14 resources found

Tags: Natural disturbances

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  • Extension Note

    Considerations for Rehabilitating Naturally Disturbed Stands Part 2 Stand Level Treatments and Hydrological Equivalent Clearcut Area

    This extension note focuses on the hydrological equivalent clearcut area as a tool for managing forests in British Columbia that have been affected by natural disturbances like mountain pine beetle infestations. It explores how different stand-level...
    This extension note focuses on the hydrological equivalent clearcut area as a tool for managing forests in British Columbia that have been affected by natural disturbances like mountain pine beetle infestations. It explores how different stand-level treatments, such as salvaging timber and replanting, can influence ECA over time compared to leaving stands unsalvaged. The author examines the contributions of various stand components-including surviving trees, dead snags, and regeneration-to ECA and compares the cumulative hydrological effects of different management strategies using ECA years. The document provides a decision framework to help forest managers consider hydrological values, especially when detailed assessments aren't possible, while also acknowledging other important ecological and economic factors in rehabilitation decisions.
  • Case Study

    Disturbance Regimes in Coastal British Columbia

    This paper challenges the traditional view that stand-initiating fires are the dominant disturbance regime in British Columbia's wet coastal temperate rainforests. Through a comprehensive literature review and analysis of empirical data, the authors ...
    This paper challenges the traditional view that stand-initiating fires are the dominant disturbance regime in British Columbia's wet coastal temperate rainforests. Through a comprehensive literature review and analysis of empirical data, the authors argue that fine-scale gap dynamics, resulting from the death of individual or small groups of trees, is the primary process shaping these forests. They present four lines of evidence supporting this, including the prevalence of old-growth forests dominating the landscape, the infrequency of historical fires, and the biophysical conditions that limit fire spread. The paper emphasizes that a better understanding of these natural disturbance patterns, particularly gap dynamics, is crucial for developing sustainable forest management and conservation strategies in British Columbia.
  • Guidance Document

    Adjusting Free Growing Criteria for Broadleaves in the Northern Interior of British Columbia

    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 reviewi...
    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.
  • Peer-Reviewed Literature

    Canadian Forests Are More Conducive to High-Severity Fires in Recent Decades

    This paper investigates the factors influencing wildfire burn severity across Canada. Using statistical models applied to environmental data from 1981 to 2020, the authors identify fuel aridity as the most significant driver of how severely forests b...
    This paper investigates the factors influencing wildfire burn severity across Canada. Using statistical models applied to environmental data from 1981 to 2020, the authors identify fuel aridity as the most significant driver of how severely forests burn. Their analysis reveals that northern regions and summer months are particularly prone to high-severity fires, and they found a concerning trend of increasingly favorable conditions for severe burning in recent decades, particularly in spring and autumn. The study concludes that changing climates are making Canadian forests more susceptible to intense fires, highlighting the need for improved fire management and preparedness strategies.
  • Training

    Forest Health Management Certificate

    The Forest Health Management micro-certificate will teach professionals how to detect, diagnose, and manage forest health issues caused by insects and diseases. Through four sequential courses, learners will explore insect and disease biology, ecolog...
    The Forest Health Management micro-certificate will teach professionals how to detect, diagnose, and manage forest health issues caused by insects and diseases. Through four sequential courses, learners will explore insect and disease biology, ecology, identification, and mitigation strategies. The program emphasizes early detection and response to forest health threats, which are increasingly influenced by climate change and globalization.
  • Peer-Reviewed Literature

    Context-Dependent Disturbance Synergies Subcortical Competitors May Constrain Bark Beetle Outbreaks Following Wildfires

    This paper explores how wildfires and beetle communities interact to influence Douglas-fir beetle outbreaks in British Columbia's forests. Traditionally, DFB populations are expected to surge after fires due to an abundance of weakened trees, but th...
    This paper explores how wildfires and beetle communities interact to influence Douglas-fir beetle outbreaks in British Columbia's forests. Traditionally, DFB populations are expected to surge after fires due to an abundance of weakened trees, but this study reveals a more complex dynamic. The presence of woodboring beetles, which also colonize fire-injured trees, can significantly constrain DFB population growth through interspecific competition. Specifically, when woodborers infest over 50% of trees in a stand, DFB reproduction falls below replacement levels, suggesting that these competitors can suppress potential DFB irruptions and ultimately influence forest resilience after disturbances.
  • Peer-Reviewed Literature

    Managing Wildlife Habitat Complex Interactions with Biotic and Abiotic Disturbances

    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...
    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.
  • Case Study Peer-Reviewed Literature

    Short-Term Impacts of Operational Fuel Treatments on Modelled Fire Behaviour and Effects in Seasonally Dry Forests of British Columbia Canada

    This paper investigates the effectiveness of various fuel treatments in mitigating wildfire behavior in British Columbia's seasonally dry forests, a region increasingly vulnerable to extreme fires. Through field measurements and fire behavior modelin...
    This paper investigates the effectiveness of various fuel treatments in mitigating wildfire behavior in British Columbia's seasonally dry forests, a region increasingly vulnerable to extreme fires. Through field measurements and fire behavior modeling, the study assessed how different combinations of thinning, pruning, and residue fuel management impact the potential for crown fires and tree mortality. Key findings suggest that high-intensity thinning is more effective at reducing both passive and active crown fire potential and tree mortality compared to low-intensity thinning, while pruning after thinning offered little additional benefit. The study also highlights that chipping or pile burning residue fuel can reduce crown fire risk, but cautions that chipping may lead to delayed tree mortality not captured by current models, indicating a need for further research on its long-term effects.
  • Guidance Document

    Harvesting and Thinning Guidance for Treatments in Wildland-Urban Interface Areas of TSA 29

