52 resources found

Tags: Windthrow

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  • Extension Note

    Considerations for Rehabilitation of Naturally Disturbed Forests (MPB) Part 1 Watershed Hydrology

    This extension note serves as a guide for practitioners involved in reforestation efforts following large-scale natural disturbances, particularly those caused by the mountain pine beetle in British Columbia's interior. The document emphasizes the im...
    This extension note serves as a guide for practitioners involved in reforestation efforts following large-scale natural disturbances, particularly those caused by the mountain pine beetle in British Columbia's interior. The document emphasizes the importance of considering watershed hydrology when planning these rehabilitation activities, highlighting potential negative impacts on water resources such as increased runoff, stream sedimentation, and reduced riparian function. It advocates for a cautious approach that includes clear objectives, risk analysis, and coordination with stakeholders to minimize these negative effects and ensure the long-term health of both timber and water-related values.
  • Extension Note

    Successional Responses to Natural Disturbance Forest Management and Climate Change in British Columbia Forests

    This extension note outlines the successional pathways of various forest ecosystems in British Columbia and how these natural trajectories are influenced by natural disturbances, forest management practices, and projected climate change. The document...
    This extension note outlines the successional pathways of various forest ecosystems in British Columbia and how these natural trajectories are influenced by natural disturbances, forest management practices, and projected climate change. The document describes typical post-disturbance development, the impacts of human interventions like harvesting, and potential future shifts due to altered temperature and precipitation regimes. The primary aim is to provide natural resource managers with a concise overview to inform strategies for building resistant and resilient forests in the face of ongoing environmental change.
  • Decision Aid

    Tomentosus Root Rot Forest Health Stand Establishment Decision Aid

    This document serves as a stand establishment decision aid for forest managers in British Columbia dealing with tomentosus root rot, a fungal disease prevalent in spruce and pine forests. It outlines the characteristics and spread of the disease, emp...
    This document serves as a stand establishment decision aid for forest managers in British Columbia dealing with tomentosus root rot, a fungal disease prevalent in spruce and pine forests. It outlines the characteristics and spread of the disease, emphasizing its impact on forest health and productivity through mortality, growth reduction, and windthrow. The guide details how to identify susceptible stands based on species composition and site conditions, discusses methods for assessing disease presence after harvesting, and presents silvicultural considerations like inoculum reduction and the planting of less susceptible tree species to mitigate future issues. The purpose of this document is to inform forest management practices in areas where tomentosus poses a significant risk to ensure healthy and productive future forests.
  • Case Study

    Bringing Adaptation to Ground in British Columbia

    This document examines the impacts of a changing climate on British Columbia's diverse natural ecosystems and proposes conservation-oriented adaptation actions. It highlights the regional variations in anticipated temperature and precipitation change...
    This document examines the impacts of a changing climate on British Columbia's diverse natural ecosystems and proposes conservation-oriented adaptation actions. It highlights the regional variations in anticipated temperature and precipitation changes across the province and emphasizes the need to consider these specific ecological contexts when developing management strategies. Drawing upon a review of existing literature and initiatives like the Future Forests Ecosystem Initiative, the authors present examples of actions categorized under frameworks such as the 5Rs to help natural resource practitioners support the resilience and adaptation of species and ecosystems to future climate conditions. The document advocates for a proactive approach to natural resource management that integrates climate change considerations to ensure the long-term persistence of British Columbia's natural heritage.
  • Extension Note

    The Shelterwood Silvicultural System in British Columbia - A Practitioner's Guide. Part 3 Operational Implementation

    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 oper...
    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.
  • Extension Note

    The Shelterwood Silvicultural System in British Columbia - A Practitioner's Guide. Part 2 The Interplay of Stand Dynamics Disturbance and Regeneration

    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 ...
    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.
  • Extension Note

    The Shelterwood Silvicultural System in British Columbia - A Practitioner's Guide. Part 1 Implementation Considerations

