Forest Investment Account (FIA) - Land Base Investment Program
FIA Project 6453005

    Progress report: variable retention windthrow monitoring project 2001 to 2006
Project lead: Cascadia Forest Products Ltd.
Author: Muller, Reinhard
Imprint: Nanaimo, B.C. : Cascadia Forest Products Ltd., 2006
Subject: Forest Investment Account (FIA), Trees, Effect of Wind On
Series: Forest Investment Account (FIA) - Land Base Investment Program
The Variable Retention Windthrow Monitoring project has been ongoing for five years, the first two years as a pilot study. The overall project objectives are: Document the amount of windthrow associated with VR. Document the spatial distribution or patterns of windthrow associated with VR. Document regional differences in the extent of windthrow associated with VR. Identify the qualitative and quantitative factors associated with VR windthrow including both environmental factors and treatment effects. Identify specific management options to control windthrow associated with VR. Develop field indices and decision-making tools to enhance windthrow hazard assessments. Communicate the results to operations staff. During the fifth year of the study, an additional 341 plots were established in North Island Timberlands, Port McNeill Timberlands and Stillwater Timberlands and plots in three blocks sampled early in the program were re-sampled.
submitted by Cascadia Forest Products Ltd.


Windthrow Monitoring Report (0.3Mb)

To view PDF documents you need Adobe Acrobat Reader, available free from the Adobe Web Site.

Updated August 16, 2010 

Search for other  FIA reports or other Ministry of Forests and Range publications.

Please direct questions or comments regarding publications to