Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 52 for “"forest health"”.
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Characteristics and Perceptions of Cost-share Funding for Emerald Ash Borer Mitigation in Virginia Urban Areas
Since most invasive forest pests first establish in urban areas, detection and containment of these pests within cities is important to the health of all forests. While the emerald ash borer (EAB) (Agrilus planipennis Fairmaire) has proved difficult to contain, efforts continue to mitigate the …
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Development and assessment of remotely derived variables in current southern pine beetle (Dendroctonus frontalis Zimm.) hazard mapping in North Carolina, USA
… frontalis Zimm.) is one of the most destructive forest insect pests in the southeastern United States and has historically had a large impact on the forests of North Carolina. Many characteristics of a forest can contribute to SPB susceptibility including stand density, growth rate, age, soil …
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Crises unwasted: how policy entrepreneurs linked forest biomass to energy security in Colorado, 1998-2013
Colorado's forests are facing threats from wildfires, insect and disease epidemics and human encroachment. At the same time, Coloradans are facing energy security problems from fossil fuel price volatility, unintended consequences from continued fossil fuel dependence, problematic alternative, …
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Climate Adaptation and Local Narratives: Using qualitative inquiry to inform adaptive management on the North Shore of Lake Superior Minnesota, USA
… convergence around the attribution of changes in forest health and wildlife populations to climate change, but divergence around when to be concerned for local impacts. Findings indicate the need to ground local adaptation in observable changes, and the importance of facilitating stakeholder …
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Insect-Induced Forest Disturbance Impacts on Select Water Quality Parameters in a Closed Drinking Water Reservoir
Biotic forest health conditions, inputs of abiotic factors and timing of precipitation and river inflows impact drinking water reservoirs. Natural organic matter (NOM) directly impacts water treatment process effectiveness and is identified as an emerging contaminant of concern. Few studies have …
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Utilizing Electrical Geophysical Methods to Map Mycorrhizal Mycelium Networks Non-Invasively
… mycelium networks are a key component to forest health. These networks act as a transportation system for nutrients, are major players in carbon and nitrogen cycling, and can provide some level of drought resistance to the surrounding flora. Due to the location and size of these network’s …
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A REVIEW OF APPEALS AND LITIGATION OVER TIMBER SALES BETWEEN 1999 AND 2008 ON THE LOLO NATIONAL FOREST
… appeals over timber sales on the Lolo National Forest for the years 1999 thru 2008 revealed that of the 157 timber sales that could have been appealed or litigated, 27%, representing 55% of the timber volume in all the reviewed sales, had some form of appeal or litigation.. The categories of …
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A REVIEW OF APPEALS AND LITIGATION OVER TIMBER SALES BETWEEN 1999 AND 2008 ON THE LOLO NATIONAL FOREST
… appeals over timber sales on the Lolo National Forest for the years 1999 thru 2008 revealed that of the 157 timber sales that could have been appealed or litigated, 27%, representing 55% of the timber volume in all the reviewed sales, had some form of appeal or litigation.. The categories of …
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Planning for small forest landscapes: facilitating the connection between people and nature
A significant area of forest land in the United States is held by a diverse group of people known by the US Forest Service as family forest owners. Surveys reveal that family forest owners own forest land for a variety of reasons including scenery, nature protection, recreation, privacy, timber …
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Foliar Herbivory on Understory Oaks as a Function of Forest Type and Prescribed Burning
… has not been well characterized in Ozark forests, but may be a critical variable affecting current and future forest health. This study quantified loss of oak seedling and sapling leaf area to insect herbivores in recently burned or unburned Ozark forest and savanna habitat. In addition, I …
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Estimating Aboveground Biomass (AGB) Throughout the Pacific
… biomass (AGB) is a significant carbon pool in forests, making AGB a good indicator of forest health and carbon storage. AGB has been studied on multiple scales, in which allometric equations were developed to find relationships between AGB and tree parameters. However, despite the presence of …
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PILOT STUDY ON THE PREDICTION OF HEART ROT IN APPARENTLY SOUND WESTERN LARCH
… and Roberts Fire burns with data from the USFS Forest Health Protection’s 10-year western larch (Larix occidentalis) merchantability study on the 2001 Moose Fire burn, all collected on the Flathead National Forest. We used dissection data from 284 apparently defect-free fire-killed western larch …
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PILOT STUDY ON THE PREDICTION OF HEART ROT IN APPARENTLY SOUND WESTERN LARCH
… and Roberts Fire burns with data from the USFS Forest Health Protection’s 10-year western larch (Larix occidentalis) merchantability study on the 2001 Moose Fire burn, all collected on the Flathead National Forest. We used dissection data from 284 apparently defect-free fire-killed western larch …
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Deforestation and the Transformation of the Landscape of North China: prehistory - present
… ago North China was primarily a lush deciduous forest. Like many other regions of the planet, this landscape has been dramatically transformed by human activity, yet unusually this mostly occurred long ago under pre-industrial conditions. Fortunately China has a long recorded history of human …
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Forest Mortality in Lake Tahoe Basin from 1985-2010: Influences of Forest Type, Stand Density, Topography and Climate
Widespread and synchronous outbreaks of forest mortality during the 1990s and continuing to present day have drastically altered millions of hectares of forestlands from Mexico to Alaska (Bentz 2009). Tree mortality is a complex process with a variety of both exogenous and endogenous factors …
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Sampling strategies for forest aerial detection survey in Colorado
… survey (ADS) has been commonly employed in forest surveys in the United States for detecting forest damage and monitoring forest health. In Colorado, ADS by USDA Forest Service has conducted annual 100% census of government forested land for more than 20 years with the goal of achieving …
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Methods for the spatial modeling and evalution of tree canopy cover
Tree canopy cover is an essential measure of forest health and productivity, which is widely studied due to its relevance to many disciplines. For example, declining tree canopy cover can be an indicator of forest health, insect infestation, or disease. This dissertation consists of three studies, …
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CONSEQUENCES OF ALTERED BURN REGIMES ON PLANT COMMUNITY DIVERSITY IN THE PINEYWOODS OF EAST TEXAS
… fire return intervals is vital to restoring forest health, species diversity, natural succession regimes, and reduction of some invasive species. Studies on the effect of fire frequencies on southern pine understory plant communities have revealed increased plant diversity and richness in …
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