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Inconsistent Growth Response to Fertilization and Thinning of Lodgepole Pine in the Rocky Mountain Foothills Is Linked to Site Index
Joint Authors
Landhäusser, Simon M.
Pinno, Bradley D.
Lieffers, Victor J.
Source
International Journal of Forestry Research
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-29
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Fertilization of conifers often results in highly variable growth responses across sites which are difficult to predict.
The goal of this study was to predict the growth response of lodgepole pine (Pinus contorta var.
latifolia) crop trees to thinning and fertilization using basic site and foliar characteristics.
Fifteen harvest-origin stands along the foothills of the Rocky Mountains of Alberta were subjected to six treatments including two levels of thinning (thinning to 2500 stems per hectare and a control) and three types of fertilization (nitrogen-only fertilization, complete fertilization including nitrogen with added P, K, S, Mg, and B, and no fertilization).
After three growing seasons, the growth response and foliar status of the crop trees were examined and this response was related to site and foliar characteristics.
There was a small and highly variable additive response to fertilization and thinning; diameter growth of crop trees increased relative to the controls an average of 0.3 cm with thinning, 0.3 cm with either N-only or complete fertilization and 0.6 cm when thinned and fertilized.
The increase in diameter growth with thinning and nitrogen-only fertilization was positively related to site index but not to any other site factors or pretreatment foliar variables such as nutrient concentrations, ratios, or thresholds.
American Psychological Association (APA)
Pinno, Bradley D.& Lieffers, Victor J.& Landhäusser, Simon M.. 2012. Inconsistent Growth Response to Fertilization and Thinning of Lodgepole Pine in the Rocky Mountain Foothills Is Linked to Site Index. International Journal of Forestry Research،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-453474
Modern Language Association (MLA)
Pinno, Bradley D.…[et al.]. Inconsistent Growth Response to Fertilization and Thinning of Lodgepole Pine in the Rocky Mountain Foothills Is Linked to Site Index. International Journal of Forestry Research No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-453474
American Medical Association (AMA)
Pinno, Bradley D.& Lieffers, Victor J.& Landhäusser, Simon M.. Inconsistent Growth Response to Fertilization and Thinning of Lodgepole Pine in the Rocky Mountain Foothills Is Linked to Site Index. International Journal of Forestry Research. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-453474
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-453474