrinking land base has resulted in the use of intensively managed forest plantations. The concentration of timber production on the most suitable sites allows the world's demand for forest products to be met on less land and enable native forests...
    Resource Type:
    Masters Thesis
    Full Text:
    forest management on water quality. Nutrient concentrations were measured in eight streams from

  • Vegetation and soil response to tree removal methods in invasive western juniper woodlands

    Creator:
    O'Connor, Casey A.
    Abstract:
    On piñon-juniper encroached sites that lack the understory fuels to carry a prescribed fire, treatment options are limited to mechanical methods. Cutting with chainsaws and leaving the trees on site has been the primary treatment method for such sites, however this method creates a potential fire hazard, particularly in the...
    Resource Type:
    Masters Thesis
    Full Text:
    management objectives and site conditions. The high degree of vegetation disturbance and nutrient release

  • Nutrient cycling under 450-year-old Douglas-fir stands

    Creator:
    Abee, Albert
    Abstract:
    To investigate the movement of elements (N, P, k, Ca, and Mg) from the tree crowns by natural litterfall and leave wash, plots were established on six 450 year-old growth stands at the H. J. Andrews Experimental Forest. The following are the results of the data analyses. Elemental concentrations contained...
    Resource Type:
    Masters Thesis
    Full Text:
    ~ ABSTRACT OF THE THESIS OF Al~ert Abee for the Master of Science in Forest Management presented on

  • Persistence of western juniper resource islands following canopy removal

    Creator:
    Miwa, Christopher
    Abstract:
    Western juniper (Juniperus occidentalis) cover has more than doubled within the last century and currently occupies over 9 million acres in the Intermountain West. Encroachment has altered the spatial distribution of soil nutrients and plants in these systems, forming nutrient enriched 'resource islands,' under tree canopies. The purpose of this...
    Resource Type:
    Masters Thesis
    Full Text:
    disturbance event such as fire or mechanical removal. Western Juniper Management Livestock grazing

  • Vineyard floor vegetation management and mineral nutrient competition in grapes

    Creator:
    Tan, Siyuan
    Abstract:
    Two experiments were conducted on wine grapes 'Chardonnay' and 'Gewurtztraminer' (Vitis vinifera L.) in 1986 and 1987 to investigate the performance of grapes in competition with perennial ryegrass (Lolium perenne L.) 'Manhattan 11' sod, the competition between sod and grapes for nutrients and moisture and the effects of nitrogen fertilization...
    Resource Type:
    Masters Thesis
    Full Text:
    Management and Mineral Nutrient Competition in Grapes. Abstract approved: _____>_________^_______

  • Nutrient management and cycling in grass seed crops

    Creator:
    Horneck, Donald Arthur
    Abstract:
    Grass seed production in Oregon's Willamette Valley traditionally relied on open field burning for straw residue disposal and nutrient recycling. Changes in residue management from open field burning to methods that remove straw coincided with rapidly declining K soil test values. A survey of grass seed fields showed that many...
    Resource Type:
    Dissertation
    Full Text:
    of Doctor of Philosophy in Soil Science presented on April 25, 1994 Title: NUTRIENT MANAGEMENT AND