Holocene vegetation histories from three sites in the Tundra of Northwestern Quebec, Canada
Abstract
Two pollen diagrams from lakes north of treeline in northwestern Quebec indicate that Picea never extended north of its present-day limit during the past 6000 yr BP. Alnus crispa was slightly more abundant around 5000 BP, but there are few major changes in the vegetation of the region during the Holocene. A third site in the tundra along Hudson Bay has a slightly longer sequence (7000 yr BP) which indicates more open conditions in the early and recent part of the record. Picea may have been more abundant locally around 3000 BP. Few major changes in these diagrams can be unequivocally attributed to local changes in plant abundance; changes in tree and shrub pollen abundance parallel those seen south of treeline.
- Authors:
-
- Univ. d'Ottawa, Ontario (Canada)
- Publication Date:
- OSTI Identifier:
- 6945247
- Resource Type:
- Journal Article
- Journal Name:
- Arctic and Alpine Research (Boulder, Colorado); (United States)
- Additional Journal Information:
- Journal Volume: 24:4; Journal ID: ISSN 0004-0851
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; PLANTS; ECOLOGICAL SUCCESSION; COMMUNITIES; PALEONTOLOGY; QUATERNARY PERIOD; QUEBEC; SPRUCES; CANADA; CENOZOIC ERA; CONIFERS; DEVELOPED COUNTRIES; GEOLOGIC AGES; NORTH AMERICA; PINOPHYTA; TREES; 540210* - Environment, Terrestrial- Basic Studies- (1990-)
Citation Formats
Gajewski, K, and Garralla, S. Holocene vegetation histories from three sites in the Tundra of Northwestern Quebec, Canada. United States: N. p., 1992.
Web. doi:10.2307/1551288.
Gajewski, K, & Garralla, S. Holocene vegetation histories from three sites in the Tundra of Northwestern Quebec, Canada. United States. https://doi.org/10.2307/1551288
Gajewski, K, and Garralla, S. 1992.
"Holocene vegetation histories from three sites in the Tundra of Northwestern Quebec, Canada". United States. https://doi.org/10.2307/1551288.
@article{osti_6945247,
title = {Holocene vegetation histories from three sites in the Tundra of Northwestern Quebec, Canada},
author = {Gajewski, K and Garralla, S},
abstractNote = {Two pollen diagrams from lakes north of treeline in northwestern Quebec indicate that Picea never extended north of its present-day limit during the past 6000 yr BP. Alnus crispa was slightly more abundant around 5000 BP, but there are few major changes in the vegetation of the region during the Holocene. A third site in the tundra along Hudson Bay has a slightly longer sequence (7000 yr BP) which indicates more open conditions in the early and recent part of the record. Picea may have been more abundant locally around 3000 BP. Few major changes in these diagrams can be unequivocally attributed to local changes in plant abundance; changes in tree and shrub pollen abundance parallel those seen south of treeline.},
doi = {10.2307/1551288},
url = {https://www.osti.gov/biblio/6945247},
journal = {Arctic and Alpine Research (Boulder, Colorado); (United States)},
issn = {0004-0851},
number = ,
volume = 24:4,
place = {United States},
year = {Sun Nov 01 00:00:00 EST 1992},
month = {Sun Nov 01 00:00:00 EST 1992}
}
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