Document


Title

Decadal observations of tree regeneration following fire in boreal forests
Document Type: Journal Article
Author(s): Jill F. Johnstone; F. Stuart Chapin III; M. Joan Foote; S. Kemmett; K. Price; Leslie A. Viereck
Publication Year: 2004

Cataloging Information

Keyword(s):
  • aspen
  • Betula papyrifera
  • boreal forests
  • British Columbia
  • Canada
  • coniferous forests
  • disturbance
  • experimental fire
  • fire injuries (plants)
  • fire management
  • fire recovery
  • forest management
  • Larix laricina
  • lodgepole pine
  • mortality
  • Picea glauca
  • Picea mariana
  • Pinus contorta
  • plant growth
  • population density
  • Populus balsamifera
  • Populus tremuloides
  • post-fire forest succession
  • post-fire recovery
  • regeneration
  • seed
  • spruce
  • stand characteristics
  • statistical analysis
  • succession
  • thinning
  • vegetation surveys
  • wildfires
Region(s):
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 4403
Tall Timbers Record Number: 15970
TTRS Location Status: In-file
TTRS Call Number: Journals-C
TTRS Abstract Status: Okay, Fair use, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.

Description

This paper presents data on early postfire tree regeneration. The data were obtained from repeated observations of recently burned forest stands along the Yukon-British Columbia border and in interior Alaska. Postfire measurements of tree density were made periodically for 20-30 years, providing direct observations of early establishment patterns in boreal forest. Recruitment rates of the dominant tree species in both study areas were highest in the first 5 years after fire, and additional net establishment was not observed after 10 years. The postfire population of spruce (Picea mariana (Mill.) BSP and Picea glauca (Moench) Voss s.l.) remained constant after the first decade in the two study areas. Populations of aspen (Populus tremuloides Michx.) and lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.) both declined after 10 years in mixed-species stands along the Yukon-British Columbia border. Morality rates of aspen and pine were positively correlated with their initial densities, indicating that thinning occurred as a density-dependent process. At all sites, measurements of stand density and composition made early were highly correlated with those made late in the monitoring period, indicating that patterns of stand structure initiated within a few years after fire are maintained through subsequent decades of stand development.

Online Link(s):
Citation:
Johnstone, Jill F.; Chapin III, F. Stuart; Foote, M. Joan; Kemmett, S.; Price, K.; Viereck, Leslie A. 2004. Decadal observations of tree regeneration following fire in boreal forests. Canadian Journal of Forest Research 34(2):267-273.