    This guide focuses on the shelterwood silvicultural system in British Columbia and specifically addresses implementation considerations. As the first part of a three-part series, it outlines the advantages and risks associated with this partial cutti...
    This guide focuses on the shelterwood silvicultural system in British Columbia and specifically addresses implementation considerations. As the first part of a three-part series, it outlines the advantages and risks associated with this partial cutting method compared to clearcutting. The guide also delves into crucial aspects like forest health factors and administrative hurdles within the BC forestry context, emphasizing the need for careful planning to manage risks and achieve both timber and non-timber objectives.
  • Extension Note

    Variable Retention Decision Aid for Biodiversity and Habitat Retention

    This extension note serves as a practical guide for forest managers in coastal British Columbia. It introduces the variable retention silvicultural system, a method focused on retaining important ecological features like old trees and snags during h...
    This extension note serves as a practical guide for forest managers in coastal British Columbia. It introduces the variable retention silvicultural system, a method focused on retaining important ecological features like old trees and snags during harvesting to support biodiversity and habitat connectivity. The aid outlines key considerations for planning and implementing VR, including identifying biological anchors, setting retention targets based on landscape context and management objectives, and managing potential risks such as windthrow and dwarf mistletoe, ultimately aiming for sustainable forest management that balances timber harvesting with ecological values.
  • Case Study

    Alternative Silvicultural Systems on Steep-Sloped Old-Growth Forests on the Queen Charlotte Islands Project Overview and Regeneration Development

    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 ...
    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.
  • Case Study

    Cost and Productivity of Alternative Harvesting in BC's Interior Wet Belt Designed to Maintain Cariboo Habitat

    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, wher...
    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.
  • Extension Note

    Using Partial Cutting Timber Harvesting in Methods in a Sensitive Watershed in Southeastern British Columbia

    This extension note details a case study on partial cutting timber harvesting methods within a sensitive watershed in southeastern British Columbia. The study evaluates a multi-resource objective approach to logging, aiming to balance timber producti...
    This extension note details a case study on partial cutting timber harvesting methods within a sensitive watershed in southeastern British Columbia. The study evaluates a multi-resource objective approach to logging, aiming to balance timber production with the conservation of water quality, wildlife habitats, and visual landscapes. It highlights the company's shift from conventional clear-cutting to silvicultural systems that maintain forest health and biodiversity, while also addressing the economic and environmental concerns of the region. The report assesses the effectiveness and challenges of these partial cutting methods in achieving sustainable forest management within a sensitive ecological area.
  • Extension Note

    Partial Cutting Options in Hemlock-Dominated Stands in Southeastern British Columbia the Selkirk College Woodlot Experience

    This document details Selkirk College's experimental shift from traditional clearcutting to variable retention silvicultural systems in their hemlock-dominated demonstration forest. The primary purpose of these experiments was to explore alternative ...
    This document details Selkirk College's experimental shift from traditional clearcutting to variable retention silvicultural systems in their hemlock-dominated demonstration forest. The primary purpose of these experiments was to explore alternative harvesting methods that could maintain water quality, enhance biodiversity and habitat structures, produce quality timber, and provide educational opportunities for students. The document highlights Selkirk College's experiences with various approaches including natural shelterwood with overstory retention, group selection, and a mix of group and dispersed retention to assess their effectiveness in minimizing environmental impacts such as windthrow, and achieving diverse management objectives. A key theme emphasized is the critical role of clear communication between the woodlot manager and harvesting crews for successful implementation of these complex variable retention strategies.
  • Extension Note

    Patch Cutting in Old Growth Forests to Maintain Caribou Habitat

    This extension note details a case study on patch cutting in old-growth forests in British Columbia. The primary purpose of this research was to investigate alternative silviculture systems, specifically patch cutting, as a method to maintain caribou...
    This extension note details a case study on patch cutting in old-growth forests in British Columbia. The primary purpose of this research was to investigate alternative silviculture systems, specifically patch cutting, as a method to maintain caribou habitat. The study aimed to assess the impact of this harvesting technique on the abundance and dispersal of arboreal lichen, a critical food source for caribou, while also considering its effects on windthrow and other forest health factors.
  • Case Study

