SOIL polygon coverage


This coverage indicates the boundaries of the soil polygons. Linkages to attributes in related tables is through the PAT.


  • To display information, the HYDRO coverage must be used in conjuction with this coverage. (see the mapping instructions for SLCs)
  • To calculate areas of components, the COMPONENT table should be related to the PAT via the SL field. The area of any component is then equal to PERCENT from the COMPONENT table multiplied by the LAND_AREA from the PAT divided by 100 (see the sample calculation for SLCs).
  • To perform intersections with other datasets (using PARS for example), the HYDRO coverage should be used to mask out the non-relevant areas from the SLC coverage.