182 resources found

This document is a detailed inventory of numerous forestry research projects across British Columbia. It systematically catalogues various long-term studies examining different silvicultural systems, which are methods for managing forest growth and harvesting timber. The document is structured geographically, listing trials in the Southern Interior, Northern Interior, and Coast regions, as well as smaller, province-wide trials, university research forests, demonstration areas, and operational case studies. For each listed project, the document typically provides information such as the establishment year, location, ecological zone, tested silvicultural systems (like clearcutting, shelterwood, and group selection), trial objectives (e.g., impacts on regeneration, wildlife, or disease), and often a list of associated publications and contact information, highlighting the extensive research network in the province.

This case study details a research project investigating alternative silvicultural systems to clearcutting in the steep-sloped old-growth forests of the Queen Charlotte Islands (now Haida Gwaii). The study, initiated in 1992, compared the effects of single-tree selection, two levels of group selection, and clearcutting on regeneration (both natural and planted) and residual stand characteristics over a seven-year period. Key findings address the effectiveness of these methods in promoting the regeneration of western hemlock, Sitka spruce, and western redcedar, as well as the impact on residual tree damage and browsing pressure from Sitka black-tailed deer, ultimately aiming to inform sustainable forest management practices in this sensitive ecosystem.

This report details a research project in the dry Douglas-fir forests of central British Columbia, initiated in 2001 at Farwell Canyon. The study investigated the effects of partial cutting on forest stand dynamics, specifically examining how different harvesting methods, coupled with pre-commercial thinning and prescribed burning, could achieve objectives like improved wildlife forage, enhanced residual tree growth, and increased fire resilience. The report presents data collected over 10-14 years following these treatments, analyzing changes in stand structure, tree growth, and regeneration patterns to assess the long-term outcomes of these forest management techniques in this specific ecosystem.

This paper examines the costs and productivity of different timber harvesting methods in the interior wet-belt of British Columbia, specifically focusing on maintaining habitat for mountain caribou. The study compares group selection harvesting, where small patches of forest are removed, with clearcutting and single-tree selection. Its primary purpose is to document the economic implications of a harvesting approach designed to balance timber extraction with the ecological needs of caribou in old-growth cedar-hemlock forests.

This paper explores the effects of partial cutting, a forest management technique aimed at creating stands similar to natural uneven-aged forests, on wildlife trees and coarse woody debris in the wet forests of interior British Columbia. The authors introduce a new classification system based on functional habitat features ("Types") of these dead and dying wood components that are crucial for various wildlife species. By presenting preliminary data from a long-term study, the paper investigates how different partial cutting methods, specifically single tree selection and group selection, influence the occurrence of these vital habitat structures, ultimately seeking to inform forest management practices for biodiversity conservation.

This document investigates how the initial planting density, or espacement, affects the growth of a 27-year-old Sitka spruce plantation in British Columbia. The study examines various stand characteristics, including tree height, diameter, volume, and crown development across different planting densities ranging from 478 to 2990 stems per hectare. The core purpose is to provide foresters with data on optimizing stocking levels for Sitka spruce to enhance timber production and manage stand characteristics more effectively, suggesting a recommended range of 800 to 1400 stems per hectare for saw timber objectives. The findings highlight a trade-off: wider espacements produce larger individual trees and branches, while closer espacements yield a greater total volume per hectare when considering all trees in the stand.

This presentation focuses on the establishment and growth of aspen stands within the Sub-Boreal Spruce zone of British Columbia. It draws upon existing research to discuss key factors influencing aspen regeneration, including the importance of removing apical dominance through disturbances like logging or fire to promote suckering. The presentation also details harvest considerations, such as the benefits of winter harvesting and the negative impacts of excessive canopy retention and soil compaction. The presentation explores the effects of various silvicultural practices and the interactions between aspen and coniferous species like spruce and pine, providing guidance on site selection and stockingregeneration surveys for successful aspen management.

This study investigates alternative forestry practices to mitigate the negative impacts of conventional clearcutting on caribou habitat. Recognizing that clearcutting leads to habitat loss and increased predation on caribou through apparent competition, the report reviews various silvicultural systems and harvesting techniques, analyzing their potential to maintain old-growth characteristics, limit forage for other ungulates, and minimize access. Through a literature review and expert interviews, the study assesses the applicability of methods like partial harvesting, understory protection, and intensive silviculture in the Alberta context, considering ecological, economic, and practical challenges. The report aims to identify strategies that balance timber harvesting with caribou conservation, acknowledging that site-specific conditions and careful implementation are crucial for the success of any alternative approach.

This document summarizes key findings from two long-term silvicultural research initiatives: the Montane Alternative Silvicultural Systems study and the Variable Retention Adaptive Management experiments. The MASS study, spanning 25 years, compared clearcutting to various alternative methods, revealing that tree growth was best in clearcuts, though other methods offered biodiversity benefits and paved the way for variable retention. The VRAM research explored different retention strategies, identifying windthrow as a significant challenge and demonstrating that retention provides crucial life-boating habitat for various species, with the amount, aggregation, and size of retained areas being critical factors. The research highlights that while increased canopy retention and dispersion can impact tree growth, these alternative systems offer important ecological advantages, particularly for understory vegetation and diverse species.

This technical report presents a review of partial-cutting activities in the Nelson Forest Region. The primary purpose is to evaluate the potential of partial cutting to reduce annual cut levels, specifically focusing on how different partial-cutting silvicultural systems impact timber and non-timber values. It analyzes historical logging data from various districts within the region to understand past practices, identify discrepancies in data, and suggest more effective strategies for forest management and harvest scheduling that could lead to increased flexibility and improved non-timber benefits.

This technical report presents a retrospective investigation of partial cuts within the Golden Forest District. The primary purpose of the study was to explore the relationship between regeneration density and various site factors following partial harvesting. Researchers found that while abundant natural regeneration occurred, its success was not strongly correlated with specific harvest treatments, but rather more significantly influenced by factors like brush potential and site preparation. The report recommends guidelines for residual basal area levels to optimize seed supply and moisture protection in these forest ecosystems.

This document outlines the corporate and operational implementation of VR, including specific targets and zoning strategies, alongside a monitoring framework to ensure intended ecological outcomes are met. The document asserts that VR is crucial for future forest management as it aligns with broader BC initiatives for biodiversity and ecosystem health.

The Sustainable Forest Management certificate is a flexible, career-focused program designed for forestry professionals aiming to advance their skills or pursue Registered Professional Forester designation. Delivered through three stackable micro-credentials, the program covers forest ecology, silviculture systems, harvesting practices, and forest health management. Learners gain practical, applied knowledge to assess forest disturbances and implement sustainable management strategies.

The Aleza Lake Research Forest is a 9000 ha university-based outdoor research facility and working forest 60 km east of Prince George, BC. The mandate of the Research Forest is to provide research and education facilities and opportunities to the University of Northern BC and other institutes, universities, government agencies, private sector research, schools and other educational groups with regards to ecosystem and resource management studies within the wet sub-boreal spruce biogeoclimatic zone. The research and education programs are multidisciplinary with an emphasis on: Partial cut harvest systems, Biological Diversity, Climate Change and Environmental Monitoring in Small Forest Tenures. The Aleza Lake Research Forest provides a location for field research and education, and also facilitates the development, implementation and evaluation of research and education programs with the user groups.

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.