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  • Freeze-thaw cycles in permafrost soils and their impacts on the climate: A literature review

    Creator:
    Bergmann, Maya K.
    Abstract:
    Climate change is occurring at an increasingly rapid rate, with impacts heightened in the cold regions of the world including the Arctic. Warming effects are widespread, with one impacted process – freeze-thaw cycles – increasing in frequency and potentially triggering additional changes in permafrost soils that have previously acted as...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Jeffery A. Hatten, Committee Member, representing Department of Forest Engineering, Resources

  • Relationship of Soil Type and Burn Severity to Post-Fire Vegetation Response

    Creator:
    Maclennan, Audrey
    Abstract:
    Public lands in the Pacific Northwest are managed for multiple uses including timber production, recreation and aesthetic value, maintaining wildlife habitat, conserving native species, and carbon storage. Wildfires impact large areas encompassing broad environmental conditions. Interactions among underlying environmental gradients and alteration of overstory competition by fire of varying severities...
    Resource Type:
    Masters Thesis
    Full Text:
    by fire of varying severities often leads to a diverse vegetation response in the post-fire

  • Exploring Soil-Landscape Relationships on the Pacific Slope of Monteverde, Costa Rica

    Creator:
    Hesson, Kevin M.
    Abstract:
    Landscape positions have been used to determine soil properties. My soil study in Monteverde on the Pacific slope of Costa Rica was designed to examine soil-landscape relationships for sites with various land use histories and management. Soil pits were dug at Nacimiento y Vida, Crandell, Curi-cancha, La Calandria, and Finca...
    Resource Type:
    Masters Thesis
    Full Text:
    as a result, analysis should be done individually. There were a few significant relationships that

  • Ecosystem Photosynthesis and Forest-Atmosphere Interactions Inferred from Carbonyl Sulfide

    Creator:
    Rastogi, Bharat
    Abstract:
    An increase in anthropogenic activities since the industrial revolution, primarily due to burning of fossil fuels and changes in land cover, has resulted in a steady increase in the global mean atmospheric CO2 concentrations. While there is unequivocal scientific evidence on global warming and its multidimensional impacts on natural and...
    Resource Type:
    Dissertation
    Full Text:
    revolution, primarily due to burning of fossil fuels and changes in land cover, has resulted in a steady

  • Experiments and Observations on How Changes in Riparian Forests Affect Light and Stream Ecosystems

    Creator:
    Swartz, Allison G.
    Abstract:
    Riparian zones are ecotones between terrestrial and aquatic ecosystems. Processes in streams are strongly influenced by riparian forest communities, age, stage and structure. Temperate forests across much of North America, including riparian areas, are recovering from historic land clearing with many stands in the stem-exclusion phase of development in which...
    Resource Type:
    Dissertation
    Full Text:
    development in which a high density of young or early-mature trees create a single uniform canopy. This