Identifying and Characterizing Important Trembling Aspen Competitors with Juvenile Lodgepole Pine in Three South-Central British Columbia Ecosystems
Joint Authors
Newsome, Teresa A.
Heineman, Jean L.
Nemec, Amanda F. Linnell
Source
International Journal of Forestry Research
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-18
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Critical height ratios for predicting competition between trembling aspen and lodgepole pine were identified in six juvenile stands in three south-central British Columbia ecosystems.
We used a series of regression analyses predicting pine stem diameter from the density of neighbouring aspen in successively shorter relative height classes to identify the aspen-pine height ratio that maximized R2.
Critical height ratios varied widely among sites when stands were 8–12 years old but, by age 14–19, had converged at 1.25–1.5.
Maximum R2 values at age 14–19 ranged from 13.4% to 69.8%, demonstrating that the importance of aspen competition varied widely across a relatively small geographic range.
Logistic regression also indicated that the risk of poor pine vigour in the presence of aspen varied between sites.
Generally, the degree of competition, risk to pine vigour, and size of individual aspen contributing to the models declined along a gradient of decreasing ecosystem productivity.
American Psychological Association (APA)
Newsome, Teresa A.& Heineman, Jean L.& Nemec, Amanda F. Linnell. 2012. Identifying and Characterizing Important Trembling Aspen Competitors with Juvenile Lodgepole Pine in Three South-Central British Columbia Ecosystems. International Journal of Forestry Research،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-481886
Modern Language Association (MLA)
Newsome, Teresa A.…[et al.]. Identifying and Characterizing Important Trembling Aspen Competitors with Juvenile Lodgepole Pine in Three South-Central British Columbia Ecosystems. International Journal of Forestry Research No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-481886
American Medical Association (AMA)
Newsome, Teresa A.& Heineman, Jean L.& Nemec, Amanda F. Linnell. Identifying and Characterizing Important Trembling Aspen Competitors with Juvenile Lodgepole Pine in Three South-Central British Columbia Ecosystems. International Journal of Forestry Research. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-481886
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-481886