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    <dct:description>This map layer is a grid map of the conterminous United States, created from National Land Cover Data (NLCD). The NLCD data was reclassified into four categories: forest, other natural (e.g. grassland, wetland, etc.), human land use (e.g. agriculture, urban, etc.), and nodata (water, ice and snow, and bare rock/sand). A 9 x 9-pixel moving window was then used to generate forest edge measurements for every pixel, regardless of its class. Within each window, the edges of all forest pixels were examined to determine what type of land cover shared each edge. Three new grids were created, one for each edge type (forest-forest, forest-natural, and forest-human). The values in these grids were calculated as the number of edges with the appropriate type in the window divided by the total number of forest edges, regardless of neighbor. These grids represented forest connectivity (forest-forest edges), naturally caused forest fragmentation (forest-natural edges), and human caused forest fragmentation (forest- human edges). In the map, forest connectivity is displayed in green, natural fragmentation in blue, and human fragmentation in red. Yellow indicates areas that are an approximately equal mix of connected forest and human fragmentation, while cyan indicates areas that are an approximately equal mix of connected forest and natural fragmentation. Black represents areas with no forest in the 9 x 9-pixel window; white represents ignored or nodata areas, such as water, ice and snow, and bare rock/sand. The data available through the National Atlas of the United States are in GeoTIFF format.</dct:description>
        <dcat:keyword>fragmentation</dcat:keyword>
        <dcat:keyword>biodiversity</dcat:keyword>
        <dcat:keyword>usa</dcat:keyword>
        <dcat:keyword>land cover</dcat:keyword>
        <dcat:keyword>united states</dcat:keyword>
        <dcat:keyword>forest</dcat:keyword>
        <dcat:keyword>landscape</dcat:keyword>
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    <rdfs:label>causes-of-forest-fragmentation-in-the-united-states-1-kilometer-resolution-direct-download</rdfs:label>
    <dct:identifier>causes-of-forest-fragmentation-in-the-united-states-1-kilometer-resolution-direct-download</dct:identifier>
    <dct:title>Causes of Forest Fragmentation in the United States ? 1 Kilometer Resolution - Direct Download</dct:title>
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            <dcat:Distribution>
                <dcat:accessURL rdf:resource="http://nationalatlas.gov/atlasftp.html?openChapters=chpbio#chpbio"></dcat:accessURL>
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            <rdfs:label>responsible-party</rdfs:label>
            <rdf:value>[{"name": "U.S. Environmental Protection Agency", "roles": ["pointOfContact"]}]</rdf:value>
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            <rdfs:label>contact-email</rdfs:label>
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          <rdf:Description>
            <rdfs:label>metadata-language</rdfs:label>
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          <rdf:Description>
            <rdfs:label>licence</rdfs:label>
            <rdf:value>["Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made by the U.S. Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S. Geological Survey, U.S. Environmental Protection Agency, or U.S. Forest Service in the use of these data."]</rdf:value>
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            <rdfs:label>access_constraints</rdfs:label>
            <rdf:value>["Use Constraints: None. Acknowledgment of the National Atlas of the United States of America, the U.S. Environmental Protection Agency, the U.S. Forest Service, and (or) the U.S. Geological Survey would be appreciated in products derived from these data.", "Access Constraints: None"]</rdf:value>
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            <rdf:value>1997-2014 Edition of The National Atlas of the United States</rdf:value>
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