Catalog Record: Alaska Arctic Substrate Chemistry Map
Filename: imported_locations




Aga arctic ak substrate 2005

Alaska Arctic Substrate Chemistry Map

Differences in substrate chemistry, including pH, govern the availability of essential plant nutrients. Soils in the circumneutral range (pH 5.5-7.2) are generally mineral rich, whereas the full suite of essential nutrients is often unavailable in acidic soils (pH < 5.5) or in soils associated with calcareous bedrock (pH > 7.2). The latter often have unique assemblages of plant species. The substrate chemistry map is derived from a wide variety of sources including soil, surficial geology and bedrock geology maps, and from spectral patterns that could be recognized on the AVHRR base image. Carbonate substrates occur mostly in mountainous regions, while circumneutral substrates are mostly fine-grained loess occurring at lower elevations in foothills or plains. The Alaska Arctic Substrate Chemistry Map is a more detailed map of the Alaska portion of the Circumpolar Arctic Vegetation Map (CAVM). The substrate chemistry mapping is the same as the Circumpolar Arctic Vegetation Map.

Back to Alaska Arctic Tundra Vegetation Map

Go to Website Link :: Toolik Arctic Geobotanical Atlas below for details on legend units, photos of map units and plant species, glossary, bibliography and links to ground data.

Map Themes AVHRR NDVI, Bioclimate Subzone, Elevation, False Color-Infrared, Floristic Province, Lake Cover, Landscape, Substrate Chemistry, Vegetation


Raynolds, M.K., Walker, D.A., Maier, H.A. 2005. Plant community-level mapping of arctic Alaska based on the Circumpolar Arctic Vegetation Map. Phytocoenologia. 35(4):821-848. http://doi.org/10.1127/0340-269X/2005/0035-0821

Raynolds, M.K., Walker, D.A., Maier, H.A. 2006. Alaska Arctic Tundra Vegetation Map. 1:4,000,000. U.S. Fish and Wildlife Service. Anchorage, AK.


Data and Resources

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    Download :: GIS Data

    aga_arctic_ak_substrate_2005_shp.zip (204 KB)

  • Download

    Download :: Map Image

    aga_arctic_ak_substrate_2005.jpg (1.46 MB)

  • View website

    Website :: Toolkit Arctic Geobotanical Atlas


Status: Complete
Type: Data
Data Types: GIS, Image, Map
Primary Contacts
Name: Martha Raynolds
Email: mkraynolds@alaska.edu
Other Contacts
Name: Alaska Geobotany Center (AGC)
Email: uaf-agc@alaska.edu
Primary Organizations
Alaska Geobotany Center

Alaska, Arctic

Alaska Arctic Tundra Vegetation Map
All Maps

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