Forest Investment Account

Abstract of FII Project R04-075

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Long-term effects of vegetation management treatments on growth and yield and stand development

Author(s): Simard, Suzanne (University of British Columbia)
Subject: Ecology, Forestry, Silviculture/Forest Management Systems
Series: Forest Investment Account (FIA) - Forest Science Program


The PROBE (PRotocol for Operational Brushing Evaluations) project has gathered information about the effects of operational brushing treatments on conifer seedlings and vegetation in southern interior BC since 1991. Ongoing measurements on experimental sites provide information about the effects of brushing treatments on seedling establishment and growth, and are becoming increasingly valuable as the length of time since treatment increases. This is especially true for broadleaf complexes that affect conifers for extended periods; work outlined in this proposal enables 10-year data collection in the Mixed Broadleaf-Shrub complex. Existing PROBE sites also have the potential to provide valuable long-term data about the effects of brushing on conifer growth and yield, stand dynamics, and plant community development and diversity. No long-term data of this nature currently exists in BC. For selected PROBE sites, we propose to install and measure Permanent Measurement Plots on existing sites in the Mixed Broadleaf-Shrub and Aspen complexes.

For further information, please contact Suzanne Simard, University of British Columbia (

Updated September 08, 2005 

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