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| Home > services > EDW > EDW_HistoricalWoodlandsDensity_01 (MapServer) > Historical Woodland Density of the Conterminous United States, 1873 > iteminfo | API Reference |
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| accessInformation: | If you use these data in a publication, presentation, or other product please use the citation below to credit the authors for their contribution to your work. (Please see metadata document's section on use constraints for more details on any additional considerations.) Liknes, Greg C.; Nelson, Mark D.; Kaisershot, Daniel J. 2013. Historical woodland density of the conterminous United States, 1873. Newtown Square, PA: USDA Forest Service, Northern Research Station. http://dx.doi.org/10.2737/RDS-2013-0006 |
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| description: | This dataset includes polygons with a minimum of 40 acres of woodlands per square mile as depicted in William H. Brewer’s 1873 map of woodland density and covers the conterminous United States. Each polygon has been labeled with the density category (1-5) depicted on the original map. This dataset was created by georeferencing a scanned version of the source map and by heads-up digitizing each woodland density polygon. |
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| title: | Historical Woodland Density of the Conterminous United States, 1873 |
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| culture: | en-US |
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