ABoVE: Synthesis of Post-Fire Regeneration Across Boreal North America, 1989-2015 : Arctic-Boreal Vulnerability Experiment (ABoVE)

This dataset is a synthesis of species-specific pre- and post-fire tree stem density estimates, field plot characterization data, and acquired climate moisture deficit data for sites from Alaska, USA eastward to Quebec, Canada in fires that burned between 1989 and 2015. Data are from 1538 sites acro...

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Bibliographic Details
Main Authors: Baltzer, J.L., Day, N.J., Walker, X.J., Greene, D.F., Mack, M.C., Arseneault, D., Barnes, J., Bergeron, Y., Boucher, Y., Bourgeau-Chavez, L.L., Brown, C.D., Carrière, S., Howard, B.K., Gauthier, S., Parisien, M.A., Reid, K.A., Rogers, B.M., Roland, C., Sirois, L., Stehn, S., Thompson, D.K., Turetsky, M.R., Whitman, E., Johnstone, J.F.
Format: Article in Journal/Newspaper
Language:English
Published: ORNL Distributed Active Archive Center 2021
Subjects:
Arctic
Canada
Alaska
Online Access:https://dx.doi.org/10.3334/ornldaac/1955
https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1955
Description
Summary:This dataset is a synthesis of species-specific pre- and post-fire tree stem density estimates, field plot characterization data, and acquired climate moisture deficit data for sites from Alaska, USA eastward to Quebec, Canada in fires that burned between 1989 and 2015. Data are from 1538 sites across 58 fire perimeters encompassing 4.52 Mha of forest and all major boreal ecozones in North America (Figure 1). To be included in this synthesis, a site had to contain information on species-specific post-fire seedling densities. This included sites where seedlings had been counted 2-13 years post-fire, a timeframe over which we find little change in relative dominance of species densities. For 1400 sites, data on pre-fire species-specific stem density is provided. Plot level characterization data includes stand age, site drainage, disturbance history, crown combustion severity, seedbed conditions, and stand structural attributes and is available for 1046 of the sites. Gridded values of Hargreaves' Climate Moisture Deficit were obtained for each plot. This included 30-year normals (1981-2010) and those of the two years immediately following the fire year. Climate moisture deficit anomalies were calculated as the difference between the 30-year normal and the single year values for each of the first two years after a fire.

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