Soil chemical changes and plant succession following experimental burning in immature jack pine
Document Type: Journal Article
Author(s): T. J. Lynham; G. M. Wickware; J. A. Mason
Publication Year: 1998

Cataloging Information

  • Amelanchier
  • Angustifolium
  • Aralia
  • Aralia nudicaulis
  • boreal forests
  • Canada
  • chemical elements
  • Cladina
  • Cladina rangiferina
  • Comptonia peregrina
  • Corylus
  • Corylus cornuta
  • cover
  • Epilobium
  • Epilobium angustifolium
  • experimental fires
  • fire adaptations (plants)
  • fire exclusion
  • fire management
  • forest management
  • Linnaea borealis
  • litter
  • mineral soils
  • mosaic
  • nitrogen
  • Ontario
  • organic soils
  • Oryzopsis
  • pH
  • phosphorus
  • Pinus banksiana
  • Pleurozium
  • Pleurozium schreberi
  • Polytrichum commune
  • post fire recovery
  • regeneration
  • Salix
  • sampling
  • soil management
  • soil nutrients
  • soils
  • stand characteristics
  • statistical analysis
  • succession
  • understory vegetation
  • Vaccinium
  • Vaccinium angustifolium
  • vegetation surveys
  • Viola
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 37464
Tall Timbers Record Number: 11935
TTRS Location Status: In-file
TTRS Call Number: Fire File
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.


In 1975 nd 1976, an experimental burning program was conducted in an immature stand of boreal jack pine (Pinus banksiana Lamb.) growing on level, granitic outwash sands in northern Ontario. Nine 0.4-ha plots were burned under a range of fire weather conditions and sampling was conducted to examine the effect of fire on soil chemical changes and revegetation. Results indicated that depth of burn (DOB) affected both soil chemical changes and plant succession on these pine sites. Vaccinium angustifolium Ait., Oryzopsis spp., Waldsteinia fragarioides (Michx.) Tratt, Salix spp. and Viola adunca Sm. increased in cover at two levels of DOB but the increase was greatest at the lower DOB and decreased to pre-burn levels after 10 yr. Comptonia peregrina (L.) Coult., Epilobium angustifolium L., Polystrichum commune Hedw. and Amelanchier sanguinea (Pursh) DC. were not found in the pre-burn surveys but appeared after burning. Vegetation cover for these species was always higher at the deeper DOB but decreased almost to zero after 10 yr. Other species such as Pleurozium schreberi (Brid.) Mitt., Linnea borealis L., Corylus cornuta Marsh., Cladina rangiferina (L.) Nyl. and Aralia nudicaulis L. were eliminated from the site and did not recover even after 10 yr. Soil pH increased 0.3 to 1.0 pH units in the organic and mineral soil layers. The rate of increase in pH was always steeper at the higher DOB and pH returned to pre-burn levels in the mineral soil layers after 10 yr. Immediately after burning, exchangeable Ca in the mineral soil layers doubled but 10 yr later, Ca returned to pre-burn levels. Phosphorus and K increased in the mineral soil, leveled off and were still elevated after 10 yr. Total Kjeldahl N was reduced by 50% in the organic soil while N in all mineral soils increased, and was still increasing after 10 yr. Except for immediate post-fire increases in pH, Ca and N, soil chemical changes were small or they rebounded to pre-burn levels 10 yr after burning. Therefore it is unlikely that these changes were the cause of the plant cover changes that persisted to 10 yr.

Lynham, T. J., G. M. Wickware, and J. A. Mason. 1998. Soil chemical changes and plant succession following experimental burning in immature jack pine. Canadian Journal of Soil Science, v. 78, p. 93-104.