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Articles 31 - 39 of 39
Full-Text Articles in Entire DC Network
Illinois Local Food Systems: A Geospatial Analysis, Abu S. Khan
Illinois Local Food Systems: A Geospatial Analysis, Abu S. Khan
Research Papers
Recently, more attention has been paid to studies of local food systems that are specific to a particular place as a potential solution for providing healthy food, reducing carbon emissions, and promotion of local agriculture sustainability. In the United States, the demands of locally produced foods have increased substantially in recent years. There are several reasons for this increase, including long-distance food transportation’s contribution to greenhouse gas emissions, the community food-security movement, and the increase of negative environmental problems related to large scale agriculture, etc., have contributed to the shift of attention from global food systems to local ones. Moreover, …
Shoreline Evolution: Prince William County, Virginia Potomac River, Occoquan Bay, And Occoquan River Shorelines, Donna A. Milligan, Christine Wilcox, C. Scott Hardaway Jr., Mary C. Cox
Shoreline Evolution: Prince William County, Virginia Potomac River, Occoquan Bay, And Occoquan River Shorelines, Donna A. Milligan, Christine Wilcox, C. Scott Hardaway Jr., Mary C. Cox
Reports
Prince William County is situated along the Potomac River (Figure 1). Through time, the County’s shoreline has evolved, and determining the rates and patterns of shore change provides the basis to know how a particular coast has changed through time and how it might proceed in the future. Along Chesapeake Bay’s estuarine shores, winds, waves, tides and currents shape and modify coastlines by eroding, transporting and depositing sediments.
The purpose of this report is to document how the shore zone of Prince William County has evolved since 1937. Aerial imagery was taken for most of the Bay region beginning that …
Transboundary Political Ecology In The Peru-Brazil Borderlands: Mapping Workshops, Geographic Information, And Socio-Environmental Impacts, David S. Salisbury, A. William Flores De Melo, Pedro Tipula Tipula
Transboundary Political Ecology In The Peru-Brazil Borderlands: Mapping Workshops, Geographic Information, And Socio-Environmental Impacts, David S. Salisbury, A. William Flores De Melo, Pedro Tipula Tipula
Geography and the Environment Faculty Publications
Development, resource, and settlement frontiers inspired by national policies and global demand continue to expand into the international boundary lands of Amazonia. National policies promote development and conservation projects on lands already inhabited and managed. Regional governments are increasingly frustrated by the inadequate and outdated geographic information available to solve overlapping claims and improve planning in sensitive border regions. The resulting combination of inappropriate policies, contested resources, and poor geographic information in the borderlands create impacts not only for national, regional, and local landscapes and livelihoods but also foreign relations due to transboundary effects. This article uses a transboundary political …
Spatial Prioritization For Invasive Plant Management, Abraham Michael Levin-Nielsen
Spatial Prioritization For Invasive Plant Management, Abraham Michael Levin-Nielsen
Theses and Dissertations--Forestry and Natural Resources
Invasive exotic plant species have been recognized as serious threats to ecosystems. Extensive research on invasive exotic plant species has primarily focused on the impacts, characteristics, and potential treatments. Decision tools and management models that incorporate these findings often lack input from managers and have limited use in differing invasion scenarios. Therefore, in this study, I created a scientifically-driven framework that incorporates expert input to prioritize watersheds for management within the Inner Bluegrass region of Kentucky. The widely distributed invasive exotic plant Amur honeysuckle (Lonicera maackii) was used as an example species. The framework is built around the Analytic Hierarchy …
Analysis Of Abundance And Biodiversity Of Mosquitoes And Their Epidemiological Implications In Three Urban Neighborhoods In The Southeastern United States, Erick Xavier Caamano
Analysis Of Abundance And Biodiversity Of Mosquitoes And Their Epidemiological Implications In Three Urban Neighborhoods In The Southeastern United States, Erick Xavier Caamano
