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Competitive effects of broadleaf trees on conifer performance over a range of ecosystems Newsome, Teresa A.
2006
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Abstract: This project was initiated to study competitive relationships between lodgepole pine (Pinus contorta) and trembling aspen (Populus tremuloides) and to provide scientifically based and operationally useful information about the management of mixed stands. Conifer timber production is usually the primary management objective for forest plantations and the effects of broadleaves within these plantations are not well understood. Pine and aspen were chosen for study because they are the most common conifer-broadleaf mixture to occur in the Cariboo-Chilcotin. There are 3 groups of experiments within this project: 1. A ?retrospective study? was initiated in 1992 in naturally regenerated pine aspen forests in the IDFdk and SBSdw1. Some of the results have already been used to develop the existing free growing guidelines. 2. Based on findings from the retrospective study, 4 ?variable density studies? were established in the ? SBPSxc (Clusko), IDFxm (Meldrum), SBSdw1 (McKinley), and SBSdw2 (Tyee) subzones to provide information about the effects of aspen density and spatial arrangement on pine growth. 3. A ?light study? investigates the relationship between aspen basal area and light availability in aspen stands of different ages across a range of subzones. In 2007 a paper which will combine the individual trial results will be initiated. The objective of the paper is to combine and contrast the differences in competitive relationships between aspen and lodgepole pine across ecological boundaries. Then to determine trends that can be applied practically to improve forest management techniques. Teresa Newsome.
 
Newsome, Teresa A.. 2006. Competitive effects of broadleaf trees on conifer performance over a range of ecosystems. Forest Investment Account (FIA) - Forest Science Program. Forest Investment Account Report. FIA2006MR136
 
Topic: FLNRORD Research Program
Keywords: Forest, Investment, Account, (FIA), Lodgepole, pine, British, Columbia, Growth, Pinus, Contorta, Populus, Tremuloides, Thinning, Plants, Effect, Light, On
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