    Alternative Silvicultural Systems and Harvesting Techniques for Caribou Habitat

    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 competiti...
    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.
  • Guidance Document

    Interior wet fire weather zone

    This guidance document outlines best management practices for fuel treatment within British Columbia's Interior-Wet Fire Weather Zone, a region characterized by its productive forests and diverse tree species like western cedar and hemlock. While typ...
    This guidance document outlines best management practices for fuel treatment within British Columbia's Interior-Wet Fire Weather Zone, a region characterized by its productive forests and diverse tree species like western cedar and hemlock. While typically experiencing higher precipitation and less frequent stand-replacing wildfires, drier subzones are prone to mixed-severity fire regimes. The guide emphasizes managing surface fuels, ladder fuels that allow fire to climb, and crown fuels to reduce the intensity and spread of wildfires, especially given the increased risk from climate change-induced drought and successful fire suppression efforts near communities. The document aims to provide professional guidance for mitigating wildfire threats through strategic fuel management and maintaining forest health.
  • Presentation Slides

    Alternative silvicultural systems (MASS) and variable retention (VRAM) research

    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...
    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.
  • Presentation Slides

    Silvicultural systems in the great bear rainforest under ecosystem based management

    This document outlines the strategic approach to silvicultural systems in the Great Bear Rainforest, focusing on Ecosystem-Based Management. A central theme is the retention silvicultural system, which involves deliberately leaving trees and vegetati...
    This document outlines the strategic approach to silvicultural systems in the Great Bear Rainforest, focusing on Ecosystem-Based Management. A central theme is the retention silvicultural system, which involves deliberately leaving trees and vegetation within harvested areas to maintain forest structure and biodiversity. The application of this system is context-dependent, influenced by the proportion of mature and old forest at both the broader landscape unit and immediate cutblock scales, with increased retention mandated where older forests are scarce. Additionally, the document addresses windthrow considerations at both landscape and stand levels, providing guidelines to mitigate damage while prioritizing the retention system in areas of lower wind hazard.
  • Presentation Slides

    25 years of variable retention implementation on WFP tenure

    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 ...
    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.
  • Peer-Reviewed Literature

    Challenges Facing Gap-Based Silviculture and Possible Solutions for Mesic Northern Forests in North America

    This paper explores the complexities and challenges associated with using gap-based silviculture in the mesic northern forests of North America. The authors begin by outlining the theoretical basis of gap management, which assumes that creating canop...
    This paper explores the complexities and challenges associated with using gap-based silviculture in the mesic northern forests of North America. The authors begin by outlining the theoretical basis of gap management, which assumes that creating canopy openings enhances tree species diversity. However, the paper emphasizes that relying solely on varying gap size often falls short of achieving diversity goals due to a multitude of interacting factors beyond light availability. These crucial factors include site history, seed dispersal, competition from other vegetation, and the impact of herbivores. The authors propose a revised, more integrated concept of gap-based silviculture that incorporates a broader range of ecological considerations and active management of understory conditions to promote structural complexity and enhance tree species diversity in these valuable forest ecosystems.
  • Guidance Document

    Silviculture Practices for Enhancing Old Forest Stand Structure in Red- and Blue-Listed Plant Communities in the CDFmm Interim Document

    This document addresses the challenge of balancing timber harvesting with the conservation of at-risk plant communities that depend on mature and old forest conditions in British Columbia's Coastal Douglas Fir biogeoclimatic zone. Recognizing the sca...
    This document addresses the challenge of balancing timber harvesting with the conservation of at-risk plant communities that depend on mature and old forest conditions in British Columbia's Coastal Douglas Fir biogeoclimatic zone. Recognizing the scarcity of these older forests, the document outlines silvicultural practices aimed at maintaining existing structural diversity in high-conservation areas and accelerating the development of old-growth characteristics in younger, more homogenous stands. Ultimately, it seeks to equip forest professionals with strategies to enhance the ecological functions of older forests within provincial forest lands.
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