Forest Investment Account

Abstract of FIA Project Y051064

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Effects of young stand silviculture on conifer/broadleaf mixtures in seral ICH forests of southern interior BC

Author(s): Simard, Suzanne W.
Imprint: Vancouver, B.C. : University of British Columbia, 2005
Subject: Forest Investment Account (FIA), Forest Thinning, British Columbia, Experiments, Betula, Pseudotsuga Menziesii, Growth
Series: Forest Investment Account (FIA) - Forest Science Program

Abstract

The overall objective of this project is to test birch competition thresholds (for Douglas-fir productivity) experimentally derived by Simard et al. (2001) and as described in the current free-growing guidelines (acceptable broadleaf densities) for British Columbia (B.C. Min. For. 2000). It is comprised of four studies that experimentally test for birch threshold densities, that examine brushing methods for achieving those densities, and that study the effects of birch brushing and site preparation practices on conifer performance, Armillaria root disease, and soil chemical, physical and biological properties. These four studies are called the (a) Site Preparation Study, (b) Soil Transfer Study, (c) Radii Study (Crop-tree Response to Manual and Chemical Brushing at Various Radii), and (d) Birch/Conifer Thinning Study. In 2004-05, we collected tree, disease and soil data for the Site Preparation Study, Soil Transfer Study, and Birch/Conifer Thinning Study, and analyzed all of the results. We have completed draft journal article manuscripts for the Soil Transfer Study, Radii Study, and Birch/Conifer Thinning Study. We have prepared a report summarizing the results for the Site Preparation Study, after receiving the final soil analysis data sets in March 2005, and this report will form the basis for a journal article to be completed in 2005-06 as planned. In addition to these draft articles and report, we have also produced draft manuscripts for two Extension Notes and one LINKS newsletter as planned.


For further information, please contact Suzanne Simard, University of British Columbia (suzanne.simard@ubc.ca)

Updated September 08, 2005 

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