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    Author(s): Mark D. NelsonKurt H. RiittersJohn W. CoulstonGrant M. DomkeEric J. GreenfieldLinda L. LangnerDavid J. NowakClaire B. O'DeaSonja N. OswaltMatthew C. ReevesDavid N. Wear
    Date: 2020
    Source: Gen. Tech. Rep. NRS-191.
    Publication Series: General Technical Report (GTR)
    Station: Northern Research Station
    PDF: Download Publication  (4.0 MB)

    Description

    The Resources Planning Act (RPA) Assessment uses a combination of land use and land cover data to evaluate trends in the United States land base and project future changes. This publication describes how the RPA Assessment uses the National Resources Inventory, National Land Cover Database, and Forest Inventory and Analysis to support analyses of forest trends. The authors compare and contrast differences in definitions and approaches of these three major data sources and document the recent status and trends of land use and land cover area according to these sources. While the general definitions of land uses and land covers are superficially similar among these sources, understanding the conceptual and technical differences between them is necessary to evaluate and compare trends in the U.S. land base. Some differences can be rationalized based on the sensitivity of the different databases to the underlying drivers of landscape change over time. However, the major difference is the perception of the land base in terms of its intended human use versus its current biophysical cover. The RPA Assessment will continue to use both land use and land cover data separately and in combination because each source offers both unique and complementary perspectives on land base trends.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Nelson, Mark D.; Riitters, Kurt H.; Coulston, John W.; Domke, Grant M.; Greenfield, Eric J.; Langner, Linda L.; Nowak, David J.; O'Dea, Claire B.; Oswalt, Sonja N.; Reeves, Matthew C.; Wear, David N. 2020. Defining the United States land base: a technical document supporting the USDA Forest Service 2020 RPA assessment. Gen. Tech. Rep. NRS-191. Madison, WI: U.S. Department of Agriculture, Forest Service, Northern Research Station. 70 p. https://doi.org/10.2737/NRS-GTR-191.

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    Keywords

    RPA Assessment, land use, land cover, forest land use, forest land

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https://www.fs.usda.gov/treesearch/pubs/59691