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The "Broad-scale assessment of biophysical features in Colorado: Terrestrial development index using 5-kilometer moving window" raster dataset quantifies levels of development (urban, agriculture, energy and mineral extraction and transmission, and roads and railroads) for all lands in Colorado. The terrestrial development index (TDI) represents the total percentage of the estimated surface disturbance footprint from development within a 5-kilometer (km) radius moving window. The TDI scores range from 0 to 100 percent. Methods are described in the companion report (see "Larger Work" section).
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Landscape intactness has been defined as a quantifiable estimate of naturalness measured on a gradient of anthropogenic influence. We developed a multiscale index of landscape intactness for the Bureau of Land Management’s (BLM) landscape approach, which requires multiple scales of information to quantify the cumulative effects of land use. The multiscale index of landscape intactness represents a gradient of anthropogenic influence as represented by development levels at two analysis scales. To create the index, we first mapped the surface disturbance footprint of development, for the western U.S., by compiling and combining spatial data for urban development, agriculture, energy and minerals, and transportation...
The Terrestrial Development Index (TDI) quantifies the level of development (urban, agriculture, energy and mineral extraction and transmission, and transportation) based on the surface disturbance footprint. TDI values range from 0 to 100% and represent the total percentage of land surface occupied by the development footprint within a 1-kilometer (km) radius moving window.
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Information on the biophysical features of federal lands identified as suitable for transfer to the State of Colorado was requested by the Bureau of Land Management (BLM). This information is intended for use in conducting an environmental assessment prior to transfer of ownership (conveyance) to the State. The Enabling Act of 1864 provided for the conveyance of federal lands to the State for the support of schools. If designated lands were unavailable for transfer at the time of statehood, the Act provided for the transfer of alternative federal lands in compensation, using a process referred to as “school-land indemnity selection.” To initiate indemnity selection, the Colorado State Board of Land Commissioners...
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Information on ecological communities, soil salinity, and land use was synthesized and summarized for all lands in Colorado. This biophysical information was requested by the Bureau of Land Management (BLM) for use in conducting an environmental assessment prior to the transfer of ownership (conveyance) of federal lands to the State of Colorado. The Enabling Act of 1864 provided for the conveyance of federal lands to the State for the support of schools. If designated lands were unavailable for transfer at the time of statehood in 1875, the Act provided for the transfer of alternative federal lands in compensation, using a process referred to as “school-land indemnity selection.” To initiate indemnity selection,...
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The "Broad-scale assessment of biophysical features in Colorado: Terrestrial development index using 1-kilometer moving window" raster dataset quantifies levels of development (urban, agriculture, energy and mineral extraction and transmission, and roads and railroads) for all lands in Colorado. The terrestrial development index (TDI) represents the total percentage of the estimated surface disturbance footprint from development within a 1-kilometer (km) radius moving window. The TDI scores range from 0 to 100 percent. Methods are described in the companion report (see "Larger Work" section).


    map background search result map search result map A Multiscale Index of Landscape Intactness for the Western United States Broad-scale assessment of biophysical features in Colorado Broad-scale assessment of biophysical features in Colorado: Terrestrial development index using 1-kilometer moving window Broad-scale assessment of biophysical features in Colorado: Terrestrial development index using 5-kilometer moving window Biophysical assessment for indemnity selection of federal lands in Colorado Terrestrial Development Index for the western United States:1-kilometer moving window Broad-scale assessment of biophysical features in Colorado Biophysical assessment for indemnity selection of federal lands in Colorado Broad-scale assessment of biophysical features in Colorado: Terrestrial development index using 1-kilometer moving window Broad-scale assessment of biophysical features in Colorado: Terrestrial development index using 5-kilometer moving window A Multiscale Index of Landscape Intactness for the Western United States Terrestrial Development Index for the western United States:1-kilometer moving window