The inclusionary element layer is being phased out, and is not included in the Core Database. Some non-data polygons are unlabeled. These are usually PLS section delineations within which no stands have been mapped. Accuracy Not Applicable Lineage Data are collected through a well-defined process of stand delineation on mylar over 9 by 9 inch aerial photographs. Aerial photographs are prepped with section corners for registration purposes.
Vegetative cover is interpreted from the photographs prior to commencement of field work.
After completion of fieldwork, delineations are adjusted accordingly to match stable basemaps. Most attribute data are also collected in the field, using standard forms that are used in subsequent tablular data entry tasks. Some work with field data recorders has been performed. Data entry work is contracted out to BRW, Inc., which receives manuscripts and returns updated data sets by PLS township. Data are subjected to automated QC processes upon receipt at DNR Division of Forestry.