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Combining Thinning and Diverse Plantings to Adapt to Climate Change Induced Timber Supply Shortage in British Columbia
This paper explores strategies to mitigate timber supply shortages in British Columbia (BC), a problem exacerbated by climate change and past natural disturbances like the mountain pine beetle outbreak. The authors investigate two primary forest mana...This paper explores strategies to mitigate timber supply shortages in British Columbia (BC), a problem exacerbated by climate change and past natural disturbances like the mountain pine beetle outbreak. The authors investigate two primary forest management approaches: commercial thinning and diverse plantings, including assisted species migration. By simulating the long-term effects of these interventions in a case study area, the study concludes that combining commercial thinning with species diversification offers the most promising solution to sustain future timber supply in BC, emphasizing the importance of adaptive forest management in the face of environmental challenges. -
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. -
The Date Creek Study Productivity of Ground-Based Harvesting Methods in the Interior Cedar Hemlock Zone of British Columbia
This document details a study conducted in British Columbia's Interior Cedar-Hemlock forest where the primary focus is evaluating the productivity and costs of ground-based harvesting methods under different silvicultural prescriptions: clearcut, hea...This document details a study conducted in British Columbia's Interior Cedar-Hemlock forest where the primary focus is evaluating the productivity and costs of ground-based harvesting methods under different silvicultural prescriptions: clearcut, heavy removal, and light removal. The study monitored various harvesting systems, including mechanized, conventional, and horse skidding, to understand their economic implications and impact on the site. The research aimed to inform the development of sustainable forestry practices that balance timber production with ecological considerations in the region. -
Patch Cutting in Old Growth to Address Concern About Wildlife Habitat and Clearcut Adjacency
This document details a case study on patch cutting in old-growth forests within British Columbia, specifically addressing its impact on wildlife habitat and its use as an alternative to clearcut logging. The study examines a group selection silvicul...This document details a case study on patch cutting in old-growth forests within British Columbia, specifically addressing its impact on wildlife habitat and its use as an alternative to clearcut logging. The study examines a group selection silviculture system aimed at balancing timber extraction with the preservation of wildlife corridors and habitat, particularly for species like caribou and mule deer. Key objectives included creating uneven-aged stands, reducing snow interception, minimizing logging impacts, and maintaining a percentage of the block area as old-growth. The findings suggest that while patch cutting is operationally feasible and offers benefits over conventional clearcutting, it still requires careful planning and management to effectively meet both economic and environmental goals. -
Harvesting Small Patch Clearcuts in Southeastern British Columbia
This document investigates harvesting small patch clearcuts in southeastern British Columbia. Faced with the challenge of balancing timber extraction with high recreational values and visually sensitive landscapes, this study aims to evaluate differe...This document investigates harvesting small patch clearcuts in southeastern British Columbia. Faced with the challenge of balancing timber extraction with high recreational values and visually sensitive landscapes, this study aims to evaluate different harvesting systems. The study was conducted at Robson Ridge and Pilot Point and compared the productivity, costs, and site disturbance of ground-skidding and cable-yarding methods, highlighting key factors like terrain, machine type, and operational planning that influence the success of these silvicultural approaches in visually sensitive areas. The findings emphasize that meticulous planning, especially concerning road layouts and patch boundaries, is crucial for achieving both economic and environmental objectives in small patch clearcutting. -
Moving Towards Adaptation Strategies in Forest Management - A Starting Place for the West Kootenays
This document serves as a foundational guide for adapting forest management practices in the West Kootenay region of British Columbia in the face of climate change. Recognizing the confirmed reality of climate change and its projected impacts on the ...This document serves as a foundational guide for adapting forest management practices in the West Kootenay region of British Columbia in the face of climate change. Recognizing the confirmed reality of climate change and its projected impacts on the region, the report outlines a starting point for forest practitioners to consider and implement adaptation strategies. It structures these strategies across different scales - landscape, ecosystemstand, and operational - offering specific actions relevant to the unique vulnerabilities identified in the northern, mid, and southern subregions of the West Kootenays. Ultimately, the report emphasizes the need for a deliberate and informed decision-making process to select and implement effective adaptation measures, advocating for ongoing monitoring and collaboration among stakeholders. -
Seeking Alternatives to Clearcutting in British Columbia - The Role of Large-Scale Experiments for Sustainable Forestry
This document reports on a government initiative, the Silvicultural Systems Program, established in response to public criticism of widespread clearcutting in British Columbia's forests starting in 1990. The paper describes the program's goal of expl...This document reports on a government initiative, the Silvicultural Systems Program, established in response to public criticism of widespread clearcutting in British Columbia's forests starting in 1990. The paper describes the program's goal of exploring and demonstrating diverse forest harvesting practices through numerous large-scale, long-term experiments across the province. It outlines the program's history, funding, and key accomplishments, including the operational feasibility and varied environmental impacts of alternatives to clearcutting, and concludes by offering lessons learned for future large-scale forestry research endeavors and reflecting on the challenges of translating research into widespread changes in forestry practices. -
