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Filtering by: Subject Beetles -- Northwest, Pacific Remove constraint Subject: Beetles -- Northwest, Pacific Advisor Harmon, Mark E. Remove constraint Advisor: Harmon, Mark E. Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Root decomposition in three coniferous forests : effects of substrate quality, temperature, and moisture

    Creator:
    Chen, Hua
    Abstract:
    Controls of substrate quality, temperature, and moisture on woody root decomposition in the Pacific Northwest were explored using chronosequences, time series, laboratory incubations, and simulation modeling approaches at three sites: Cascade Head (CAH), H. J. Andrews (HJA), and Pringle Falls Experimental Forests (PRF). In the chronosequence study, a structural component-oriented...
    Resource Type:
    Dissertation

  • Modeling nitrogen fixation in dead wood

    Creator:
    Hicks, William Thomas
    Abstract:
    A mechanistic simulation model of nitrogen fixation in dead wood was developed to help synthesize knowledge, develop hypotheses, and estimate rates of nitrogen fixation in the Pacific Northwest. In this model nitrogen fixation is directly controlled by log substrate, temperature, moisture, and oxygen content. Respiration and diffusion of oxygen indirectly...
    Resource Type:
    Dissertation