Guidelines for Developing Stand Density Management Regimes PDF Download
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Author: British Columbia. Forest Practices Branch
Publisher: British Columbia, Forest Practices Branch
ISBN:
Category : Forest dynamics
Languages : en
Pages : 110
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Book Description
Stand density management is the process of controlling tree density within a stand to achieve desired objectives. Stand density management practices include the spacing of planted trees, pre-commercial thinning, and commercial thinning. A sound density management prescription must consider three elements of prediction: biological responses of the stand to treatment, economic implications of the treatment, and forest-level effects of the treatment. This document provides essential information on each of these elements, and provides a structured decision process for making site-specific density management prescriptions. Sections of the document cover the biological concepts of timber production, economic principles of timber production, forest planning considerations, the decision process, and density management planning tools. Includes glossary.
Author: British Columbia. Forest Practices Branch
Publisher: British Columbia, Forest Practices Branch
ISBN:
Category : Forest dynamics
Languages : en
Pages : 110
Get Book
Book Description
Stand density management is the process of controlling tree density within a stand to achieve desired objectives. Stand density management practices include the spacing of planted trees, pre-commercial thinning, and commercial thinning. A sound density management prescription must consider three elements of prediction: biological responses of the stand to treatment, economic implications of the treatment, and forest-level effects of the treatment. This document provides essential information on each of these elements, and provides a structured decision process for making site-specific density management prescriptions. Sections of the document cover the biological concepts of timber production, economic principles of timber production, forest planning considerations, the decision process, and density management planning tools. Includes glossary.
Author: David C. Powell
Publisher:
ISBN:
Category : Forest thinning
Languages : en
Pages : 24
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Book Description
Author:
Publisher:
ISBN:
Category : Forest thinning
Languages : en
Pages : 258
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Book Description
Since adoption of the Northwest Forest Plan (NWFP) in the early 1990s, there has been a fundamental shift in forest management practices on federal lands in western Oregon and Washington. Commoditydriven clearcut regeneration harvests have given way to thinnings intended to enhance development of late-successional forest habitats and to conserve important aquatic and riparian ecosystems. Density Management in the 21st Century: West Side Story presents abstracts and peer reviewed papers from a regional conference highlighting more than twenty years of research related to forest thinning in the NWFP area. Presentations from the BLM Density Management and Riparian Buffer Study provide a focal point, with presentations from additional studies providing for a more complete overview of the west-side thinning science. The contributions are organized as five topical themes: The Regional and Landscape Context for Density Management in the Northwest Forest Plan Era; Implementation and Influences of Density Management in the Terrestrial Ecosystem; Riparian and Aquatic Ecosystems and their Responses to Thinning and Buffers; Socioeconomics and Operations; and Thinning and Adaptation. Collectively, the contributions summarize many important forest dynamics and ecosystem responses to partial overstory removals. Interactions between aquatic and riparian ecosystem conservation measures and upland harvest are emphasized. Targeting resource management practitioners, decision-makers and researchers, the collected works provide a reference to the current and future roles and issues of density management as a tool for forest ecosystem management.
Author: United States. Forest Service. Division of Timber Management
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 68
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Book Description
Author: Colin D. MacLean
Publisher:
ISBN:
Category : Forest surveys
Languages : en
Pages : 12
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Book Description
Relative density is a measure of tree crowding compared to a reference level such as normal density. This stand attribute, when compared to management standards, indicates adequacy of stocking. The Pacific Coast Forest Survey Unit assesses the relative density of each stand sampled by summing the individual density contributions of each tree tallied, thus quantifying the effects of mixed species, mixed age, and irregular spacing on total stand density. Each tree's contribution reflects its stage of development, species, and social position. Plot clusters are designed to permit assessment of the effect of irregular spacing.
Author: Craig Farnden
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 37
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Book Description
Density manipulation is one of the most powerful tools available to silviculturists to achieve a broad range of silvicultural objectives. One of the most effective methods of planning density management in even-aged stands is through the use of stand density management diagrams. These diagrams graphically depict the temporal relationships between stand density, top height, quadratic mean diameter and mean tree volume. They allow the user to develop and project crop plans through time, to determine the optimum timing of thinnings, to determine the operational feasibility of thinnings, and to contrast potential outcomes from a number of stand management regimes. The stand density management diagrams for lodgepole pine, white spruce and interior Douglas-fir in this report were derived from managed stand yield tables produced by TASS, an individual tree, distance-dependent growth model. The report describes their use in planning thinning regimes and making preliminary yield estimations.
Author: V. C. Baldwin
Publisher:
ISBN:
Category : Forest ecology
Languages : en
Pages : 24
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Book Description
Author: Joan DeYoung
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 159
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Book Description
"This is a forest measurements textbook written for field technicians. Silvicultural applications and illustrations are provided to demonstrate the relevance of the measurements. Special “technique tips” for each skill are intended to help increase data collection accuracy and confidence. These include how to avoid common pitfalls, effective short cuts, and essentials for recording field data correctly. The emphasis is on elementary skills; it is not intended to be a timber cruising guide"--BC Campus website.
Author: Forest Renewal BC.
Publisher: British Columbia, Forest Practices Branch
ISBN: 9780772631862
Category : Forest productivity
Languages : en
Pages : 12
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Book Description
Contains instructions on obtaining necessary data for using a stand density management diagram, which is used for projecting stand growth through time to rotation. An example of silviculture data from British Columbia illustrates the procedures presented. Types of data covered in the instructions include stand density, top height, species composition, site index, region, age structure, the likely growth trajectory, degree of clumping of trees, and mean diameter.
Author: Jerome L. Clutter
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 360
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Book Description
Growrh and yield prediction. Growing stock and stand density. Predicting growth and yield. Financial aspects of timber management. Taxas and risk in the evaluation of forest investiments. Timber management planning. Timber management some introduction comments. Stand-level management planning. Forest-level management planning current techniques. Common and scientific names of tree species referenced. Factors for converting selected english measurement units to corresponding metric measurement unts. Linear regression procedures.