Silviculture Options in the Central Coast
This document explores alternatives to clearcutting in British Columbia. It details the environmental context of the Central Coast, including its physical environment, diverse biota, and natural and human-caused disturbances, emphasizing the unique c...This document explores alternatives to clearcutting in British Columbia. It details the environmental context of the Central Coast, including its physical environment, diverse biota, and natural and human-caused disturbances, emphasizing the unique characteristics of its three ecological subunits: the Hecate Lowland, the Outer Coast Mountains, and the Inner Coast Mountains. The document explores silvicultural systems, contrasting traditional methods with more ecologically sensitive approaches like variable retention, and analyzes the operational and economic implications of implementing partial cutting in this distinctive operating environment, ultimately providing strategic recommendations for sustainable forest management tailored to British Columbia's Central Coast's ecological and socioeconomic realities. -
Review of Glyphosate Use in British Columbia Forestry
This document examines the current use of glyphosate in BC's forestry practices, specifically for vegetation management in re-establishing forests after harvesting. It systematically explores the regulatory context governing herbicide use and the rat...This document examines the current use of glyphosate in BC's forestry practices, specifically for vegetation management in re-establishing forests after harvesting. It systematically explores the regulatory context governing herbicide use and the rationale behind glyphosate's application, contrasting it with other methods like manual cutting. The review then delves into the impacts of glyphosate on various ecological values, including biodiversity, soil and water quality, climate change considerations, wildfire dynamics, First Nations interests, and public use perceptions. Finally, it assesses the implications for timber supply and discusses managing forests for multiple values, culminating in recommendations for future research, data collection, communication, and policy development. -
Fort St. John pilot project Mixedwood Management Guidelines
This document outlines guidelines for managing mixedwood forests within the Fort St. John Pilot Project in British Columbia, aiming to meet the objectives of their Sustainable Forest Management Plan. A central theme is the classification and tracking...This document outlines guidelines for managing mixedwood forests within the Fort St. John Pilot Project in British Columbia, aiming to meet the objectives of their Sustainable Forest Management Plan. A central theme is the classification and tracking of different forest types across the landscape using a ledger system to ensure long-term balance. The guidelines also describe various proposed reforestation methods, ranging from creating mosaics of single-species stands to fostering intimate mixtures of conifer and deciduous trees, with the overall purpose of achieving desired future forest conditions at a landscape level while incorporating new scientific understanding. -
British Columbia's Interior Fisher Wildlife Habitat Decision Aid
This document synthesizes scientific and experiential knowledge regarding the habitat needs of fishers, a forest-dependent carnivore considered a Species at Risk. The guide offers practical considerations for managing forests within fisher territorie...This document synthesizes scientific and experiential knowledge regarding the habitat needs of fishers, a forest-dependent carnivore considered a Species at Risk. The guide offers practical considerations for managing forests within fisher territories, covering aspects like denning, resting, and foraging habitats, aiming to help maintain essential resources during forestry operations such as harvesting and silviculture. This document seeks to integrate fisher conservation with forest management practices in British Columbia's interior. -
Commercial Thinning in White Spruce Stands
This report details a commercial thinning study conducted in white spruce stands near Calling Lake, Alberta, in 2002, with the aim to understand its impact on forest growth, yield, and overall development. The study investigated three different remov...This report details a commercial thinning study conducted in white spruce stands near Calling Lake, Alberta, in 2002, with the aim to understand its impact on forest growth, yield, and overall development. The study investigated three different removal levels (30%, 50%, and 70% of basal area), along with an uncut control. Key aspects examined were the productivity and cost-effectiveness of harvesting and forwarding operations using a Timberjack harvester and forwarder, the extent of damage to residual trees, and the influence of non-merchantable brush on harvester efficiency. The findings indicate that higher removal levels generally led to increased productivity for both machines, and that pre-harvest brushing significantly improved harvester efficiency by enhancing visibility and reducing wasted cuts. -
Operationalizing Adaptive Silviculture for Climate Change
This webinar discusses operationalizing adaptive silviculture for climate change through a multi-site research network. The core purpose of the project is to provide forest managers with real-world, operational examples of integrating climate change ...This webinar discusses operationalizing adaptive silviculture for climate change through a multi-site research network. The core purpose of the project is to provide forest managers with real-world, operational examples of integrating climate change adaptation principles into practice, specifically by fostering ecosystem resilience to uncertain futures. The research employs a consistent framework across various forest types, testing three primary adaptation strategies including resistance, resilience, and transition. The webinar details the work at the Minnesota pine site, highlighting local climate vulnerability to drought and the application of these three treatments: simple thinning for resistance, mixed-species restoration for resilience, and aggressive transition management using both native and novel, future-adapted species like Ponderosa pine. -
Silviculture Treatments for Ecosystem Management in the Sayward (STEMS) Establishment Report for STEMS 1 Snowden Demonstration Forest
