78 resources found

This extension note investigates recent changes in aboveground live-tree carbon within spruce and fir-dominated sub-boreal forests in the interior of British Columbia. The study specifically re-evaluated carbon stocks between 20032004 and 2018 at the Aleza Lake Research Forest to understand how carbon storage is impacted by tree species and size. The authors found that while younger forest stands generally accumulated carbon, older stands with larger trees showed a decline in aboveground live-tree carbon, largely due to increased mortality of these large trees. This highlights a critical concern regarding the role of mature forests in carbon sequestration amidst accelerating climate change and increasing tree mortality rates.

This research compiles and analyzes a national database of dead and down woody debris to improve fire behavior and effects modeling in Canadian forests. The study emphasizes that DWD is a major component of surface fuels, significantly impacting fire intensity, consumption, and the transition to crown fires. By examining various forest types and ecozones, the authors identified key predictive variables such as bioclimatic regime, age, and structural components. This work provides crucial tools for a more accurate understanding of DWD distribution across Canada, enhancing the country's ability to forecast and manage wildfires.

This guide serves as a practical manual for foresters looking to implement the shelterwood cutting method in British Columbia. As the third part of a three-part series, this guide builds upon previous parts by focusing on the specific harvesting operations involved in this silvicultural system. The guide emphasizes that each harvest entry is a deliberate silvicultural treatment designed to manipulate the forest environment to achieve regeneration and stand-tending objectives, highlighting key considerations like protecting the soil, existing trees, and new growth while promoting a favorable environment for the next forest generation.

This guide delves into the fundamental ecological principles underpinning the successful application of the shelterwood silvicultural system in British Columbia. As the second part of a three-part series, this guide emphasizes that effectively using partial cutting methods like shelterwoods requires a strong understanding of stand dynamics, which involves how forest structure changes over time due to factors such as tree regeneration, growth, competition, and disturbance. The guide highlights the crucial role of regeneration ecology, exploring the necessary conditions for new trees to establish and thrive after silvicultural interventions. This resource aims to equip forest managers with the knowledge to manipulate forest stands predictably to achieve specific management objectives by considering the interplay of these ecological processes.

This extension note offers practical guidance on managing paper birch and fireweed in British Columbia's coastal forests, specifically the Coastal Western Hemlock submaritime biogeoclimatic subzones. Recognizing a lack of specific research on these competing vegetation species, the authors synthesize existing knowledge, much of it adapted from interior regions, to provide Stand Establishment Decision Aids. The note details the site characteristics, harvesting and silvicultural considerations, and autecological characteristics of both species, aiming to help forest managers make informed decisions regarding their management to ensure successful conifer regeneration while considering biodiversity and long-term site productivity.

This extension note serves as a decision aid for forest managers in northeastern British Columbia regarding aspen stands. It is structured to provide guidance on managing aspen either as a primary timber species or as a component within mixedwood forests with conifers. The note details various aspects of aspen ecology, including its regeneration, growth, interactions with other species, and its susceptibility to health issues. Furthermore, it outlines different silvicultural systems and management practices tailored to specific objectives, such as maximizing aspen production, promoting conifer growth, or achieving mixed stands, while also considering non-timber values like wildlife habitat and First Nations uses. The extension note aims to equip managers with the knowledge to make informed decisions about establishing and tending aspen-dominated or mixed forests in the region.

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 paper investigates the differential ecological impacts of an extreme 2017 wildfire versus ongoing prescribed burns in Waterton Lakes National Park, AB. The core objective is to understand how reintroducing historical land-use processes, particularly through Traditional Ecological Knowledge, can enhance ecosystem resilience against modern stressors like climate change and invasive species. The study focuses on the Kenow wildfire's high-severity effects on a native-grass prairie compared to lower-severity prescribed burns, suggesting that while prescribed burning is beneficial, incorporating the full historical eco-cultural context, including the role of free-ranging bison and late-season Indigenous burning practices, is crucial for effective ecological restoration. The authors conclude that extreme disturbance is not necessarily catastrophic and that combining TEK with adaptive co-management can create landscapes more resilient to pervasive change.

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 paper presents the long-term ecological effects of forest fuel and restoration treatments from the ongoing national Fire and Fire Surrogate study, analyzing data collected over approximately 20 years across four diverse sites in the Western and Eastern United States. The central goal of the original FFS study was to evaluate how mechanical treatments and prescribed fire impact forest ecosystems by reducing fire hazard, promoting desirable fire-adapted species, and improving understory diversity. Key findings reveal that the most effective treatment varies significantly by region: mechanical treatments combined with fire yielded better long-term outcomes in Western pine-dominated forests, while prescribed burning alone proved more beneficial in Eastern hardwood-dominated forests. The authors conclude that to maintain these desirable conditions and achieve long-term resilience, treatments must be adapted to the specific ecosystem and followed up with repeated applications.

