BLM REA CYR 2013 Current Distribution of Upland Mesic Spruce Hardwood Forest

Metadata Updated: November 12, 2020

Some of the CYR rasters intentionally do not align or have the same extent. These rasters were not snapped to a common raster per the authors' discretion. Please review selected rasters prior to use. These varying alignments are a result of the use of differing source data sets and all products derived from them. We recommend that users snap or align rasters as best suits their own projects. - The upland mesic spruce hardwood forest CE occurs from the southern slopes of the Brooks Range to Southcentral Alaska and west to the limit of tree growth. Soils are well-drained and typically derived from glacial deposits, colluvium, ancient alluvium, or loess. This CE typically occurs on upland terrain to 750 m on all aspects but north. Permafrost is discontinuous in this CE. Forests contain all post-fire seral stages including needle-leaved evergreen, broad-leaved deciduous or mixed. Dominant canopy species include Picea glauca, Betula neoalaskana, and Populus tremuloides. Canopy cover typically ranges from 30%–80%. Mature stands are often open-canopied with a well-developed shrub layer. Common shrubs include Alnus viridis ssp. fruticosa, Betula glandulosa, Rosa acicularis, Rhododendron tomentosum, Rhododendron groenlandicum, Salix glauca, Vaccinium vitis-idaea, Vaccinium uliginosum, and Linnaea borealis. The herbaceous layer is sparse with low species diversity, but may include Calamagrostis canadensis, Equisetum arvense, Equisetum sylvaticum, Gymnocarpium dryopteris, Pyrola spp., and Geocaulon lividum. The most common moss is Hylocomium splendens. Upland mesic spruce hardwood forest was derived from the Deciduous Forest and Mixed Forest classes of the Input National Land Cover Database (2011) and the Deciduous Forest to Shrub/Scrub, Mixed Forest to Grassland/Herbaceous, and Mixed Forest to Shrub/Scrub classes of the National Land Cover Database 2001 to 2011 From To Change Index extracted to non-floodplain areas of the study area. Upland mesic spruce hardwood forest is a current distribution dataset.

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Metadata Date October 13, 2017
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) June 15, 2016 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from DOI Open Data

Additional Metadata

Resource Type Dataset
Metadata Date October 13, 2017
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) June 15, 2016 (publication)
Responsible Party Alaska Center for Conservation Science, University of Alaska Anchorage (Point of Contact)
Contact Email
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Bbox East Long -137.454504
Bbox North Lat 69.369106
Bbox South Lat 61.998133
Bbox West Long -164.581992
Coupled Resource
Frequency Of Update notPlanned
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Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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