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Filtering by: Creator Eskelson, Bianca N. I. Remove constraint Creator: Eskelson, Bianca N. I. Degree Field Forest Resources Remove constraint Degree Field: Forest Resources

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  • Examination of imputation methods to estimate status and change of forest attributes from paneled inventory data

    Creator:
    Eskelson, Bianca N. I.
    Abstract:
    The Forest Inventory and Analysis (FIA) program conducts an annual inventory throughout the United States. In the western United States, 10% of all plots (one panel) are measured annually, and a moving average is used for estimating current condition and change of forest attributes while alternative methods are sought in...
    Resource Type:
    Dissertation
    Full Text:
    . _____________________________________________________________________ Bianca N.I. Eskelson, Author ACKNOWLEDGEMENTS The task is almost done and I

  • Strategies for sampling and estimation of aboveground tree biomass

    Creator:
    Poudel, Krishna Prasad
    Abstract:
    The issue of global climate change and an increasing interest in the reduction of fossil fuel carbon dioxide emissions by using forest biomass for energy production has increased the importance of quantifying forest biomass in recent years. The official U.S. forest carbon reporting is based on the forest biomass estimates...
    Resource Type:
    Dissertation
    Full Text:
    evident in the component biomass estimates. In this dissertation, I assessed the efficiency of different

  • An examination of several methods of quantifying forest structure in headwater riparian forests of western Oregon

    Creator:
    Haxton, Zane A.
    Abstract:
    Headwater streams are generally small, first-order streams that can comprise up to 80% (by stream length) of the drainage network in mountainous areas of the Pacific Northwest. These streams are intimately connected with downstream reaches, serving as a source of sediment, woody debris, organic matter and nutrients. The surrounding forests...
    Resource Type:
    Masters Thesis
    Full Text:
    sincere gratitude to Dr. Bianca Eskelson for her guidance, assistance and good suggestions. Dr. Jim

  • Urban natural parks in Portland : nature, networks, and community health

    Creator:
    Baur, Joshua W. R.
    Abstract:
    Three trends are occurring today in the United States which inspired this research. First, America is growing increasingly urbanized. Today, more Americans are living in cities than in rural environments, and this pattern is predicted to continue for the foreseeable future. Urban living has benefits, but there are also challenges...
    Resource Type:
    Dissertation
    Full Text:
    the appropriate analyses. They include Dr. Alan Acock, Dr. Bianca Eskelson, Dr. Troy Glover, Dr

  • Comparison and analysis of small area estimation methods for improving estimates of selected forest attributes

    Creator:
    Goerndt, Michael E.
    Abstract:
    One of the most common practices regarding estimation of forest attributes is the partitioning of large forested subpopulations into smaller areas of interest to coincide with specific objectives of present and future forest management. New estimators are needed to improve estimation of selected forest attributes in small areas where the...
    Resource Type:
    Dissertation
    Full Text:
    Theresa Marquardt, Nicole Younger, Bianca Eskelson, Tim Drake, Donald Gagliasso, Zane Haxton, and

  • Estimating Forest Inventory Attributes Using Airborne LiDAR in Southwestern Oregon

    Creator:
    Shin, Joonghoon
    Abstract:
    This thesis mainly consists of two parts: (1) comparing statistical modeling methods based on the area-based approach (ABA) for predicting forest inventory attributes using airborne light detection and ranging (LiDAR) data (Chapter 2), and (2) suggesting a new methodology fusing the individual tree detection (ITD) approach and the ABA for...
    Resource Type:
    Masters Thesis
    Full Text:
    and Management Dean of the Graduate School I understand that my

  • Complexity of food web interactions in a large mammal system

    Creator:
    Eisenberg, Cristina
    Abstract:
    Food webs consist of a combination of bottom-up (resource-driven) and top-down (predator-driven) effects. The strength of these effects depends on the context in which they occur. I investigated food web (trophic) relationships between wolf (Canis lupus) predation, elk (Cervus elaphus) herbivory, aspen (Populus tremuloides Michaux) recruitment, and fire. The study...
    Resource Type:
    Dissertation
    Full Text:
    occur. I investigated food web (trophic) relationships between wolf (Canis lupus) predation, elk

  • Accuracy and suitability of several stand sampling methods in riparian zones

    Creator:
    Marquardt, Theresa
    Abstract:
    Stand structure in headwater riparian areas of western Oregon is highly variable making quantification of structural attributes within these stands difficult. A reliable sampling design is important to characterize and monitor changes in stand structure over time. This study examined sixteen alternatives for sampling live conifers and six alternatives for...
    Resource Type:
    Masters Thesis
    Full Text:
    Hailemariam and Paul Anderson for your guidance and direction throughout this project; to Bianca Eskelson

  • Empirical modeling of windthrow occurrence in streamside buffer strips

    Creator:
    Drake, Timothy P.
    Abstract:
    Streamside buffer strips provide numerous benefits to stream ecosystems. The buffer strips create shade, provide shelter for wildlife, act as barriers to logging debris during and after timber harvest, and serve as a continued source of large woody debris. Quantifying woody inputs resulting from windthrow provides managers with estimates for...
    Resource Type:
    Masters Thesis
    Full Text:
    collection; and to Bianca Eskelson for her assistance with statistical analysis and guidance in the writing

  • Estimation and modeling of selected forest metrics with lidar and Landsat

    Creator:
    Strunk, Jacob L.
    Abstract:
    Lidar is able to provide height and cover information which can be used to estimate selected forest attributes precisely. However, for users to evaluate whether the additional cost and complication associated with using Lidar merits adoption requires that the protocol to use lidar be thoroughly described and that a basis...
    Resource Type:
    Dissertation
    Full Text:
    _____________________________________________________________________ Dean of the Graduate School I understand that my dissertation will become a part of