Document


Title

Buried seed populations in the subarctic forest east of Great Slave Lake, Northwest Territories
Document Type: Journal Article
Author(s): Edward A. Johnson
Publication Year: 1975

Cataloging Information

Keyword(s):
  • black spruce
  • boreal forest
  • Canada
  • fire
  • NWT - Northwest Territories
  • Picea mariana
  • seed germination
  • tree regeneration
Region(s):
Record Maintained By:
Record Last Modified: December 3, 2015
FRAMES Record Number: 4384

Description

A study was made of buried seeds in 62 cylindrical cores of litter and soil (10 cm diameter X 10 cm depth) collected from 10 sites, on which fires had occurred 42-180 years previously, on upland soil with a vegetation of lichen woodland and a tree canopy of Picea mariana, P. glauca and Pinus banksiana, with some Betula papyrifera. Though seeds were present in the samples, none germinated after stratification at 0 deg C for 3 months and exposure to moist warm (day/night temperatures of 20 deg /10-15 deg ) conditions in a greenhouse. The lack of viable buried seeds provides a partial explanation of the slow recovery of vegetation after fire in sub-arctic forests.

Online Link(s):
Citation:
Johnson, Edward A. 1975. Buried seed populations in the subarctic forest east of Great Slave Lake, Northwest Territories. Canadian Journal of Botany 53(24):2933-2941.