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  "Title": "Potentially Undisturbed Lands",
  "Author": "Pete Bauman, SDSU",
  "Comments": "SDSU employed simple GIS methods primarily utilizing the South Dakota Farm Service Agency\u2019s Common Land Unit (CLU) data layers from 2013, along with 2012 US Department of Agriculture (USDA) National Agriculture Imagery Program (NAIP) county mosaic aerial imagery, to evaluate approximately 22.6 million acres of land in the 44 counties that comprise eastern South Dakota. Mapping of this total project area was done in three distinct project phases from 2014 through 2016. We utilized the CLU data layer, queried to show current and former cropland, to first identify and remove any areas with a cropping history, regardless of current land use. We then employed a step by step analysis to analyze the remaining land in approximately one mi2 sections in order to identify and remove additional historic or current land disturbances. The remaining land tracts were then categorized as potentially \u2018undisturbed grassland\u2019 or \u2018undisturbed woodland\u2019 by simple reason of deduction. Finally, we removed all known water bodies larger than 40 acres as defined by the South Dakota Department of Game, Fish, and Parks\u2019 (SDGFP) Statewide Water Bodies layer in order to gain a more accurate interpretation of the remaining undisturbed grassland/wetland complex.\n\nDownloaded from https://openprairie.sdstate.edu/ --> search Bauman, undisturbed",
  "Subject": "Potentially Undisturbed Lands for use within the ERT.",
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