reference : Change and evolution in the plant hardiness zones of Canada

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Bibliographic fields
reftype Journal Article
Abstract We present 50-year updates for two plant hardiness models (maps), developed originally by Agriculture Canada and the US Department of Agriculture (USDA), that are widely used for plant selection decisions in Canada. The updated maps show clear northward shifts in hardiness zones across western Canada. Shifts are less dramatic in southeastern Canada, with modest increases in zone values associated with the Canadian map but modest declines associated with the USDA approach. Species-specific climate envelope models are an alternative to generalized hardiness zones. We generated climate envelopes for 62 northern tree species over the same 50-year interval and found an average northward shift of 57 kilometers. These changes signal an increase in the productivity and diversity of plants that can be grown in Canada. However, late spring frosts and other factors discussed herein may limit the extent to which this potential is realized.
Author McKenney, Daniel W.; Pedlar, John H.; Lawrence, Kevin; Papadopol, Pia; Campbell, Kathy; Hutchinson, Michael F.
DOI 10.1093/biosci/biu016
ISSN 0006-3568
Issue 4
Journal BioScience
Notes 10.1093/biosci/biu016
Pages 341-350
Title Change and evolution in the plant hardiness zones of Canada
Volume 64
Year 2014
Bibliographic identifiers
_record_number 24355
_uuid 68a46f2e-c76d-4d04-a9cf-11b63759be09