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Filtering by: Creator Kira, M. Remove constraint Creator: Kira, M. Degree Field Forest Science Remove constraint Degree Field: Forest Science Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • Height-related trends in structure and function of Douglas-fir foliage

    Creator:
    Woodruff, David R.
    Abstract:
    This dissertation investigated the impacts of tree height upon a range of physiological and structural characteristics of Douglas-fir foliage; relationships between structural and functional trends with height; and compensatory mechanisms that mitigate height-related growth constraints. Height-related trends in foliar physiological and anatomical characteristics were examined both within trees as well...
    Resource Type:
    Dissertation
    Full Text:
    MPa m-1)……………………………………………………………….....34 2.2 Leaf osmotic potential at full (filled symbols) and

  • The effects of mechanical damage on residual coastal Douglas-fir (Pseudotsuga menziesii [Mirbel] Franco) following commercial thinning

    Creator:
    Kiser, James D.
    Abstract:
    Commercial thinning operations can result in damage to residual stems. A literature review revealed that little was known about the effects of residual logging wounds with regard to rotation-age commercial conifers, particularly Douglas-fir. An experiment to examine fungal colonization of Douglas-fir following logging damage showed that while damage was significant...
    Resource Type:
    Dissertation
    Full Text:
    Diagram showing the log sections used for the study. The 1.6 m bucked sections were transported back to

  • Analysis of the regional carbon balance of Pacific Northwest forests under changing climate, disturbance, and management for bioenergy

    Creator:
    Hudiburg, Tara W.
    Abstract:
    Atmospheric carbon dioxide levels have been steadily increasing from anthropogenic energy production, development and use. Carbon cycling in the terrestrial biosphere, particularly forest ecosystems, has an important role in regulating atmospheric concentrations of carbon dioxide. US West coast forest management policies are being developed to implement forest bioenergy production while...
    Resource Type:
    Dissertation
    Full Text:
    OF THE DISSERTATION OF Tara M. Hudiburg for the degree of Doctor of Philosophy in Forest Science

  • Vertical structure and aboveground biomass of tropical forests from lidar remote sensing

    Creator:
    Gonçalves, Fabio Guimarães
    Abstract:
    Methods for obtaining accurate, spatially explicit estimates of biomass density in tropical forests are required to reduce uncertainties in the global carbon cycle, and to support international climate agreements and emerging carbon markets. Three-dimensional (3-D) remote sensing techniques sensitive to the vertical structure of vegetation provide a unique opportunity for...
    Resource Type:
    Dissertation
    Full Text:
    ). ................................................ 51 2.10 Stand biomass versus measurement (σM), allometric (σA and σS), and co- location (σC) errors

  • Post-harvest establishment influences ANPP, soil C and DOC export in complex mountainous terrain

    Creator:
    Peterson, Fox S.
    Abstract:
    The link between aboveground net primary productivity (ANPP) and resource gradients generated by complex terrain (solar radiation, nutrients, and moisture) has been established in the literature. Belowground ecosystem stocks and functions, such as soil organic carbon (SOC), dissolved organic carbon (DOC), and belowground productivity have also been related to the...
    Resource Type:
    Dissertation
    Full Text:
    (Topographic Position)) and mg C / m 3 in the light fraction and heavy fraction by soil type

  • Contemporary regional forest dynamics in the Pacific Northwest

    Creator:
    Reilly, Matthew J. (Matthew Justin), 1975-
    Abstract:
    Recent climatic warming trends and increases in the frequency and extent of wildfires have prompted much concern regarding the potential for rapid change in the structure and function of forested ecosystems around the world. Episodes of mortality in wildfires and insect outbreaks associated with drought have affected large areas and...
    Resource Type:
    Dissertation
    Full Text:
    Julia I. Burton. Matthew J. Gregory and Heather M. Roberts provided plot level data summaries used in