All ETDs from UAB
Birmingham, Alabama has experienced several mosquito-borne epidemics, including Saint Louis encephalitis (SLE) and West Nile virus (WNV). Despite the outbreak of these diseases, the city lacks a mosquito surveillance program that would assist in vector control efforts. In order to assess the possible advantages of implementing a surveillance system for the city, three neighborhoods were chosen for surveys based on the fact that past epidemics have been concentrated in these areas. During the two surveillance years, 2009 had more abundance of mosquitoes and more species variability than the 2010 season. Overall, as abundance of mosquitoes increased in a particular site, …
Applying Gis Metrics To Determine Degree Of Glacial Modification In Mountainous Landscapes, Carl Delbert Swanson Ii
Applying Gis Metrics To Determine Degree Of Glacial Modification In Mountainous Landscapes, Carl Delbert Swanson Ii
All Master's Theses
The ability to quantitatively assess the degree of glaciation in mountainous areas can be a powerful tool in unraveling the evolution of landscapes, and provide key insights in regions where field research is difficult. Here we determine, test, and apply metrics that assess the relative degree of past glacial modification in mountainous landscapes. Results show that slope results can be used to quantitatively assess the degree to which an area is modified by glaciation. In particular, analysis of basins using slope frequency distribution curves and slope vs. elevation plots capture steeper slopes, flatter valley bottoms, cirques, and arêtes of glaciated …
Developing A Geospatial Protocol For Coral Epizootiology, Jennifer Anne Lentz
Developing A Geospatial Protocol For Coral Epizootiology, Jennifer Anne Lentz
LSU Doctoral Dissertations
This dissertation explores how geographic information systems (GIS) and spatial statistics, specifically the techniques used to map, detect, and spatially analyze disease epidemics, could be used to advance our understanding of coral reef health. Given that different types of spatial analysis, as well as different parameter settings within each analysis, can produce noticeably different results, poor selection or improper use of a given technique would likely lead to inaccurate representations of the spatial distribution and false interpretations of the disease. For this reason, I performed a comprehensive review of the following types of exploratory spatial data analysis (ESDA): mapping and …
Identifying Locations Of Highly Eroded Agricultural Land In The Devils Lake Basin, Nd Using Gis Terrain Analysis Modeling, Matthew J. Dinger
Identifying Locations Of Highly Eroded Agricultural Land In The Devils Lake Basin, Nd Using Gis Terrain Analysis Modeling, Matthew J. Dinger
Theses and Dissertations
Soil erosion modeling using terrain analysis holds great potential due to the simplicity of the models, and the ease in running the analysis in a GIS. Terrain analysis of the upper Devils Lake basin was conducted using a 3-meter Light Detection and Ranging-derived digital elevation model. Portions of the Mauvais Coulee and Calio Coulee watersheds in the basin were analyzed to evaluate soil erosion potential and determine if terrain analysis was an accurate tool for modeling erosion in this fairly flat landscape. The analysis used slope, flow accumulation, and stream power index (SPI) within a GIS to identify highly eroded …
A Discourse On Geospatial Technology Applications In Predictive Analytics And Evidence-Based Decision Support For Disaster Research And Management, Steven Matthew Ward
A Discourse On Geospatial Technology Applications In Predictive Analytics And Evidence-Based Decision Support For Disaster Research And Management, Steven Matthew Ward
LSU Doctoral Dissertations
Continued population growth and development in vulnerable locations across the world are creating a new geography of hazards and disasters. Increasing storm frequencies coupled with unrelenting efforts to control flooding through structural means will undoubtedly intensify the intersection between flood hazards and humans. Accordingly, the baseline capacity of places to prepare for and rebound from disaster events adequately is negatively impacted. Hurricane Katrina brought this reality to the forefront of disaster science and management in 2005. Concurrent with the increased awareness of evolving hazardscapes has been the identification of deficiencies in how components of disasters are studied and managed. The …