Browsing by Author "University of Minnesota Experimental Forests"

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    Continuous Forest Inventory Plots for the UMN Cloquet Forestry Center
    (2020-07-30) UMN Cloquet Forestry Center; UMN Department of Forest Resources; lbj@umn.edu; Johnson, Lane; University of Minnesota Experimental Forests; University of Minnnesota, Department of Forest Resources, Interagency Information Cooperative; University of Minnesota Cloquet Forestry Center
    The University of Minnesota Cloquet Forestry Center is a field research and instructional station associated with the College of Food, Agricultural, and Natural Resources Sciences (CFANS). Continuous Forest Inventory data has been collected for the CFC since 1959. The network of permanent forest measurement plots consists of 406 1/7 acre plots with a subset of these plots re-measured up to seven times since establishment. The last re-measurement occurred Summer 2014. The majority of the CFI plots were geolocated with a Trimble GeoXT GNSS receiver in 2014 or 2015 to obtain sub-meter precision for each plot center. Plot locations are marked in the field with a tagged center post with painted tree numbers oriented to plot center. Eight plots without precision GNSS locations are indicated within the attribute table. One plot location is missing from this dataset as it could not be relocated in the field (Plot_ID = '620'). The most recent report on the UMN Cloquet Forestry Center CFI is available as 2016 Staff Paper No. 243 published through the UMN Department of Forest Resources and summarizes findings from the 2014 remeasurement.
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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.