171 resources found

Tags: Variable retention

Filter Results
  • Case Study

    The Lucille Mountain Study 8-year Results of a Silvicultural Systems Trial in the Engelmann Spruce-Subalpine Fir zone

    This paper presents the 8-year results of a silvicultural systems trial at Lucille Mountain in British Columbia's Engelmann Spruce-Subalpine Fir zone. The study investigates the effects of different logging methods like clearcutting, patch cutting, ...
    This paper presents the 8-year results of a silvicultural systems trial at Lucille Mountain in British Columbia's Engelmann Spruce-Subalpine Fir zone. The study investigates the effects of different logging methods like clearcutting, patch cutting, and various partial cuts on climate, regeneration, tree growth, wind damage, arboreal lichens, and litter decomposition. The research highlights the complex environmental responses to forest harvesting in this high-elevation ecosystem and provides initial insights for better managing these sensitive forests, including considerations for reforestation practices and the challenges of adaptive management.
  • Case Study Peer-Reviewed Literature

    Assessing Feasibility of Wildfire Fuel Reduction Targets in North Central British Columbia

    This paper investigates the practicality of current wildfire fuel reduction goals in north-central British Columbia by examining mechanical raking treatments within the Burns Lake Community Forest. The study assessed if these treatments achieved the ...
    This paper investigates the practicality of current wildfire fuel reduction goals in north-central British Columbia by examining mechanical raking treatments within the Burns Lake Community Forest. The study assessed if these treatments achieved the targeted fuel load of 1-5 tonnes per hectare in areas deemed high risk for wildfire. Their findings suggest that meeting these targets using current methods is challenging and potentially unsustainable, highlighting the need for a standardized fuel measurement methodology and more adaptable fuel load targets that consider ecological and operational factors. The research advocates for a more feasible and scientifically sound approach to wildfire risk reduction in the region, emphasizing the importance of consistent data collection for future comparisons and improved practices.
  • 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.
  • Case Study

    Impact of Partial Cutting on Lichen Diversity in Lodgepole Pine Forests on the Chilcotin Plateau of British Columbia

    This study investigates the impact of partial cutting logging practices on lichen diversity within lodgepole pine forests of British Columbia's Chilcotin Plateau, an important habitat for northern caribou that rely on lichens for winter forage. The s...
    This study investigates the impact of partial cutting logging practices on lichen diversity within lodgepole pine forests of British Columbia's Chilcotin Plateau, an important habitat for northern caribou that rely on lichens for winter forage. The study compares different partial cutting methods, including variations in removal intensity and harvesting techniques, against unlogged control sites. Through pre- and post-logging measurements of lichen richness, diversity, and abundance, the authors aim to determine how these forestry practices affect the lichen communities and, consequently, the caribou's food source, with a focus on the influence of solar radiation and logging slash. This study aims to inform silvicultural systems that can balance timber harvesting with the maintenance of crucial caribou habitat.
  • 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

    Implementing New Forest Management Principles in Coastal British Columbia Case Study 4

    This case study the practical and economic implications of implementing ecosystem-based management principles in a coastal British Columbia old-growth forest. The study specifically examines a harvesting operation that incorporated retaining tree pat...
    This case study the practical and economic implications of implementing ecosystem-based management principles in a coastal British Columbia old-growth forest. The study specifically examines a harvesting operation that incorporated retaining tree patches and individual trees to promote biodiversity and ecological function, while assessing the productivity and costs associated with the applied harvesting systems and equipment. The report aims to provide insights into the operational challenges and potential efficiencies of adopting this new paradigm of forest management compared to traditional clearcutting practices.
  • Case Study

    Implementing New Forest Management Principles in Coastal British Columbia Case Study 3

    This case study investigates the economic and operational feasibility of implementing variable retention harvesting in coastal British Columbia. It details a specific trial on northern Vancouver Island, comparing a clearcut and a dispersed retentio...
    This case study investigates the economic and operational feasibility of implementing variable retention harvesting in coastal British Columbia. It details a specific trial on northern Vancouver Island, comparing a clearcut and a dispersed retention compartment within the same cutblock, analyzing the productivity and costs associated with different harvesting systems and equipment. The study aims to provide information on the practical challenges of adopting new forest management principles focused on sustaining ecological values alongside economic viability, ultimately contributing to the refinement of these techniques through adaptive management.
  • Case Study

    Implementing New Forest Management Principles in Coastal British Columbia Case Study 2

