Doug Pitt, Bill Parker, Andree Morneault, Al Stinson, Wayne Bell, and Len Lanteigne
Canadian Forest Service

SERG Project #2000/02
Year of Project: 2002
Report Received: 2003

Technical Note
Abstract

In 2000, the Canadian Ecology Centre Forestry Research Partnership initiated two side-by-side experiments aimed at quantifying the effects of woody and herbaceous vegetation on white pine establishment, growth, and stem quality. The first experiment was established subsequent to a clearcut harvest near Reynolds Lake, ON, and is intended to represent the restoration of white pine to sites that have become dominated by other, less desirable species. White pine seedlings were planted and treatments initiated on this site in 2001. The second experiment was established subsequent to a shelterwood harvest near Susy Lake, ON, and is intended to represent conventional regeneration efforts where white pine are well represented in parent stands. White pine seedlings were planted and treatments initiated on this site in 2002. Through the support of the Spray Efficacy Research Group (SERG), J.D. Irving Limited, and the Canadian Forest Service-Maritimes, a third experiment was established subsequent to a shelterwood harvest near Doaktown, NB. Having somewhat different soils and management regimes, this third installation will compliment the two Ontario studies and broaden inferences drawn from them.

The following document summarizes the research activities and preliminary results to date, primarily for the two Ontario white pine competition studies. Reference will be made to the New Brunswick installation, where relevant. This document is intended to be a supplement to the fact sheets, available on the Partnership website at http://forestreasearch.canadianecology.ca, which detail objectives, experimental design, and methods for these two studies.