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Oregon's Forest Atlas 2010 online edition
Oregon: Ecological System Habitats
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The composition, diversity, and structure of vascular plants are important factors in assessing biological diversity of forested ecosystems. Vegetation is the source of primary production and a primary determinant of habitat for many species. Changes in these factors due to non-native species, climate change, forestland conversion or development, and land management changes are concerns at multiple spatial scales. The composition and structure of plants can serve as indicators of changes to ecosystems and as indicators of the status of other organisms and ecosystem processes that are difficult to measure directly.
For more information on how major forest cover types are currently allocated to land management categories refer to the Oregon Indicator of Sustainable Forest Management: Extent of area by forest cover type in protected area categories accessed 

Map for download and viewing
Map showing ecological habitat systems within Oregon
This map depicts Oregon’s forest coverage expressed as ecological system habitats using data from the U.S. Forest Service PNW Research Station in Corvallis, the Oregon Institute for Natural Resources at Oregon State University and the Oregon Department of Forestry.
JPG version of the map - ( 3 Mb file)

Detail zoom-in of the Three Sisters region of central Oregon
Locator map showing the Three Sisters area of central Oregon
JPG version of the map ( 3.2 Mb file)

Detail zoom-in of northern Douglas County
Locator map showing the northern area of Douglas County, Oregon
JPG version of the map ( 4.2 Mb file)

Detail zoom-in of Crater Lake National Park
JPG version of the map ( 3.7 Mb file)

Important information about Forest Atlas map products
Data for the Forest Atlas was compiled by staff with the Oregon Department of Forestry in 2010 using data generated by the U.S. Forest Service PNW Research Station in Corvallis, Oregon State University and the Oregon Department of Forestry.
This product is for informational purposes, and may not be suitable for legal, engineering or surveying purposes. This information or data is provided with the understanding that conclusions drawn from such information are the responsibility of the user.

Data contained within the map products does not necessarily reflect conditions at a fine-detail level.  Some data models rely on site information at least one year old. All information published herein is gathered from sources which are thought to be reliable, but the reader should not assume that the information is official or final, especially for the purposes of land use determination. The Oregon Department of Forestry does not assume responsibility for errors, and all research information contained within the website is subject to change without notice.
Additional information is contained in the liability notice 

Oregon's Forest Atlas main page 
2010 Forest Assessment and Resource Strategy project information
Additional questions about Oregon's Forest Atlas 2010 can be addressed by the Oregon Department of Forestry's Agency Affairs Office.