Document


Title

Methodological considerations in the analysis of forest disturbance history
Document Type: Journal Article
Author(s): C. G. Lorimer
Publication Year: 1985

Cataloging Information

Keyword(s):
  • Acer saccharum
  • age classes
  • Betula alleghaniensis
  • Canada
  • charcoal
  • conifers
  • crowns
  • dendrochronology
  • diameter classes
  • distribution
  • disturbance
  • dominance (ecology)
  • fire scar analysis
  • forest management
  • hardwoods
  • histories
  • landscape ecology
  • microclimate
  • mortality
  • national parks
  • overstory
  • plant growth
  • plant physiology
  • sampling
  • size classes
  • statistical analysis
  • surface fires
  • topography
  • trees
  • Tsuga canadensis
  • Tsuga heterophylla
  • wilderness areas
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 33624
Tall Timbers Record Number: 7791
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

A number of nondestructive techniques for analyzing the timing, frequency, and magnitude of natural disturbances in forest stands are discussed in this paper. Intensive age determination of trees is desirable for reconstructing forest disturbance history, but age distrubution alone is not always a sufficient basis for a disturbance chronology. Frequently all-aged forests have undergone severe past disturbance which cannot be readily identified from the distribution of trees among age-classes. Radial growth patterns provide more direct evidence of past canopy tree deaths. In cases where a large sample of tree ages and growth records is not feasible, structural attributes of forests can provide valuable supplementary evidence. Evidence of the effects of disturbance history and age structure on diameter distributions is examined, and principles for valid interpretation proposed. Crown area distributions and diameter distributions of nonsuppressed trees potentially appear to be more reliable structural indicators of past canopy disturbance than simple size distributions. For regional studies of disturbance frequency, random dispersal of medium to large plots across large landscape units is recommended as a sample design.© National Research Council of Canada, NRC Research Press. Abstract reproduced by permission.

Online Link(s):
Citation:
Lorimer, C. G. 1985. Methodological considerations in the analysis of forest disturbance history. Canadian Journal of Forest Research, v. 15, no. 1, p. 200-213.