Browsing by Subject "Superior National forest"

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    Estimated Primary Forest Extents of the Boundary Waters Canoe Area Wilderness (BWCAW)
    (2022-08-29) Johnson, Lane B; lbj@umn.edu; Johnson, Lane B; University of Minnesota Experimental Forests; University of Minnesota Dendroecology Laboratory
    This primary forest coverage was developed in 2014-2015 as an aid to tree-ring fire history investigations in the Boundary Waters Canoe Area Wilderness (Kipfmueller et al. 2021, Larson et al. 2021, Johnson and Kipfmueller 2016). The coverage is generally useful for research and stewardship of the forest communities within the BWCAW. The map is meant as a guide for presence/absence of primary forest and is not a substitute for on-the-ground assessments of forest age, composition, and structure. The coverage is still a work in progress and may be further refined with the help of coverage users. The coverage is best used to visualize primary forest extents and is not meant, at this time, to provide exact measures of remaining old-growth forest. Wildfires from 2015-2021 may have caused slight reductions in old-growth forest extents since this coverage was developed.