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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...
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Plant series for the Umpqua National Forest. This layer was developoed from ecology plot data and analysis of each plot's physical characteristics (slope, elevation, aspect). The characteristics were used to map the forest into several series used for classification. Each polygon attribute represents the plant series as defined by the physical characteristics of the polygon. These polygons were manusctipited on 1:24000 mylars and scanned and edited in LTPlus. This cover was built at a map scale of 1:24000.


    map background search result map search result map Umpqua National Forest Plant Series Umpqua National Forest, OR, USA - Forest Vegetation Types Umpqua National Forest Plant Series Umpqua National Forest, OR, USA - Forest Vegetation Types