The Timber Growth and Value Program is one of three programs funded by British Columbia’s Forest Investment Account, Forest Science Program (FIA-FSP) to promote sustainable forest management policies and practices in British Columbia. The Timber Growth and Value Program represents a 10-year strategy (2006-2016) that seeks to improve timber growth and value in British Columbia. The program focuses on research addressing key knowledge gaps identified as priorities by the FIA-FSP Forest Science Board. To address this, the Bulkley Valley Research Centre organized and hosted the Timber Growth and Value Conference in February 2008. The research topics presented at the Timber Growth and Value Conference were structured around eight themes identified by the FIA-FSP Timber Growth and Value Program. Although not all projects presented at the conference were associated with FIA-FSP, it was apparent that a number of different agencies and researchers have common interests in continuing to improve sustainable forest management and delivering new information to practitioners, managers, and policy makers. Ultimately, continued interest in these areas and opportunities to share research will generate new management solutions more effectively. The objectives of the conference were to introduce the research and management communities to the state of knowledge regarding timber growth and value, identify operational applications of this knowledge, and provide an opportunity for researchers, practitioners and managers to meet and synthesize current research.


A number of important strategic goals of the FIA-FSP were outlined at the conference. These included strong continued support for research promoting sustainability and improving timber growth and value, guidance in the development of a provincial forest extension program, the development of efficient and effective processes for determining annual priorities, and the encouragement of stable funding. A major emerging challenge of maintaining multi-year project commitments with insufficient funds was addressed at length, suggesting less allocation of funding for current calls for new proposals. The development of the First Nations Forestry Council was identified as a significant step forward in addressing First Nations research priorities and involvement. Active collaboration in the form of partnerships with FIA-FSP was also highlighted as a key to effective incorporation of priorities and funds.


The eight themes outlined by FIA-FSP Timber Growth and Value Program were the focus of the projects presented at the conference.


  • The basic research on tree growth and stand development theme included projects highlighting the importance of understanding basic biological processes in complex stands to improve operational models and decision-support tools.
  • The design and analysis of silvicultural systems theme included a comparison between different silviculture systems and management regimes to measure regeneration potential and maximize timber volume and value in a stand.
  • The growth and yield modeling/predictions theme introduced several approaches to applying and improving models and decision-support tools that predict tree and stand characteristics and relate to the production of timber volume and value.
  • The timber losses to environmental and biotic factors theme described approaches used to measure forest changes. Highlighted were stands recently attacked by the mountain pine beetle (MPB) and their regeneration patterns.
  • The analytical techniques and models for strategic analysis theme introduced a technique developed for integrating various data sources and models for resource analysis or local land-use planning.
  • The marketable resources other than timber theme described the effects of silviculture systems and management practices on non-timber forest products, and the values derived from non-timber forest products.
  • The climate change theme presented new approaches to predict and assess the effects of climate change on stand growth and forest health at multiple scales, ranging from individual tree, to forest and landscape. The forest growth and health concerns included Dothistroma needle blight, MPB, and fire.
  • The forest harvesting and engineering studies on salvaged MPB-killed timber theme included projects related to the design of cost-effective and environmentally appropriate methods of harvesting and hauling of MPB-killed timber.


This conference was made possible through support from FIA-FSP, the Forest Practices Board, Hawkair, Smithers District Chamber of Commerce and SpeeDee. Thanks to the Bulkley Valley Research Centre board for the contribution of their time and staff. Special thanks to Jill Dunbar for coordinating the conference and Dave Wilford for being the conference chair. The Bulkley Valley Research Centre would like to thank Chief Woos (Roy Morris) and the Wet’suwet’en for hosting this event on their territories and for the traditional welcome.



The Proceedings are provided in two different formats:

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Copyright for the following material is primarily held by the presenter.  This source should be fully acknowledged in any citation.  For permission to reproduce or redistribute this material, in whole or in part, please contact the presenter.


1. Downloadable PDF



2. Interactive Site



Presenters Name

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Welcome and introductory remarks

Dave Wilford

Research Forest Hydrologist, Ministry of Forests and Range, Smithers

Conference Chairperson

Conference Introduction

Roy Morris

Chief Woos, Cas'Yex House, Wet'suwet'en Hereditary Chief

First Nations Traditional Welcome

Rick Budhwa

Research Program Manager, Bulkley Valley Research Centre

Welcome from the Bulkley Valley Research Centre


Introductory presentations

Bill Bourgeois

Chair, Forest Science Program Board of Directors

Forest Investment Account - Forest Science Program (FIA-FSP) Overview

Alan Vyse

Chair, Timber Growth and Value Program Advisory Committee

Introduction to the Timber Growth and Value Program

David deWit

Natural Resources Manager, Office of the Wet'suwet'en

First Nations perspectives


Theme 1 - Basic research on tree growth and stand development

Chris Hawkins

FRBC - Slocan Chair of Mixedwood, Edology and Management, UNBC

The benefits of managing complex even aged stands in the SBS

Richard Kabzems

Research Silviculturist, Ministry of Forests and Range, Dawson Creek

Early growth of white spruce underplanted beneath spaced and unspaced aspen stands

in northeastern British Columbia


Lunch time speaker

Frank Doyle

Wildlife Dynamics Consulting

Snowshoe hare damage on underplanted seedlings and strategies to reduce impacts


Theme 1 - continued

Erica Close

Soil & Vegetation Scientist , Bulkley Valley Research Centre

The effects of site type and light availability on height increment of individual juvenile trees