This document outlines best management practices for fuel treatment in the Boreal Fire Weather Zone, characterized by the Boreal White and Black Spruce BEC zone. This document emphasizes that this zone experiences large, intense wildfires often started by lightning, which significantly impact forest succession. The text details how fire suppression has increased flammable older forests, making communities more vulnerable, and classifies the predominant fuel types according to the Canadian Forest Fire Behaviour Prediction System. Finally, it provides comprehensive recommendations for fuel management, including surface, ladder, and crown fuel reduction, along with strategies for maintenance and mitigating impacts on forest health, all aimed at reducing wildfire risk.

This document outlines best management practices for fuel treatment within British Columbia's coastal fire weather zone, encompassing the Coastal Western Hemlock and Coastal Douglas Fir biogeoclimatic zones. It details the ecology of this temperate rainforest, noting that while mature stands typically resist widespread fires due to high moisture and closed canopies, disturbed areas and specific drier zones are more prone to fire, especially with the presence of invasive species. The core purpose is to guide fire management through specific interventions, focusing on surface, ladder, and crown fuel reduction to prevent canopy fires, alongside recommendations for forest health mitigation to prevent pest outbreaks after treatment. The document also references established Canadian Forest Fire Behaviour Prediction System fuel types to characterize fire risk and includes practical examples of post-treatment characteristics from various locations.

This document outlines Best Management Practices for fuel treatment within British Columbia's Central Plateau Fire Weather Zone, a region historically shaped by frequent, stand-destroying wildfires. It details the zone's diverse ecosystems and vegetation, highlighting how species like lodgepole pine thrive in fire-prone areas, while others like Douglas-fir develop fire-resistant bark. The guide also classifies common fuel types using the Canadian Forest Fire Behaviour Prediction system, emphasizing management strategies for surface, ladder, and crown fuels, including techniques like thinning and encouraging deciduous species to reduce wildfire risk. Finally, it provides examples of past fuel management projects and discusses considerations for forest health, such as preventing pest outbreaks and maintaining stand integrity.

This document details the SADO management system, a conservation-focused approach specifically designed for sustaining old-growth characteristics in aspen, birch, and cottonwood forests within British Columbia's SBS zone. Recognizing the relatively short lifespan and successional vulnerability of these deciduous stands, the system provides a step-by-step guide for forest managers. Its core principles revolve around monitoring regeneration, selectively removing conifers, managing herbivore browsing, ensuring adequate light, and addressing regeneration capacity to promote the development of self-sustaining, all-aged stand structures that continuously exhibit old-growth attributes, with a particular emphasis on maintaining ecological values and biodiversity.

This document outlines how participating forestry companies and BC Timber Sales intend to manage forests sustainably, aiming to balance ecological, economic, and social values. The plan incorporates a Canadian Standards Association certification process and emphasizes a landscape-level approach to forest management, considering natural disturbance patterns. Key components include establishing values, objectives, indicators, and targets developed with public and Indigenous input, along with specific strategies for timber harvesting, reforestation, road access, wildlife habitat, and engagement with First Nations and the public. The SFMP serves as a guiding document for operational planning and continuous improvement in forest management practices within the defined area.

This document present a strategy for the utilization and management of deciduous tree species, particularly red alder, big leaf maple, and birch, within the coastal forests of British Columbia. The paper outlines objectives for hardwood management, discusses different management strategies, and considers crucial aspects like timber supply, relevant legislation, and geographic considerations for successful implementation. It serves as a guide for forest professionals and decision-makers to support and expand hardwood management in the region, aiming to diversify the coastal fibre supply and ensure a sustainable flow of timber products.

This document outlines how to integrate wildfire risk reduction into forest regeneration practices. It explains that these standards are modifications of existing reforestation guidelines, tailored to achieve specific fire management objectives, such as reducing crown fire potential and enhancing fire suppression effectiveness, particularly near communities and high-value infrastructure. The document details considerations for developing these standards, including species selection based on fire resilience, stand density management to influence fire behavior, and structural characteristics like canopy base height. It provides a framework and examples for forest professionals to create stocking standards that balance timber production with proactive wildfire management at both local and landscape levels.

This extension note presents findings from investigations into how the mountain pine beetle infestation and subsequent salvage harvesting near streams impact small stream and riparian zone health in British Columbia's Sub-Boreal Spruce zone. The research focused on understanding the riparian stand structure in these affected areas and assessing the influence of both the beetle infestation and harvesting on riparian zones, particularly shade levels and overall stream function. Through basal area studies and a stream health evaluation protocol, the authors aimed to provide short-term answers to guide forest management practices in regions heavily affected by the mountain pine beetle.