12 resources found

This report details a second timber harvest entry conducted on a mule deer winter range in British Columbia, thirty years after the initial logging. The study examines the application of General Wildlife Measures for shallow and moderate snowpack zones, focusing on a clumpy single-tree selection silvicultural system designed to balance timber harvesting with maintaining and enhancing mule deer habitat. Key aspects explored include the planning and operational implementation of this approach, including the creation of small canopy gaps and thinning from below, along with the lessons learned regarding ecological impacts, adherence to regulations, and operational feasibility. The report serves to document this long-term research project's progression and inform future management practices on similar winter ranges.

This paper investigates how different forest harvesting methods impact both the amount of carbon stored and the variety of plant and tree life. The study compared the effects of clearcutting, varying levels of partial tree retention, and no harvesting across different climatic regions in British Columbia's Douglas-fir forests, ranging from humid to semi-arid. The central finding is that the intensity of harvesting significantly influences carbon storage and biodiversity, but importantly, the magnitude of these effects is strongly linked to the regional climate.

This webinar explores the highly contentious management of old growth forests in British Columbia. The consensus among the presenters is that a radical paradigm shift is essential, replacing the current timber-focused system with one that prioritizes ecosystem health and biodiversity. Key themes include the importance of empowering First Nations to lead local planning processes, intense debate over the true extent of remaining old growth data, and the failure of provincial government intent to implement past strategic recommendations. The discussion stresses that adopting an integrated, land-centric approach is the only viable path to stewardship for future generations.

This webinar introduces a new approach to managing the forest-based bioeconomy by challenging the assumptions about biomass supply availability for emerging industries. Dr. Greg Parody details his work on developing integrated open-source modeling frameworks, such as the Candies project, which link robust forest estate models with spatial ecological simulations to move beyond isolated planning. The core objective is advancing open modeling for cumulative effects by including industrial supply chain behavior, ensuring that Annual Allowable Cut projections are grounded in market realities and logistics. The work demonstrates that evaluating the sustainability of forest activities, particularly regarding climate change mitigation, depends entirely on what happens to the logs afterward and the subsequent displacement of other materials.

This paper introduces the retention system, a silvicultural system to align forest management with the principles of ecosystem management, moving beyond a singular focus on sustained production of timber. This system is specifically designed to implement the variable retention approach to harvesting, which prioritizes retaining trees and structures for ecological objectives, such as maintaining structural heterogeneity and protecting biological legacies. The paper argues for the necessity of this new terminology to clearly convey the intent of management where the maintenance of ecological complexity is as crucial as traditional yield expectations, acknowledging that these goals may reduce timber productivity. The retention system is defined by its requirement to maintain long-term structural diversity and ensure forest influence over the majority of the harvested area.

This documentinvestigates the growth dynamics of mixed broadleaf-conifer stands and a push for improved forest management that better reflects multiple objectives, as outlined in the Forest and Range Practices Act. The report achieves this by reviewing existing literature on the silvicultural traits and competitive interactions of both planted conifers and naturally regenerating broadleaf species in the northern interior, alongside the ecological and silvicultural benefits of retaining broadleaves. The study proposes alternative free-to-grow criteria specifically designed to encourage the retention of broadleaf species in the Prince George, Robson Valley, and Mackenzie Timber Supply Areas, aiming for implementation within BCTS Prince George's Forest Stewardship Plan.

This document investigates the economic viability of commercial thinning in second-growth forests on British Columbia's coast. Using the TIPSY 4.2 modeling software, the author simulates various scenarios by inputting existing forest data and economic variables to predict stand yields and financial outcomes. While acknowledging the environmental and silvicultural benefits of commercial thinning (like improving stand quality, accelerating wood volume, and enhancing biodiversity) the study's initial findings suggest that, under current conditions, commercial thinning is not economically feasible. However, it also explores the potential for future use, considering factors such as different thinning intensities, harvesting methods, and the impact of government assistance programs.

This paper explores strategies to mitigate timber supply shortages in British Columbia (BC), a problem exacerbated by climate change and past natural disturbances like the mountain pine beetle outbreak. The authors investigate two primary forest management approaches: commercial thinning and diverse plantings, including assisted species migration. By simulating the long-term effects of these interventions in a case study area, the study concludes that combining commercial thinning with species diversification offers the most promising solution to sustain future timber supply in BC, emphasizing the importance of adaptive forest management in the face of environmental challenges.

The Malcolm Knapp Research Forest mission is to provide a world class environment for research and education in forestry and allied sciences. It is located near Maple Ridge and is close enough to UBC campus for students to visit for field trips or project work. The UBC Malcolm Knapp Research Forest has a thriving research community which includes professional researchers and students from several UBC faculties, from Simon Fraser University, from BC's provincial government, and from the Canadian federal government. Since the establishment of the Research Forest, over 900 research projects have been initiated on the land-base, and more than 100 of these are still active. Many of these active projects are long-term in nature, spanning close to 50 years and including some of the most extensive datasets in western North America. While the majority of the projects focus on different aspects of forestry and forest management, several of the more recent projects touch on other, unrelated fields, such as astronomy and forensic entomology. The last 10 years has seen a shift in the focus of forestry research, from projects looking predominantly at maximizing growth and yield in managed forests, to projects which are more concerned with measuring impacts of different forest practices on the ecology of our forests. Studies of growth and yield continue, however, and these projects include some of the longest datasets the research forest has. For a full list of research projects being pursued at the Research Forest, please check the Research Projects Database found at https://rpd.forestry.ubc.ca/auth

The Alex Fraser Research Forest is located near Williams Lake and showcases sustainable forest management practices in a range of forest ecosystems of the B. C. Interior. It provides long-term site security for research projects, inexpensive researcher accommodation, and an outdoor classroom for both education and demonstration.

This document investigates how partial harvesting strategies, designed to enhance mule deer habitat and allow timber extraction in British Columbia's dry Douglas-fir forests, impact complex interactions with natural disturbances like insect outbreaks and wildfires. The study, spanning 30 years, found that while short-term harvesting altered forest structure and reduced the immediate risk of crown fires and Douglas-fir beetle infestations, many of these structural and susceptibility changes reverted over the long term. The removal of harvesting residuals proved more significant in mitigating long-term disturbance risks, particularly for Douglas-fir beetles and intense surface fires, than the time elapsed since the treatment itself. The authors conclude that sustainable forest management integrating timber extraction and mule deer habitat conservation is achievable if partial harvesting occurs at intervals of 30 years or less and residuals are promptly cleared.

This report explores the challenges of forest management planning in British Columbia under the uncertainty of climate change. Recognizing that no single climate change prediction is definitive, the authors develop a conceptual framework using a robustness approach. Instead of seeking an optimal plan for a specific future, they aim to identify good-enough plans that perform reasonably well across a range of potential climate scenarios. The study uses the Quesnel Timber Supply Area as a case study, focusing on balancing timber supply and tree species diversity goals through multi-criteria decision analysis, considering both a status quo and an adaptation-focused forest renewal option.