The US National Vegetation Classification provides the conceptual framework for classifying both cultural and natural vegetation of the U.S. The vision for the standard was that it would be:
- Useful for conservation and resource management
- Focused on classifying existing vegetation
- Hierarchical, with upper levels based on physiognomy and lower levels based on floristics
- Inclusive of both cultural and natural vegetation types
- Built from publicly available plot data whenever possible
- Revised through a peer review process
The hierarchy for the cultural types of the standard relies heavily on existing classification systems (FGDC 2008). The proposed pilot classification for the upper levels of the cultural hierarchy are based on the National Land Cover Dataset (USGS 2001) classes, while several of the lower levels are based on the Natural Resources Inventory, the Natural Resources Conservation Service (NRI 2003). The Vegetation Panel plans to continue to work with the federal agencies to refine the classification of cultural types.
Currently much of the activity of the ESA Panel is focused on implementing a streamlined review process for descriptions at all levels of the hierarchy and developing training and outreach materials for NVC users. If you are interested in participating in the review process please contact us.
For more details on these efforts, please see the Current Projects page and view this overview of the USNVC Partnership roles, tasks, and status.
TO EXPLORE THE CURRENT CONTENT – VISIT THE NVC Hierarchy Browser.
- FGDC 2008 National Vegetation Classification Standard, Version 2. Federal Geographic Data Committee – Vegetation Subcommittee. FGDC-STD-005-2008 (Version 2). http://www.fgdc.gov/standards/projects/FGDC-standards-projects/vegetation/NVCS_V2_FINAL_2008-02.pdf
- National Resources Inventory (NRI). 2003. Handbook of Instruction for Remote Data Collection, Chapter 13. Land Cover / Use. Natural Resources Conservation Service. USDA, Washington, DC.
- U.S. Geological Survey (USGS). 2001. NLCD Land Cover Class Definitions, USGS EROS Data Center, Sioux Falls, South Dakota, URL: http://landcover.usgs.gov/natllandcover.php, last accessed 30 August 2006.