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Filtering by: Creator Coniferous Forest Biome Modeling Group Remove constraint Creator: Coniferous Forest Biome Modeling Group Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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  • The forest and the mainframe : the dynamics of modeling and field study in the Coniferous Forest Biome, 1969-1980

    Creator:
    Long, Tulley A.
    Abstract:
    In an initial research proposal of December 1969, the scientists of the Coniferous Forest Biome (CFB), an ecosystem study centered in the Pacific Northwest and part of the larger International Biological Programme (IBP), expressed optimism that computer simulations and systems modeling could transform empirical knowledge of the carbon, water, and...
    Resource Type:
    Masters Thesis
    Full Text:
    Ma nframe: The Dynamics of Modeling and Field Study in the Coniferous Forest Biome, 1969-1980

  • Foliar respiration in an old-growth coniferous forest

    Creator:
    Cooper, Clifton E.
    Abstract:
    Foliar respiration forms a large component of the carbon balance of any coniferous forest. We examine seasonal, interannual, spatial and interspecific variation of foliar maintenance respiration in a forest in Washington, USA, with measurements made quarterly for >4 years on 400-year old trees of Pseudotsuga menziesii, Tsuga heterophylla and Thuja...
    Resource Type:
    Dissertation
    Full Text:
    Respiration in an Old-Growth Coniferous Forest. Abstract approved: Foliar respiration forms a large

  • Dry coniferous forests in the Western Oregon Cascades

    Creator:
    Means, Joseph E.
    Abstract:
    Pseudotsuga menziesii dominates the forests of the Pacific Northwest. But though it is dominat, Tsuaa heteroohylla or Abies amabilis is usually climax. Many researchers have studied Pseudotsuga on the widespread mesic sites where it is seral, but few have examined the relatively rare ecosystems in which Pseudotsuga or its associate...
    Resource Type:
    Dissertation
    Full Text:
    variation in plant moisture stress on dry and modal H.J. Andrews reference stands 13 Dry coniferous forest

  • Overstory density and disturbance impacts on the resilience of coniferous forests of western Oregon

    Creator:
    Neill, Andrew R.
    Abstract:
    A trait based approach was used to assess impacts of overstory density and thinning on understory vegetation components related to wildlife habitat. The relationship between overstory basal area and understory vegetation for species grouped by traits, such as production of flowers, fleshy-fruit and palatable leaves, was characterized in thinned and...
    Resource Type:
    Masters Thesis
    Full Text:
    ABSTRACT OF THE THESIS OF Andrew R. Neill for the degree of Master of Science in Forest Science

  • Homogenization of Detrital Leachate in an Old-Growth Coniferous Forest, OR : DOC Fluorescence Signatures in Soils Undergoing Long-Term Litter Manipulations

    Creator:
    Strid, April R.
    Abstract:
    Soil dissolved organic carbon (DOC) is a small but crucial part of the forest carbon cycle. Characterizing the relationship between detrital inputs and soil DOC chemistry is crucial to understanding the ultimate fate of root carbon, fallen wood and needles. Chemical differences in the DOC pool may help to explain...
    Resource Type:
    Masters Thesis
    Full Text:
    : Homogenization of Detrital Leachate in an Old-Growth Coniferous Forest, OR: DOC Fluorescence Signatures in

  • Using soil data to enhance modeling of forest responses to climate change

    Creator:
    Peterman, Wendy L.
    Abstract:
    The over-arching theme of this work is that soil data affect the performance and realism of vegetation models with particular focus on their ability to predict or explain disturbances such as fire or disease. We tested the sensitivity of the Excel version of the 3-PG model to soil properties and...
    Resource Type:
    Dissertation
    Full Text:
    : Using Soil Data to Enhance Modeling of Forest Responses to Climate Change. Abstract approved

  • The use of remote sensing for characterizing forests in wildlife habitat modeling

    Creator:
    Vogeler, Jody C.
    Abstract:
    Spatially explicit maps of habitat relationships have proven to be valuable tools for conservation and management applications including evaluating how and which species may be impacted by large scale climate change, ongoing fragmentation of habitat, and local land-use practices. Studies have turned to remote sensing datasets as a way to...
    Resource Type:
    Dissertation
    Full Text:
    FOR CHARACTERIZING FOREST IN WILDLIFE HABITAT MODELING CHAPTER 1: INTRODUCTION Understanding

  • Development of a hybrid modeling framework for intensively managed Douglas-fir plantations in the Pacific Northwest

    Creator:
    Weiskittel, Aaron R.
    Abstract:
    Forest growth models in the Pacific Northwest are predominantly empirical. Predictions of yield under alternative silvicultural regimes cannot rely completely on field trials; yet empirical growth models are often inadequate for extrapolating untested regimes and genotypes. The limitations of current models include (1) long time-steps (e.g. 5-10 years); (2) insufficient...
    Resource Type:
    Dissertation
    Full Text:
    forest nutrition (Kimmins, 1985). The hybrid modeling approach may be an important advancement in

  • Modeling sage-grouse habitat using a state-and-transition model

    Creator:
    Evers, Louisa
    Abstract:
    Habitat for wildlife species that depend on sagebrush ecosystems is of great management concern. Evaluating how management activities and climate change may affect the abundance of moderate and high-quality habitat necessitates the development of models that examine vegetation dynamics, but modeling tools for rangeland systems are limited. I developed state-and-transition...
    Resource Type:
    Dissertation
    Full Text:
    presented on November 9, 2010. Title: Modeling Sage-Grouse Habitat Using a State-and-Transition Model

  • The effects of forest fuel reduction on fire severity and long-term carbon storage

    Creator:
    Mitchell, Stephen Richard
    Abstract:
    Two forest management objectives being debated in the context of federally managed landscapes in the US Pacific Northwest involve a perceived trade-off between fire restoration and C sequestration. The former strategy would reduce fuel (and therefore C) that has accumulated through a century of fire suppression and exclusion that has...
    Resource Type:
    Dissertation
    Full Text:
    characteristics are summarized in Table 2.2. Modeling All simulations used version 4.1.2 of the Biome-BGC