Umpqua National Forest, OR, USA - Forest Vegetation Types

This dataset depicts forest vegetation types in terms of series and ecoclasses on the Umpqua National Forest in Oregon. These vegetation types describe either the current dominant species, or the species expected to become dominant in the potential natural community. Potential natural communities are defined as "the biotic community that would be established if all successional sequences of its ecosystem were completed without additional human-caused disturbance under present environmental conditions." (Hall 1998). Ecoclasses are described in greater detail in: Hall, F.C. 1998. Pacific Northwest ecoclass codes for seral and potential natural communities. U.S. Department of Agriculture, Forest Service, General Technical Report PNW-GTR-418.