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Response of advance lodgepole pine regeneration to overstory removal in eastern Idaho


Murphy, Tanya E. Lewis; Adams, David L.; Ferguson, Dennis E. 1999. Response of advance lodgepole pine regeneration to overstory removal in eastern Idaho. Forest Ecology and Management. 120: 235-244.

Twenty-two stands of advance lodgepole pine released with overstory removal were sampled to determine height growth response. Tree and site characteristics correlated with release response were identified, and a mathematical model was developed to predict height growth in years 6 through 10 after release as a function of residual overstory basal area, height at release, percent rock cover, five-year cumulative growth prior to release, logging damage, stand elevation, and habitat type. Lodgepole pine responded to release with increased height growth in 97% of the trees sampled. Growth was similar to that of unsuppressed trees. Height growth is best when the entire overstory is removed and logging damage is avoided. Taller trees generally do not respond as well as shorter trees. However, trees growing fast before harvest continue to grow fast regardless of their height at release. Recommendations for selecting stands of advance lodgepole pine to release are provided.

Keywords: advance growth, growth response, liberation cut, Pinus contorta var. latifolia, release, suppression


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http://www.fs.fed.us/rm/pubs_other/rmrs_1999_murphy_t001.pdf

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Title: RMRS Other Publications: Response of advance lodgepole pine regeneration to overstory removal in eastern Idaho
Electronic Publish Date: June 30, 2010
Last Update:
June 30, 2010

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