This layer represents a crosswalk of the GAP/LANDFIRE National Terrestrial Ecosystems 2011 land cover to the Group level of the U. S. National Vegetation Classification. At the Group level vegetation types are distinguished by diagnostic species and growth forms and regional mesoclimate, geology, substrates, hydrology, and disturbance regimes (for example - Cascadian Oregon White Oak - Conifer Forest & Woodland) In addition to the vegetation types in the map legend there are land use classes (for example - open water, agriculture) that are not a part of the USNVC. Visit these sites for more information about the National Classification, the Federal Geographic Data Committee- Vegetation Subcommittee and the USNVC Standard. These data [...]
