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Filtering by: Alternative title ssim PNW 22 Remove constraint Alternative title ssim: PNW 22 Committee Member Kimerling, Jon Remove constraint Committee Member: Kimerling, Jon Decade 1990-1999 Remove constraint Decade: 1990-1999

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  • Spatial and temporal patterns of fire in the forests of the central Oregon Coast Range

    Creator:
    Impara, Peter C.
    Abstract:
    Fire history and fire regime were interpreted from tree ring analysis of 4320 stumps at 178 sites in a 25 by 55 km area in the central Oregon Coast Range. A total of 27 fire episodes were identified in a 516 year period, with sizes estimated at 18 to 544...
    Resource Type:
    Dissertation
    Full Text:
    and review of my dissertation. This work was funded by cooperative agreement (No. PNW 93-0478

  • Long-term effects of tillage, nitrogen, and rainfall on winter wheat yields

    Creator:
    Camara, Kelli Marie
    Abstract:
    Winter wheat is commonly grown in dryland cropping systems in the Pacific Northwest region of semi-arid eastern Oregon. For agronomic, economic, and environmental reasons, it is important to understand the long-term sustainability of such dryland systems. The objective of this study was to evaluate the long-term effects of tillage, nitrogen...
    Resource Type:
    Masters Thesis
    Full Text:
    .......................................................................................................... 22 Rainfall

  • Bird-habitat relationships at multiple spatial resolutions in the Oregon Coast Range

    Creator:
    Brooks, Jonathan P.
    Abstract:
    I analyzed the relationship between avian abundance and landscape structure at five spatial resolutions for 30 subbasins in the central Oregon Coast Range using remotely sensed data and a geographic information system (GIS). I developed maps of forest successional stages from Landsat Thematic Mapper (TM) data at a spatial resolution...
    Resource Type:
    Masters Thesis
    Full Text:
    RESULTS 22 Effects of Minimum Mapping Unit on Patch Type 22 Correlation Analysis 22 Regression Analysis

  • An assessment of community-based adaptive watershed management in three Umpqua Basin Watersheds

    Creator:
    Habron, Geoffrey Bryan
    Abstract:
    The dissertation introduces community-based adaptive watershed management (CAWM) as a holistic conservation framework. The CAWM framework integrates social and ecological suitability to achieve conservation outcomes. The core theoretical concepts consist of adaptive management, adoption-diffusion, symbolic interactionism, community-based conservation, spatial analysis and watershed management. The CAWM framework is applied to the...
    Resource Type:
    Dissertation
    Full Text:
    ..............................................................................................................22 6. Delineating the problem is critical to the adaptive management process........23 7. Umpqua