Year

• Label: Year
• Definition: The year in which the land use or modification occurred.
• Type: Nominal
• Missing values: None specified

,
Type

• Label: Type
• Definition: A brief description of the nature of the modification
• Type: Nominal
• Missing values: None specified

,
DataSource

• Label: DataSource
• Definition: The source from which spatial information about the modification was discovered.
• Type: Code list
• Codes:
  • Young = Professor L. Young's historic plantation maps. See the resident biologist for the original
  • Williamson = Marilyn Williamson's 1970 land cover map
  • Kyle_imagery = Things I digitized from aerial imagery
  • GPS = Data I collected on the ground with a Garmin 62st
  • Sales = UMBS Timber sale records
  • Albert-Minc = Dennis Albert's map of Colonial Point land cover from the 1980's
  • Pearsall = Pearsall 1995's land cover map
  • Martell = Forester Keith Martell's estimation of a plantation's thinning history before it was owned by UMBS
  • BVK = Interview with Bob Vande Kopple
  • Shackelford = John Shackelford's land cover map of the Osborne Preserve
• Missing values: None specified