Field data for the Vegetation Mapping Inventory Project of Knife River Indian Villages National Historic Site

This reference is an assemblage of field data collected as part the baseline vegetation inventory for the park unit. Typical files here are vegetation plot data, accuracy assessment data, field photos, PDF showing locations of vegetation plots and accuracy assessment data, and other data for this type. The vegetation mapping protocol for KNRI was modified from the standard techniques due to its extremely small size and history of alteration to the native vegetation. No systematic survey was conducted to describe the vegetation. Instead, NatureServe developed a list of potential types. This list was then compared to vegetation types found during the site visit and the results are presented in this report. In addition, photointerpretation was conducted prior to the site visit. All vegetation types that could be delineated or differentiated were identified and assigned a vegetation type using the list provided by NatureServe. Each polygon delineated was visited in the field and assigned its respective vegetation type. This eliminated the need for a follow-up accuracy assessment. A total of 17 vegetation (land cover) classes were used for interpretation of approximately 8872 acres encompassing the Park and surrounding environs. Vegetation map classes were determined through field reconnaissance and reference to the preliminary list of potential vegetation types provided by NatureServe.