Document Type
Article
Publication Date
8-25-2005
Abstract
Using satellite observations from 1981–2000, and data interpolated from surface weather stations, we examined the association between gross photosynthetic activity (Pg) and climate across the boreal forest and tundra of Canada. The response of annual and interannual Pg was tightly coupled to climate, and seasonal associations between Pg and climate varied with plant functional types. The most important variable for modeling summer growth of conifer forests was the previous spring minimum temperature, whereas tundra responded primarily to summer maximum temperature. Using general circulation model predictors to 2050, we project that tundra will continue to grow vigorously in the coming decades while conifer forests will not. Increased tundra productivity will likely be associated with changes in vegetation composition (e.g., woody proliferation). If these biotic responses are stationary and persist as predicted, terrestrial carbon budgets will need to be modified.
Publication Title
Geophysical Research Letters
Volume
32
Issue
16
DOI
https://doi.org/10.1029/2005GL023646
Required Publisher's Statement
Copyright 2005 by the American Geophysical Union.
DOI: 10.1029/2005GL023646
Recommended Citation
Bunn, Andrew Godard; Goetz, Scott J.; and Fiske, Gergory J., "Observed and Predicted Responses of Plant Growth to Climate across Canada" (2005). Environmental Sciences Faculty and Staff Publications. 27.
https://cedar.wwu.edu/esci_facpubs/27
Subjects - Topical (LCSH)
Taigas--Climatic factors--Canada; Tundra plants--Climatic factors--Canada
Geographic Coverage
Canada
Genre/Form
articles
Type
Text
Language
English
Format
application/pdf
