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Filtering by: Committee Member Eisgruber, Ludwig Remove constraint Committee Member: Eisgruber, Ludwig Academic Affiliation Rangeland Resources Remove constraint Academic Affiliation: Rangeland Resources

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  • Effect of western juniper on understory herbage production in Central Oregon

    Creator:
    Vaitkus, Milda R.
    Abstract:
    Evidence suggests that western juniper (Juniperus occidentalis) in Central Oregon affects understory production and composition. As trees increase in size and density, understory production is reduced and composition changes. This study was designed to identify the relationship between production and composition of understory vegetation and various tree canopy sizes of...
    Resource Type:
    Masters Thesis
    Full Text:
    members Drs. Steve Sharrow and Ludwig Eisgruber for their constructive criticism and valuable advice

  • Understory vegetation response and nitrogen cycling following cutting of western juniper

    Creator:
    Bates, Jonathan D.
    Abstract:
    Since the late 1880's western juniper has expanded in range and increased in density in sagebrush-bunchgrass, riparian, and forested plant communities of the Pacific Northwest. Succession to western juniper woodland has been shown to reduce the productivity and diversity of the understory component, result in concentration of soil nutrients beneath...
    Resource Type:
    Dissertation
    Full Text:
    , Ludwig Eisgruber, Richard Waring, and Paul Doescher for their interest, constructive criticism, and