    This case study investigates the economic and operational feasibility of implementing variable retention harvesting in coastal British Columbia. It details a specific trial on northern Vancouver Island, comparing a clearcut and a dispersed retention...
    This case study investigates the economic and operational feasibility of implementing variable retention harvesting in coastal British Columbia. It details a specific trial on northern Vancouver Island, comparing a clearcut and a dispersed retention compartment within the same cutblock, analyzing the productivity and costs associated with different harvesting systems and equipment. The study aims to provide information on the practical challenges of adopting new forest management principles focused on sustaining ecological values alongside economic viability, ultimately contributing to the refinement of these techniques through adaptive management.
  • Case Study

    Implementing New Forest Management Principles in Coastal British Columbia Case Study 1

    This case study investigates the practical application and economic implications of ecosystem-based management in coastal British Columbia. It details a specific harvesting operation undertaken with Canadian Forest Products Ltd. , examining the produ...
    This case study investigates the practical application and economic implications of ecosystem-based management in coastal British Columbia. It details a specific harvesting operation undertaken with Canadian Forest Products Ltd. , examining the productivity and costs associated with different harvesting methods when implementing principles that emulate natural forest disturbances and conserve biodiversity. The study aims to provide empirical knowledge to foresters by analyzing a real-world example of this relatively new forest management paradigm, considering factors like retention levels of trees, operational feasibility, and potential impacts on the residual stand and soil.
  • Case Study

    FRDA Partial Cutting and Helicopter Yarding on Environmentally Sensitive Floodplains in Old Growth Hemlock-Spruce Forests

    This FRDA Report #166 details a study conducted in British Columbia in 1991 where the central focus is on methods of timber harvesting, specifically partial cutting and helicopter yarding, in ecologically sensitive floodplain areas within old-growth ...
    This FRDA Report #166 details a study conducted in British Columbia in 1991 where the central focus is on methods of timber harvesting, specifically partial cutting and helicopter yarding, in ecologically sensitive floodplain areas within old-growth hemlock-spruce forests. The case study explores the environmental impacts and effectiveness of these yarding techniques in such delicate ecosystems.
  • Case Study

    Alternatives to Clearcutting in BC Coastal Montane Forests

    This paper details the establishment and early findings of the Montane Alternative Silvicultural Systems partnership, formed to investigate alternatives to clearcutting in the high-elevation old-growth forests of Vancouver Island. The study compares...
    This paper details the establishment and early findings of the Montane Alternative Silvicultural Systems partnership, formed to investigate alternatives to clearcutting in the high-elevation old-growth forests of Vancouver Island. The study compares the operational costs and biological impacts of Uniform Shelterwood, Green Tree Retention, and Patch Cuttings to traditional clearcutting and an old-growth control. Initial results highlight differences in harvesting expenses, windthrow, site disturbance, nutrient cycling, understory vegetation response, and coniferous regeneration, emphasizing the complexity of balancing timber harvesting with ecological sustainability in these montane ecosystems.
  • Technical Report

    Practicing Landscape Fire Management

    This technical report introduces Landscape Fire Management as a crucial, integrated approach to addressing escalating wildfire risks while restoring ecosystem health. LFM is presented as a paradigm shift, moving beyond localized efforts to encompass...
    This technical report introduces Landscape Fire Management as a crucial, integrated approach to addressing escalating wildfire risks while restoring ecosystem health. LFM is presented as a paradigm shift, moving beyond localized efforts to encompass broader landscapes by coordinating various land management activities and setting complementary wildland fire objectives across different land-use zones. The document outlines six core principles for effective LFM practice: defining the landscape, understanding current and future conditions, assessing risks to values, setting cohesive objectives, coordinating interventions, and continuously learning through adaptive management. This report aims to guide diverse land managers in British Columbia towards a more resilient coexistence with fire by detailing strategies like fuel breaks, fire-tolerant stands, and managing fuel loads.
  • Technical Report

    Strip Thinning High Density Pine Regeneration

    This technical report explores cost-effective thinning methods for densely regenerated lodgepole pine stands in British Columbia resulting from wildfires. The study evaluates semi-mechanized treatments, which combine machine-based strip mulching with...
    This technical report explores cost-effective thinning methods for densely regenerated lodgepole pine stands in British Columbia resulting from wildfires. The study evaluates semi-mechanized treatments, which combine machine-based strip mulching with manual thinning, against traditional manual-only thinning. The findings suggest that both fully and semi-mechanized methods were less expensive than solely manual approaches and preserved enough trees to meet basic provincial stocking standards, though meeting long-term density targets might require further investigation.
  • Integrating Ecosystem Restoration into Forest Management Practical Examples for Foresters

