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Article: Competitive success of natural oak regeneration in clearcuts during the stem exclusion stage.(Report)
- Article from:
- Canadian Journal of Forest Research
- Article date:
- June 1, 2008
- Author:
CopyrightCOPYRIGHT 2008 NRC Research Press. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract: We sampled dominant and codominant regeneration on 70 clearcuts, 21-35 years old, on the Hoosier National Forest in southern Indiana, USA, to evaluate influence of site variables on the competitive success of natural oak (Quercus L.) over time. Collected data was compared with data collected on these same sites 20 years prior. Regression tree analysis indicated aspect, natural region, and oak abundance in preharvest stands had the greatest influence on competitive success (relative density, RD) of oak species in the latter sampling, which was then examined across sites as defined by these three variables. Oak RD increased across all mid- and some lower-slope ...