This document details the establishment of a significant forestry experiment called Silviculture Treatments for Ecosystem Management in the Sayward. The core purpose of STEMS is to compare different forest harvesting and management techniques beyond ...This document details the establishment of a significant forestry experiment called Silviculture Treatments for Ecosystem Management in the Sayward. The core purpose of STEMS is to compare different forest harvesting and management techniques beyond traditional clearcutting in second-growth Douglas-fir stands. This comparison evaluates their impacts on forest productivity, economics, and public perception, aiming to provide scientific data for making informed decisions about sustainable, multiple-use forest management. The project replicates a similar study in Washington State to enhance the reliability and broader applicability of its findings, addressing the increasing demand for forestry practices that balance timber production with ecological and social values. -
FRDA The Effects of Stand Density and Fertilization on Stand Development in Immature Coastal Douglas-fir
This FRDA Report #094 investigates how manipulating stand density and applying fertilization affected the long-term development of immature Coastal Douglas-fir stands in British Columbia. Researchers monitored test plots over a decade, examining how ...This FRDA Report #094 investigates how manipulating stand density and applying fertilization affected the long-term development of immature Coastal Douglas-fir stands in British Columbia. Researchers monitored test plots over a decade, examining how various spacing regimes influenced tree metrics. The findings indicated that the combined treatments significantly improved stand volume growth, with fertilization providing a strong, immediate response that waned over time. The reduced density plots demonstrated the most pronounced and sustained positive results throughout the ten years after treatment. -
Understory Responses to Mechanical Restoration and Drought Within Montane Forests of British Columbia
This document investigates the effects of forest restoration thinning on the plant life beneath the tree canopy in two dry forest types. The initial findings consistently showed that the abundance of understorey shrubs and herbs was positively linked...This document investigates the effects of forest restoration thinning on the plant life beneath the tree canopy in two dry forest types. The initial findings consistently showed that the abundance of understorey shrubs and herbs was positively linked to light intensity and inversely related to the density of trees, emphasizing the negative impact of conifer ingrowth. However, immediately following mechanical thinning, the study observed an unexpected short-term reduction in understorey species richness, diversity, and cover, particularly when compounded by drought conditions. These results suggest that while thinning aims to mitigate the long-term negative impacts of increased tree density, the immediate mechanical disturbance requires careful management, especially concerning factors like the timing of treatment and post-treatment grazing. -
Comparison of Harvesting Phases in a Case Study of Partial Cutting Systems in Southwestern British Columbia
This report details a collaborative study evaluating different timber harvesting methods in dry Douglas-fir ecosystems. The primary goal was to compare the productivity of clearcutting with various variable retention treatments (seed-tree, regenerati...This report details a collaborative study evaluating different timber harvesting methods in dry Douglas-fir ecosystems. The primary goal was to compare the productivity of clearcutting with various variable retention treatments (seed-tree, regeneration cut, removal cut), utilizing both cable-yarding and ground-skidding systems. The study also aimed to identify operational factors affecting varibale retention efficiency and to validate procedures for these systems, noting that factors like piece size, slope, and yarding/skidding distance often overshadowed the cutting pattern's influence on productivity. -
The Influence of Initial Espacement on the Growth of a 27-year-old Sitka Spruce Plantation
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, an...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. -
Harvesting Options in Highly Constrained IDF Stand in the Rocky Mountain Trench
This docuemnt details a case study on harvesting options in a highly constrained forest stand within the Rocky Mountain Trench, focusing on an experimental forest management pilot project. The primary goal was to evaluate different harvesting methods...This docuemnt details a case study on harvesting options in a highly constrained forest stand within the Rocky Mountain Trench, focusing on an experimental forest management pilot project. The primary goal was to evaluate different harvesting methods such as conventional, single tree, and group selection on soil disturbance and armillaria root disease. The study describes the site's characteristics, experimental design, and the specific silvicultural prescriptions implemented to achieve objectives like maintaining water levels and reducing disease susceptibility. It further outlines the harvesting operations conducted and presents preliminary results regarding the impact of each method on stand health and soil integrity. -
Levels Of Growing Stock Cooperative Study in Douglas-fir – Sayward Forest and Shawnigan Lake
This document is a part of a long-running Levels-of-Growing-Stock (LOGS) Cooperative Study in Douglas-fir stands, specifically detailing findings from installations at Sayward Forest and Shawnigan Lake in British Columbia. The core objective of the L...This document is a part of a long-running Levels-of-Growing-Stock (LOGS) Cooperative Study in Douglas-fir stands, specifically detailing findings from installations at Sayward Forest and Shawnigan Lake in British Columbia. The core objective of the LOGS study is to understand how different thinning intensities impact cumulative wood production, individual tree size, and growth ratios in young Douglas-fir stands. This progress report summarizes data from these two Canadian sites, showing that volume growth is strongly tied to the amount of growing stock retained, and that thinning significantly influences tree size distribution and live crown development, suggesting potential for future productivity gains. The study also offers comparisons between various thinning regimes and unthhinned control plots, revealing the long-term implications of silvicultural practices on forest stands.