    This document provides guidance on harvesting and thinning treatments within Wildland-Urban Interface areas, specifically focusing on reducing wildfire risk in British Columbia. It details a multi-step planning process for Community Wildfire Protect...
    This document provides guidance on harvesting and thinning treatments within Wildland-Urban Interface areas, specifically focusing on reducing wildfire risk in British Columbia. It details a multi-step planning process for Community Wildfire Protection Plans, emphasizing the analysis of land features, existing values like public safety and wildlife habitat, and long-term visions for a fire-resilient forest dominated by Douglas-fir. The report also presents case studies illustrating various fuel reduction methods and their associated costs, alongside operational considerations and responses from professionals regarding logging systems, fuel management, and funding challenges. This document delves into fire behavior modeling to inform best practices for achieving target fuel loadings and canopy base heights, while also highlighting policy conflicts that hinder cost-efficient implementation of these crucial wildfire mitigation strategies.
  • Peer-Reviewed Literature

    Walking on Two Legs a Pathway of Indigenous Restoration and Reconciliation in Fire-Adapted Landscapes

    This paper introduces walking on two legs, an Indigenous framework for ecosystem restoration and reconciliation in fire-adapted landscapes, particularly in Western Canada. The concept advocates for balancing Indigenous knowledges with Western scienti...
    This paper introduces walking on two legs, an Indigenous framework for ecosystem restoration and reconciliation in fire-adapted landscapes, particularly in Western Canada. The concept advocates for balancing Indigenous knowledges with Western scientific knowledge, ensuring that Indigenous perspectives and stewardship ethics guide the interconnected processes of restoration and reconciliation. The authors argue that genuine reconciliation requires Indigenous-led restoration of lands, knowledges, and cultures, moving beyond simply integrating Indigenous knowledge into existing Western frameworks. This approach aims to rebuild respectful relationships between people and the land, addressing the legacies of colonialism and revitalizing Indigenous practices like fire stewardship.
  • Peer-Reviewed Literature

    Community Forests Advance Local Wildfire Governance and Proactive Management in British Columbia Canada

    This paper examines how community forests in British Columbia, Canada, are transforming wildfire governance by shifting away from traditional, centralized, and reactive approaches toward proactive, locally-driven management. The authors highlight th...
    This paper examines how community forests in British Columbia, Canada, are transforming wildfire governance by shifting away from traditional, centralized, and reactive approaches toward proactive, locally-driven management. The authors highlight that CFs, which are long-term forest tenures managed by Indigenous and/or local communities, act as local leaders in mitigating wildfire risk. Their success hinges on crucial factors such as financial and social capacity, particularly the ability to build trust and strong relationships with both community members and government agencies. Despite persistent challenges, the study concludes that CFs are a critical form of local wildfire governance, effectively implementing diverse strategies and fostering a fire lens in forest management to enhance wildfire resilience across various scales.
  • Peer-Reviewed Literature

    Boundary Spanners Catalyze Cultural and Prescribed Fire in Western Canada

    This paper highlights the crucial role of boundary spanners in addressing the escalating challenge of wildfires in Western Canada. These individuals and organizations bridge critical gaps, spanning different knowledge systems, organizations, and geog...
    This paper highlights the crucial role of boundary spanners in addressing the escalating challenge of wildfires in Western Canada. These individuals and organizations bridge critical gaps, spanning different knowledge systems, organizations, and geographical areas, to foster collaboration and implement proactive fire management strategies, such as cultural and prescribed burning. The authors emphasize that despite the vital work of boundary spanners in building trust, sharing knowledge, and developing capacity, their contributions are often undervalued and lack sufficient institutional support. The piece concludes by asserting the urgent need for dedicated investment in boundary spanning roles to effectively integrate diverse expertise and facilitate collaborative, equitable solutions for wildfire management.
  • Peer-Reviewed Literature

    The 2023 wildfires in British Columbia Canada impacts drivers and transformations to coexist with wildfire

    This paper analyzes the record-breaking 2023 wildfires in British Columbia, detailing their significant ecological and social impacts, which are seen as the result of a century of altered relationships with fire intensified by climate change. The aut...
    This paper analyzes the record-breaking 2023 wildfires in British Columbia, detailing their significant ecological and social impacts, which are seen as the result of a century of altered relationships with fire intensified by climate change. The authors argue for an urgent transformative shift towards coexisting with wildfire, moving beyond suppression to embrace its ecological role and Indigenous stewardship practices. The paper proposes six interrelated strategies to achieve this coexistence: diversifying wildfire response, increasing suppression capacity, mitigating community risk, implementing landscape fire management, transforming wildfire governance, and strengthening expertise. This paper emphasizes the need for a holistic, all-of-society approach involving policy changes, sustained funding, and collaboration to build resilience against future extreme wildfires.
  • Peer-Reviewed Literature

    The Right to Burn Barriers and Opportunities for Indigenous-Led Fire Stewardship in Canada

    This paper examines the critical role of cultural burning practiced by Indigenous Peoples in managing ecosystems and reducing wildfire risks. Despite its ecological benefits and long history, the paper highlights significant barriers hindering the re...
    This paper examines the critical role of cultural burning practiced by Indigenous Peoples in managing ecosystems and reducing wildfire risks. Despite its ecological benefits and long history, the paper highlights significant barriers hindering the resurgence of Indigenous fire stewardship, including legal and governance obstacles, lack of access to training and accreditation, liability and insurance issues, and insufficient resources. The authors argue for the necessity of decolonizing wildfire management by recognizing Indigenous knowledge systems, respecting Indigenous governance, and creating pathways for Indigenous-led fire stewardship to ensure more effective and socially just coexistence with fire in Canada. The paper calls for concrete actions to support and empower Indigenous communities in leading fire management on their territories.