    This core purpose of this document is to present ideas and case studies demonstrating how to integrate ecological restoration into routine forest management practices to enhance biodiversity, reduce risks, and achieve sustainable certification. This ...
    This core purpose of this document is to present ideas and case studies demonstrating how to integrate ecological restoration into routine forest management practices to enhance biodiversity, reduce risks, and achieve sustainable certification. This document outlines key ecological issues, such as landscape fragmentation and the loss of natural stand structural elements, and details corresponding restoration approaches across eleven distinct case studies, from restoring open forest and open range through commercial thinning to mitigating road impacts and restoring riparian habitat integrity. Finally, the document prioritizes specific forested ecosystems with high priority restoration needs in BC, offering tailored solutions for zones like the Interior Douglas-fir and Coastal Western Hemlock.
  • Technical Report

    Using Silviculture to Maintain and Enhance Grizzly Bear Habitat in Six Variants of the Prince George Forest Region

    This document presents a methodology for refining silviculture guidelines in British Columbia's Prince George region to enhance habitat for grizzly bears. The analysis highlights key ecological differences, noting that mountain bears flourish in open...
    This document presents a methodology for refining silviculture guidelines in British Columbia's Prince George region to enhance habitat for grizzly bears. The analysis highlights key ecological differences, noting that mountain bears flourish in open, naturally gappy environments, while plateau bears struggle in dense stands that lack forage opportunities. To address this, the authors recommend using partial cutting systems and reduced tree density to create and maintain canopy gaps that maximize light penetration, stimulating the growth of critical shrubs, roots, and berries, and also suggests protecting features like high stumps and coarse woody debris. Furthermore, this document stresses the importance of minimizing human interaction by deactivating roads and retaining vegetation for security cover, especially near high-value riparian areas. This document provides an adaptive management framework to integrate wildlife needs directly into sustainable forest planning.
  • Technical Report

    FRDA Identification and Management of Summer Frost-Prone Sites in the Cariboo Forest Region

    This FRDA Report #157 focuses on providing a detailed framework for identification and management of summer frost-prone sites within the Cariboo Forest Region of British Columbia. Recognizing that unexpected summer frosts severely impact the survival...
    This FRDA Report #157 focuses on providing a detailed framework for identification and management of summer frost-prone sites within the Cariboo Forest Region of British Columbia. Recognizing that unexpected summer frosts severely impact the survival and growth of young tree plantations, the document establishes clear frost hazard assessments based on biogeoclimatic zones, landscape topography, and other site-specific factors. The main body of the text, supplemented by a concise field guide, outlines a methodology for determining the degree of risk associated with cold air accumulation. The authors supply comprehensive management recommendations regarding site preparation, species selection, and harvest practices designed to minimize damage to seedlings and improve reforestation success.
  • Peer-Reviewed Literature

    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.
  • Peer-Reviewed Literature

    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.
  • Technical Report

    Ecology and Management of Interior Douglas-fir at the Northern Extreme of its Range

    This study addresses the ecology and management of interior Douglas-fir at the northern extent of its range in British Columbia, particularly within the Prince George Timber Supply Area. The study delves into concerns about a perceived decline in Dou...
    This study addresses the ecology and management of interior Douglas-fir at the northern extent of its range in British Columbia, particularly within the Prince George Timber Supply Area. The study delves into concerns about a perceived decline in Douglas-fir abundance, exploring its ecological, cultural, and economic significance in this northern environment. It synthesizes existing knowledge on Douglas-fir, examining past and present management practices, its role in local ecosystems including wildlife habitat and soil health, and challenges related to its regeneration, often comparing it with other species like lodgepole pine and spruce. The document serves as a problem analysis and aims to inform the development of an interim management strategy and future research directions for sustaining Douglas-fir in these unique northern landscapes.
  • Technical Report

    Caribou Fire and Forestry - A Literature Review

    This document synthesizes existing research on the intertwined relationships between woodland caribou, wildfire, and forestry practices in Canada. It systematically explores how these two types of landscape disturbances impact various aspects of cari...
    This document synthesizes existing research on the intertwined relationships between woodland caribou, wildfire, and forestry practices in Canada. It systematically explores how these two types of landscape disturbances impact various aspects of caribou ecology, including habitat selection, movement patterns, population demography, and the availability of their primary forage. The review compares the effects of wildfire and forestry, aiming to inform sustainable forest management strategies and caribou recovery efforts by understanding how human activities can better emulate natural disturbance regimes.
You can also access this registry using the API (see API Docs).