Partial Cutting Study

On the Steep Slopes in the CWHvh2

ObjectivesOn the Steep Slopes in the CWHvh2

  • Determine residual stand health, 1992-2006 volume increment and loss of residual stand to windthrow
  • Measure growth of planted regeneration
  • Measure recruitment and growth of natural regeneration
  • Structure and composition of the non-timber understory
  • Use data and growth relationships to calibrate and test growth and yield models
  • Provide guidance for policy, support for decision makers and definition of objectives for improved forest management in the Queen Charlotte Islands and other outer coastal areas.
  • Publication and dissemination of results as extension materials and journal article(s)


  • Provision of firm guidelines for partial cutting practices in the CWHvh2. These guidelines will be used by field foresters planning partial cutting treatments and by decision makers in regulatory agencies for assessing the effectiveness of partial cutting practices and managing silvicultural costs.
  • A better understanding of the effects of partial cutting on stand growth. Analysts will use this information to better estimate timber supply.
  • Assistant in the development and calibration of natural regeneration recruitment and growth models for existing forest growth models.


  • Data collection complete by early winter 2006
  • Analysis and interpretation during winter 2006-’07
  • Contract report, MoFR Technical Report and extension note by March 2007
  • Journal article(s) during 2007

In The Coast-Interior Transition (East Anderson)

ObjectivesIn The Coast-Interior Transition (East Anderson)

  • In the coast-interior transition (Boston Bar) design and demonstrate dispersed retention over a range of densities to improve regeneration success and provide structural attributes for meeting biodiversity objectives.
  • Monitor attributes of interest (including regeneration and remaining overstory), and comparing actual outcomes with forecasts.
  • Develop and apply subsequent treatments necessary to meet target stand objectives making systems operationally relevant.
  • Disseminate results of research to operational staff to guide subsequent harvesting in applicable ecosystem.

Benefits & Relevance

  • Research has highlighting the effect of windthrow in the short and long-term and implications from meeting long-tern stand objectives
  • Interaction between windthrow and bark beetle attack has been highlighted.
  • establishment of Trial area has been a heavily utilized for extension promoting the discussion of alternatives to clearcutting in these ecosystems.
  • Implications of alternatives to regeneration growth have been highlighted.

Key Component

  • Harvesting economics provide harvesting costs for a range of cutting patterns and comparisons to clearcutting and highlighted operational issues
  • Monitoring of residual trees determines the long term fate of trees including description of pattern and abundance of windthrow.
  • Monitoring of understory regeneration describes the development of subsequent stands and implications to meeting free-growing conditions.
  • Science support for development and implementation of FREP
  • Species at Risk recovery team membership and input to policy
  • Reduced funding restricted work in this project since the 1998 / 1999 fiscal year. Priority has been given to the remeasurement of planted and natural regeneration and tours have been provided to District staff interested in initiating partial cutting in the coast-interior transition. A presentation titled Partial Cutting in the Coast-Interior Transition: Seedfall, Regeneration, and Stand Structure Changes was presented in 1997 at the Managing the Dry Douglas-fir Forests of the Southern Interior held in Kamloops.

Rennell Sound Trial: Ensuring Continued Use

ObjectivesRennell Sound Trial: Ensuring Continued Use

  • Relocate historic access trails
  • Restore access through trail brushing
  • Improve worker safety by removing danger trees
  • Add new trails, as necessary


  • Enhancement of worker safety and efficiency through improved access and removal of danger trees
  • Restoration of access and ability to collect further data from an established research installation that is highly relevant to current questions


  • All activities are forecast to be completed by September of 2007
  • Further assessments will be on going