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Geographic Information Systems (GIS) provide the means for storing, querying, analyzing, correlating, modeling, and displaying digital cartographic data, remotely sensed imagery, and geographically referenced field survey and sampling data. In the business of managing public lands, the BLM collects and utilizes this data as it relates to or describes a piece of land and the resources on and under it. Data might be information about bird nesting sites or wild horse herd use areas. It might be legal land survey information or legal descriptions of land parcels. Real-time fire progression maps and maps-on-demand are two other customer products developed from this data. The common thread is that this information...
The timely development of the nation's energy production capacity in a manner that minimizes potential adverse local and regional impacts associated with energy facilities requires the use of sophisticated techniques for evaluation of siting alternatives and fuel cycle options. This report is a documentation of the computerized SITE methodology that has been developed for evaluating health, environmental, and socioeconomic impacts related to utilization of alternate sites for energy production within a region of interest. The cost, impact, and attribute vectors, which are generated and displayed on density maps, can be used in a multiparameter overlay process to identify preferable siting areas. The assessment of...
The timely development of the nation's energy production capacity in a manner that minimizes potential adverse local and regional impacts associated with energy facilities requires the use of sophisticated techniques for evaluation of siting alternatives and fuel cycle options. This report is a documentation of the computerized SITE methodology that has been developed for evaluating health, environmental, and socioeconomic impacts related to utilization of alternate sites for energy production within a region of interest. The cost, impact, and attribute vectors, which are generated and displayed on density maps, can be used in a multiparameter overlay process to identify preferable siting areas. The assessment of...
Large deposits of recoverable lignite (> 16 billion tons) occur in parts of Alabama, Arkansas, Louisiana, Mississippi, and Texas. Commercial surface mining of these reserves has occurred only in eastern Texas, but additional mining has been proposed for Texas and the other states during the 1980's. Almost all of the new mining would occur in the Southeastern Mixed Forest· (Pineywoods) ecoregion, and the Prairie Parkland ecoregion of eastern Texas. Potential impacts on fish and wildlife will be lessened because of the enactment of the Surface Mining Control and Reclamation Act of 1977 (P.L. 95·87) and the permanent program regulations. However, major impacts on fish. and wildlife may still occur as a result of habitat...
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The rapidly increasing demands being placed on our deserts points to the urgent need for a connectivity assessment that spans multiple jurisdictional boundaries and promotes the partnerships needed to implement a regional conservation strategy for this diverse and striking landscape. The vast scale of renewable energy developments proposed in the California deserts are likely to impact habitat connectivity, alter essential ecosystem functions, and eliminate opportunities for species to shift their ranges in response to climate change. The potential impacts of energy development on our existing public lands, specifically to wildlife and their ability to move across the landscape, are enormous. The primary goal of...
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REAs synthesize the best available information about resource conditions and trends within an ecoregion. They highlight and map areas of high ecological value, including important wildlife habitats and corridors, and gauge their potential risks from climate change, wildfires, invasive species, energy development, and urban growth. REAs also map areas that have high energy development potential, and relatively low ecological value, which could be best-suited for siting future energy development. In addition, REAs establish landscape-scale baseline ecological data to gauge the effect and effectiveness of future management actions. The Mojave Basin and Range REA was initiated in July 2010. It has been completed and...
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The North American Environmental Atlas is an interactive mapping tool to research, analyze and manage environmental issues in Canada, United States and Mexico. Maps are downloadable free of charge and available in an easy to use map viewer format. The CEC uses maps in the Atlas to: •Identify priority areas to conserve biodiversity •Track cross-border transfers of pollutants •Monitor CO2 emissions across major transportation routes •Predict the spread of invasive species
map background search result map search result map Mojave Basin and Range Rapid Ecoregional Assessment (REA) North American Environmental Atlas A Linkage Network for the California Deserts Bureau of Land Management Arizona Geospatial Data and Metadata Mojave Basin and Range Rapid Ecoregional Assessment (REA) A Linkage Network for the California Deserts Bureau of Land Management Arizona Geospatial Data and Metadata North American Environmental Atlas