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 80 for “"Surface mining"”.
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How does surface mining impact surrounding miombo woodland bird communities?
… past exploitation, this has led to a surge in mining investment and development over the past few decades. Mining negatively impacts biodiversity in numerous ways. One hotspot of mining activity in Africa is the Central African Copperbelt, which contains vast copper reserves and half of global …
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An Improved Model for Prediction of PM10 from Surface Mining Operations
… are required for the construction of all new surface mining operations. An air quality permit requires a surface mining operation to estimate the type and amount of pollutants the facility will produce. During surface mining the most common pollutant is particulate matter having an aerodynamic …
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An Interactive Digital Manual For Safety Around Conveyor Belts In Surface Mining
Belt conveyor accidents are mainly attributed to negligence of safety procedures during maintenance work. Entanglement, falling from heights, & collapse of structure or loose materials are the main cause of accidents. While performing maintenance tasks such as cleaning, installation and repair, …
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Soil based vegetation productivity modeling for a northern Michigan surface mining region
… PRODUCTIVITY MODELING FOR A NORTHERN MICHIGAN SURFACE MINING REGIONByDustin L. CorrThe proliferation of mined landscapes and concern for the environmental impacts associated with these lands have led to an increased interest in developing empirical predictive models to quantitatively assess the …
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Maternal Residential Proximity to Central Appalachian Surface Mining and Adverse Birth Outcomes
… of exposure. Spatiotemporal characterizations of surface mining boundaries in Central Appalachia between 1986-2015 were developed using Landsat data. The maternal address field on births records from VA, WV, KY, and TN were geocoded and assigned amount of surface mining within a 5km radius of …
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Non-Game Bird habitat Associated With Haul Roads and Surface Mining for Bentonite Clay
… diversity of birds in relation to distance from mining haul roads and various aged mine spoils. Winter bird surveys and breeding bird counts were conducted during 1977 and 1978. Bird density and diversity were estimated and compared between the following habitat areas: old spoils (mined ≥20 years …
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The Importance Of Surface Mining As A Landscape Variable In Shaping Wild Bee Communities In Central Appalachian Forests
… in Southeastern Kentucky, U.S.A. where surface mining for coal is common. Data was analyzed using generalized linear mixed-effect models to detect the most important landscape scale variables, including mining, in shaping bee communities. Bee species richness was significantly lower on …
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Planning and economic impact analysis of the Surface Mining Control and Reclamation Act on strip mining in Colorado, A
Includes bibliographical references.
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Examining the Modifiable Areal Unit Problem: Associations Between Surface Mining and Birth Outcomes in Central Appalachia at Multiple Spatial Scales
… This study examines associations between surface mining and birth outcomes from 1989 to 2015 in Central Appalachia at the individual; postal; county; and county-sized, non-administrative scales. Evidence from previous studies suggests associations exist between health outcomes and …
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The status and seasonal dynamics of fish and benthic invertebrate populations in relation to organic and inorganic material inputs and surface mining impacts in three Virginia headwater streams
Study of two streams impacted by surface-mining and a similar unimpacted reference stream demonstrated that alkalinity, conductivity, hardness, and sulfate were elevated in the former despite reclamation treatment of the watersheds three to five years earlier. The mined-watershed streams carried a …
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Woody Species Diversity, Forest and Site Productivity, Stumpage Value, and Carbon Sequestration of Forests on Mined Lands Reclaimed Prior to the Passage of the Surface Mining Control and Reclamation Act of 1977
The present state of forestry post mining land uses has prompted concern among researchers, landowners, and the public. Surface mines reclaimed to forests under the provision of the Surface Mining Control and Reclamation Act (SMCRA) may not achieve site productivity levels required by the law. …
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Images and Voices from the Cumberland Mountains: Surface Coal Mining and the Evolution of Appalshop's Documentary Activism.
… workshop in Whitesburg, Kentucky, has been examining social, economic, and environmental issues important to the people of Appalachia. Appalshop’s goal has always been to give a voice to a community that is often stereotyped and misunderstood by the media. Since its creation, Appalshop has …
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Opportunities for improved surface mine reclamation in the central Appalachian coal region
The Appalachian coal mining region is subject to a number of environmental and economic problems; many are a result of the steeply sloping topography. The extensive surface mining activities in the area appear to offer the opportunity to produce more favorable landforms at minimum marginal costs. …
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Analyses of coal extraction and spoil handling techniques in mountainous areas
Surface mining of multiple seams by mountaintop mining methodology is complex in the Appalachian region of West Virginia. Mining operations in these mountainous areas can be considered as customized forms of surface mining techniques. The customization of the mining methods is greatly dominated by …
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An integrated computer simulator for surface mine planning and design
… operators to develop mathematical models for surface mining which can estimate mining costs before the actual mining begins. The problem becomes even more acute with the new reclamation laws, as they affect surface coal mining methods, productivity, and costs. This study presents a computer …
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Study of truck allocation and truck dispatching problems in open pit mines
… prices for mineral products, have forced mining companies to find ways to improve efficiency and lower production costs. Given the fact that loading and hauling operations account for up to 60 % of the total costs in surface mining, the optimization and control of these operations can …
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Soil productivity model to assess forest site quality on reclaimed surface mines
The Surface Mining Control and Reclamation Act (SMCRA) of 1977 requires that mine operators reclaim mined land to achieve productivity levels equal to or greater than premined conditions. Presently, the standard for evaluating reforestation success is based solely on tree-seedling survival. This …
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Macroinvertebrate communities inhabiting surface mine wetlands of southwestern Virginia
… because of formation of wetlands on relic surface mine benches. Prior to the Surface Mining Control and Reclamation Act of 1977 (PL 95-87) once mining operations were completed the sites were abandoned. These areas presented novel landscapes in the rugged Allegheny Plateau physiographic …
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An analysis of the development, the problems and proposed statutory regulations for strip coal mining.
… replaced by the claimed safer practices of strip mining. National attention was focused on strip coal mining in the 1960's with emphasis on the Appalachian Region. Rapidly increasing electrical demands from coal-fired generators have recently propelled strip mining into the western states where 77 …
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Pre-mining hydrologic analysis using modeling and geographic information system technology
Surface mining activities are known to affect the quantity and quality of stormwater runoff. This can create flooding and water quality degradation of receiving streams. The Surface Mining Control and Reclamation Act (SMCRA) of 1977 provides regulations intended to produce environmentally …
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