Theme 2 - Design and analysis of silvicultural systems

Roderick Negrave

Research Silviculturist, Ministry of Forests and Range, Nanaimo

Preliminary 15-year results from the Rennell Sound silviculture systems trial


Theme 3 - Growth and yield modelling/predictions

Alex Woods

Regional Pathologist, Ministry of Forests & Range, Smithers

Are free growing stands in the Lakes TSA meeting timber productivity expectations?

James Goudie

Research Leader, Stand Development Modeling, Ministry of Forests & Range, Victoria

TASS III: An enhanced growth and yield model for complex stand structures

Large file

Aaron Trowbridge

Junior Researcher, Bulkley Valley Research Centre

An object-oriented approach for extraction and identification of individual tree crowns
from high resolution aerial images


Theme 4 - Timber losses to environmental and biotic factors (wind, drought, insects, disease,
animal damage, fire)

Gordon Nigh

Research Branch, Ministry of Forests & Range, Victoria

Density and distribution of advance regeneration in the MS biogeoclimatic zone in relation to
site moisture and overstory density

Phil Burton

Associate Professor, UNBC/Pacific Forestry Centre, Canadian Forest Service

Patterns of advanced regeneration in pine-leading stands in the Sub-boreal Spruce zone


Key words after Day 1


Evening program

Jean Cook

Manager of Resources & Composites, FPInnovations - Forintek Division


Theme 4 - continued

Craig DeLong

Regional Ecologist, Ministry of Forests & Range, Prince George

Response of Understory Trees and Vascular Plants to MPB Attack


Jodi Axelson

Forest Biologist, Natural Resources Canada

Stand dynamics following past mountain pine beetle outbreaks in south-central British Columbia


Theme 5 - Analytical techniques and models for strategic analysis

Derek Sattler

Faculty of Forestry, UBC

Using SORTIE-ND and prognosisBC as a linked model to estimate natural regeneration

following MPB attack for complex stands in the southern interior of British Columbia


Theme 6 - Marketable resources other than timber

Wendy Cocksedge

Coordinator, Research & Extension, Centre for Non-Timber Resources, Royal Roads University

Understanding the spatial and quality attributes of culturally important non-timber forest product species

in mountain pine beetle affected areas of the Cariboo-Chilcotin


Theme 7 - Climate change

Lori Daniels

Assistant Professor, Department of Geography, UBC

Fire history of the Southern Rocky Mountain Trench

Postdoctoral Research Fellow, University of Melbourne

Assessing the vulnerability of tree species in the SBS zone to climate change

Large File

Brian Aukema

Research Scientist, Canadian Forest Service, UNBC

Forecasting spread of mountain pine beetle at the landscape level


Large File

Kathy Lewis

Associate Professor, Ecosystem Science and Management, UNBC

The role of climate and topography in the development of Dothistroma septosporum



Theme 8 - Forest harvesting and engineering studies on salvaged MPB

Marvin Eng

Manager, Special Investigations, Forest Practices Board

Tree species harvested in areas affected by mountain pine beetles

FPInnovations - FERIC Division

Harvesting around advanced regeneration

Large File

Ken Hodges

Tenures Forester, Ministry of Forests & Range, Prince George

Secondary structure – an operational perspective

Plus Q&A Nishio


Five minute forums

Rene Alfaro

Phil Burton

Gary Quanstrom


Closing remarks

Dave Wilford



The focus of the Timber Growth and Value Conference was to synthesize current research designed to identify key short- and long-term forest management challenges. The conference also highlighted the value of sharing research and, as a result, the direction for new research. There are several key research needs that have become evident through this conference. Firstly, the need for more spatially explicit information was identified as a requirement for future landscape level research and forest management strategies. Secondly, their is a clear need to improve models designed for use of planners and silviculturists in predicting changes in tree and stand characteristics. Finally, the value of other high-resolution tools (i.e., dendrochronology) in reconstructing historical events, such as climate and fire, and their impacts on forest health was discussed.


The FIA-FSP demonstrated a clear commitment to the development of a research program that promotes continued support of science-based knowledge in sustainable forest management in British Columbia. The focus of FIA-FSP on improving its’ effectiveness as a funding agency was clear and further demonstrated by its commitment to the vision of the program. The opportunity for research and extension collaboration was also requested to assist the program with new research interests and common goals. These partnerships are critical in maintaining the programs commitments to science-based knowledge and application of research.







The Bulkley Valley Research Centre
would like to thank the following organizations for their support with the conference.



© Bulkley Valley Centre, 2004