Development of a Portable Spectroscopic Sensor to Measure Wood and Fibre Properties in Standing Mountain Pine Beetle-attacked Trees and Decked Logs
Development of a Portable Spectroscopic Sensor to Measure Wood and Fibre Properties in Standing Mountain Pine Beetle-attacked Trees and Decked Logs

Author: Esther Hsieh

Publisher:

Published: 2006

Total Pages: 42

ISBN-13:

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The mountain pine beetle infestation in British Columbia has resulted in a wood mixture that heavily favours attacked lodgepole pine trees. While visual indicators can be used to estimate the age of a tree or tree stand since attack, it is not a reliable predictor of the wood and fibre quality and therefore the true log value. Research was initiated to develop models using vis-NIR spectroscopy on a portable analyzer to measure these important variables rapidly for field and laboratory applications. This report describes the development of a unique, fast-scanning and field-portable tool to quantify parameters of relevance for mountain pine beetle infested lodgepole pine. Three calibration models to simultaneously predict moisture, density, blue stain and decay were developed for three different applications: wood core measurements in the laboratory, field measurements on standing trees, and decked log measurements.

Kraft Pulp and Paper Mill Utilization Options for Grey-stage Wood
Kraft Pulp and Paper Mill Utilization Options for Grey-stage Wood

Author: Theodore Radiotis

Publisher:

Published: 2008

Total Pages: 88

ISBN-13:

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This study is part of a series of research papers that explore the biological, social, and economic aspects of British Columbia's mountain pine beetle epidemic. It examines lodgepole pine (Pinus contorta) that has been attacked and killed by mountain pine beetle (Dendroctonus ponderosae) and which goes through several stages (red and grey) following the attack. Wood moisture content decreases rapidly, typically to below fibre saturation point. As a consequence, the wood responds differently in both the chipping and pulping processes. Research on beetle-attacked wood has shown that many physical properties are not affected; wever wood-water interactions have not been studied in detail. In the two parts of this study, the sorption behaviour of beetle-killed wood in comparison to green wood is examined, and the influence of utilization of dry beetle-killed wood on kraft pulping operations and pulp quality is explored.--Includes text from Government of Canada publications site and from document.

Assessing the Shelf Life Attributes of Mountain Pine Beetle-killed Trees
Assessing the Shelf Life Attributes of Mountain Pine Beetle-killed Trees

Author: S. Magnussen

Publisher:

Published: 2009

Total Pages: 34

ISBN-13:

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In 2006, a total of 360 lodgepole pine trees were destructively sampled from 45 sites that had been killed by mountain pine beetle (Dendroctonous ponderosae Hopk.). The trees were sampled from the Sub Boreal Spruce (SBS) Biogeoclimatic zone within north central British Columbia. The trees were distributed evenly across the geographic areas as well as across a sample matrix that included three classes of time since death, three classes of diameter at breast height, and three classes of soil moisture regime. A previous report described the procedures used to the collect the data and summarized the data collected for each of the sample trees. The current study analyzes the data and presents a detailed assessment of the changes in the wood quality attributes of mountain pine beetle-killed trees that occur within 5 years since death.--Includes text from document.

Whitebark Pine Communities
Whitebark Pine Communities

Author: Diana F. Tomback

Publisher: Island Press

Published: 2001

Total Pages: 462

ISBN-13: 9781597263207

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Whitebark pine is a dominant feature of western high-mountain regions, offering an important source of food and high-quality habitat for species ranging from Clark's nutcracker to the grizzly bear. But in the northwestern United States and southwestern Canada, much of the whitebark pine is disappearing. Why is a high-mountain species found in places rarely disturbed by humans in trouble? And what can be done about it.Whitebark Pine Communities addresses those questions, explaining how a combination of altered fire regimes and fungal infestation is leading to a rapid decline of this once abundant -- and ecologically vital -- species. Leading experts in the field explain what is known about whitebark pine communities and their ecological value, examine its precarious situation, and present the state of knowledge concerning restoration alternatives. The book. presents an overview of the ecology and status of whitebark pine communities offers a basic understanding of whitebark pine taxonomy, distribution, and ecology, including environmental tolerances, community disturbance processes, regeneration processes, species interactions, and genetic population structure identifies the threats to whitebark pine communities explains the need for management intervention surveys the extent of impact and losses to dateMore importantly, the book clearly shows that the knowledge and management tools are available to restore whitebark pine communities both locally and on a significant scale regionally, and it provides specific information about what actions can and must be taken.Whitebark Pine Communities offers a detailed portrait of the ecology of whitebark pine communities and the current threats to them. It brings together leading experts to provide in-depth information on research needs, management approaches, and restoration activities, and will be essential reading for ecologists, land managers, and anyone concerned with the health of forest ecosystems in the western United States.

Real Gardens Grow Natives
Real Gardens Grow Natives

Author: Eileen M Stark

Publisher: Mountaineers Books

Published: 2014-09-24

Total Pages: 645

ISBN-13: 1594858675

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CLICK HERE to download sample native plants from Real Gardens Grow Natives For many people, the most tangible and beneficial impact they can have on the environment is right in their own yard. Aimed at beginning and veteran gardeners alike, Real Gardens Grow Natives is a stunningly photographed guide that helps readers plan, implement, and sustain a retreat at home that reflects the natural world. Gardening with native plants that naturally belong and thrive in the Pacific Northwest’s climate and soil not only nurtures biodiversity, but provides a quintessential Northwest character and beauty to yard and neighborhood! For gardeners and conservationists who lack the time to read through lengthy design books and plant lists or can’t afford a landscape designer, Real Gardens Grow Natives is accessible yet comprehensive and provides the inspiration and clear instruction needed to create and sustain beautiful, functional, and undemanding gardens. With expert knowledge from professional landscape designer Eileen M. Stark, Real Gardens Grow Natives includes: * Detailed profiles of 100 select native plants for the Pacific Northwest west of the Cascades, plus related species, helping make plant choice and placement. * Straightfoward methods to enhance or restore habitat and increase biodiversity * Landscape design guidance for various-sized yards, including sample plans * Ways to integrate natives, edibles, and nonnative ornamentals within your garden * Specific planting procedures and secrets to healthy soil * Techniques for propagating your own native plants * Advice for easy, maintenance using organic methods