Petawawa Research Forest - Resistance

Treatment: maintain relatively unchanged conditions over time

Desired Future Conditions

The goal of this treatment is to achieve the Desired Future Condition (DFC) with mild deviation from standard strategies & approaches at the Petawawa Research Forest
Conceptual diagram of the Resistance – Resilience – Transition (RRT) framework applied to the ASCC Network, positioned vertically along a spectrum of ecological persistence to change (i.e., adaptation). The y-axis presents the degree of alignment with current conditions relative to the future range of acceptable outcomes (i.e., desired future conditions). Graphic by Kailey Marcinkowski, Northern Institute of Applied Climate Science.

Management Goals

Resistance at the PRF includes management to achieve the DFC with mild deviation from standard
strategies & approaches. Photo Credit: Mike Hoepting, Natural Resources Canada.
  • Regenerate a well-stocked, productive, pine-dominated stand (white pine and other drought-tolerant species common to the site)
  • Maintain or increase production of high quality sawlogs and other forest products
  • Manage for wildlife habitat and mitigation of pests through partial harvesting and planned retention of the original overstory species
  • Establish white pine adapted to future climate conditions

Strategies & approaches

  • Two-cut shelterwood
      • Seed cut, 12-14 m2/ha residual (129-151 ft2/acre) basal area
      • Final cut when height of white pine regeneration is 6 meters, 600 stems/ha (243 stems/ acre) of desirable species; approx. 20 years
  • Mechanical site preparation (MSIP) following the seed cut for slash management and seedbed creation
  • Chemical site preparation (CHSIP) 1 year after MSIP for understory vegetation management
  • In autumn following CHSIP, plant 1250 seedlings/ha (500 seedlings/acre)
      • 250 local white pine
      • 300 white pine optimized for 2011-2040 climate
      • 350 white pine optimized for 2041-2070 climate
      • 350 white pine optimized for 2071-2100 climate
  • Allow for natural regeneration of white pine, red pine, red oak and spruce.
  • Tending as needed to ensure survival and growth of target species
  • Thinning (pre- and/or commercial) to accelerate sawlog production
  • Final rotation in 80-100 years

Site Leads & Partners

The Petawawa Research Forest ASCC study is led by Natural Resources Canada: Dr. Trevor Jones (Research Scientist), Dr. Nelson Thiffault (Research Scientist), Jeff Fera (Forest Research Officer), Michael Hoepting (Silviculture Research Forester), and Tim Barsanti (Forest Technologist) . Additional collaborators include Dr. Lisa Venier (Natural Resources Canada) and Dr. Junior Tremblay (Environment and Climate Change Canada), who are conducting songbird and wildlife usage monitoring with autonomous recording units (ARUs) and camera traps. A three-day workshop to initiate planning of the PRF ASCC site was hosted by The Canadian Institute of Forestry, FPInnovations, and Friends of the Petawawa Research Forest, July 16-18, 2019 in Pembroke, ON.  Staff from these organizations as well as researchers and practitioners from the following organizations were part of the team that developed the trial treatments at the workshop and may have long-term involvement in the trial.

Government and Academia:

  • Natural Resources Canada, Canadian Forest Service
  • Ontario Ministry of Natural Resources
  • University of Toronto 

Forest Industry:

  • Algonquin Forestry Authority
  • Ottawa Valley Forest Inc.
  • Westwind Forest Stewardship Inc.

Dr. Trevor Jones
Site Lead

Research Scientist
Natural Resources Canada,
Canadian Wood Fibre Centre
1219 Queen Street East Sault Ste. Marie, Ontario, P6A 2E5
Phone: 705-541-5610
trevor.jones3@nrcan-rncan.gc.ca

Dr. Nelson Thiffault
Petawawa Research Forest ASCC Site Research Scientist

Research Scientist
Natural Resources Canada,
Canadian Wood Fibre Centre
1055 du P.E.P.S., Sainte-Foy, Québec, QC, G1V 4C7
Phone: 418-454-1976 nelson.thiffault@nrcan-rncan.gc.ca

Jeff Fera
Petawawa Research Forest ASCC Site Forestry Research Officer

Forest Research Officer
Natural Resources Canada,
Canadian Wood Fibre Centre
1219 Queen Street East Sault Ste. Marie, Ontario, P6A 2E5
Phone: 705-541-5616
jeff.fera@nrcan-rncan.gc.ca

Michael Hoepting
Petawawa Research Forest ASCC Site Silviculture Research Forester

Silviculture Research Forester
Natural Resources Canada,
Canadian Wood Fibre Centre
1219 Queen Street East Sault Ste. Marie, Ontario, P6A 2E5
Phone: 705-541-5687 michael.hoepting@nrcan-rncan.gc.ca

Tim barsanti
Petawawa Research Forest ASCC Site Forest Technologist

Forest Research Technologist
Natural Resources Canada,
Canadian Wood Fibre Centre
1219 Queen Street East Sault Ste. Marie, Ontario, P6A 2E5
Phone: 705-541-5687
tim.barsanti@nrcan-rncan.gc.ca