2 edition of Strength properties of white spruce from the interior of British Columbia found in the catalog.
Strength properties of white spruce from the interior of British Columbia
W. J. Smith
by Canadian Forestry Service, Dept. of Fisheries and Forestry in [Ottawa?]
Written in English
Includes bibliographical references.
|Statement||by W. J. Smith.|
|LC Classifications||TS800 .F585 VP-X-56|
|The Physical Object|
|Number of Pages||10|
|LC Control Number||75595139|
From analyses of the petroleum-ether-soluble resin of fresh whole-wood samples, it is concluded that yields of tall oil comparable to those from Southern Pines may be obtained from Lodgepole Pine, and smaller amounts from Ponderosa Pine and White Spruce. The composition of this fraction is given for each timber. Substantial loss of petroleum-ether-soluble resin occurred during storage for Introduction. The timber is generally marketed as Canadian spruce, and while the bulk of shipments contain mostly timber of Picea glauca, they may contain some red spruce, P. rubens Sarg. and black spruce, P mariana BSP, and since balsam fir grows with black spruce, this species may also be included. Canadian spruce may be graded and shipped for structural purposes in the species mix 'Spruce.
Common names: Red fir, Douglas spruce, yellow fir. Grown: Pacific Coast to the Rocky Mountains, and from Mexico to central British Columbia. Harvested: Oregon, Washington, California, Rocky Mountain states. Characteristics: Sapwood narrow in old-growth trees; may be as much as 3 inches wide in second-growth trees. Varies widely in weight and. Engelmann spruce (P. engelmannii) x white spruce hybrids are common where the ranges of these species overlap. Natural crosses between these species occur from central British Columbia as far south as eastern Washington and Yellowstone National Park. Within this area trees at low elevations closely resemble pure white spruce, while pure.
The primary target of herbicide spraying in the Central Interior of British Columbia is the aspen tree (populus tremuloides). In many other areas of North America, the aspen tree is finding a growing number of uses in lumber, engineered wood products, pulp and . White Spruce, Picea glauca (Moench) Voss This species is also called northern spruce, Canadian spruce, and cat spruce (Nova Scotia). Generally it is about 50 feet in height and 1 1/2 to 2 feet in diameter, but occasionally reaches a diameter of 4 feet and a height of feet.
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In British Columbia, black spruce usually grows in pure stands, especially on wet and very wet, very poor and poor sites. This is more particularly the case in Quebec, where rich soils are rare. Black spruce is a pioneer species (primary succession) in ombotrophic wetlands and present in early, mid- and late stages of secondary succession; a.
Domtar’s northern softwood grades include Boreal softwoods from central Canada, such as black spruce, jack pine and white spruce. From the interior of British Columbia, we use lodgepole pine, white spruce and Douglas fir.
All of our northern softwoods exhibit excellent strength (tensile and tear), high brightness and outstanding cleanliness. White pine weevil (Pissodesstrobi (Peck)) damage in three interior spruce open-pollinated progeny tests in north central British Columbia was evaluated to examine the patterns of attack among.
In this study we investigated quantitative genetic variation in tracheid characteristics in two genetic tests of British Columbia's interior spruce (the common name for white spruce, Picea glauca (Moench) Voss; Engelmann spruce, Picea engelmanni Parry ex Engelm.; and their hybrids).
The study included 88 half-sib families from the East Kootenay and Prince George by: 1. Introduction and background. Over the next century, mean annual air temperatures in British Columbia (BC) are expected to increase from 1 to 4 °C, and be accompanied by precipitation events of increased intensity and severity ().These climate changes are certain to have an impact on BC’s forests (Kozlowski,Larsen,Wang et al., ) and are expected to initiate long-term Cited by: 3.
wood strength in interior spruce. In British Columbia, Canada, white spruce and its hybrid (P. glauca properties can vary widely. Wood strength, as measured by the flexural proper.
Research Highlights: This research presents a novel approach for comparing structural carbon allocation to tree growth and to climate in a dendrochronological analysis. Increasing temperatures reduced the carbon proportion of wood in some cases.
Background and Objectives: Our goal was to estimate the structural carbon content of wood within hybrid white spruce (Picea glauca (Moench) ×. Red Spruce; Growing Range: British Columbia and Western Alberta Southward through New Mexico and West Texas into Mexico.
The best growth is in Washington, Oregon, British Columbia and the region between the coast and the Cascade Mountains. The Timber: Trees grow up to 36″ to ″ caliper and mature trees can reach feet tall. Kamloops Mill — This mill, located in Kamloops, British Columbia, produces wood pulp from trees grown in the south central interior of British Columbia.
Species include white spruce and lodgepole pine. The fiber strength and low coarseness of this wood pulp deliver excellent strength, surface uniformity and smoothness to products such as.
Our location in the interior of British Columbia, Canada provides a selection of home building logs unsurpassed worldwide. Only premium quality logs are hand selected from trees growing at high elevations.
These trees experience slower growth rates, resulting in a higher structural value due to tighter annual growth rings. In British Columbia, spruce species, including Sitka spruce, account for 22% of the total forest inventory. Of this, white spruce makes up the largest portion.
White spruce and Engelmann spruce (interior spruce) are graded in the single-species group (spruce-pine-fir or SPF) along with lodgepole pine and subalpine fir.
Kiln-dried SPF lumber is used as a structural framing material in all types. Color/Appearance: White Spruce is typically a creamy white, with a hint of yellow. Grain/Texture: White Spruce has a fine, even texture, and a consistently straight grain. Rot Resistance: Heartwood is rated as being slightly resistant to non-resistant to decay.
Workability: Easy to work, as long as there are no knots present. Glues and finishes well, though it can give poor (blotchy and. White and Engelmann spruces and Sitka and Engelmann spruces are sympatric over large areas in British Columbia and hybridize, while hybridization is rare between white and black spruces.
However, a hybrid of this type was found in Minnesota and was discussed by Little and Pauley () under the English name Rosendahl spruce.
White Spruce is highly valued for lumber and plywood. As dimension lumber, it is extremely versatile because of its high strength-to-weight ratio. It is used for construction (framing, sheathing, roofing, sub-flooring), general millwork, interior finishing, boxes and packing cases.
Its dimensional stability and superior gluing properties make. Other common species of spruce include: Sitka Spruce, White Spruce and Black Spruce. Pine. Properties and Uses. Pine is commonly used as structural lumber and in general construction of wood framed houses.
Lodgepole Pine and Western White Pine range in. Subalpine fir (Abies lasiocarpa), also known as balsam or balsam fir, grows throughout most of the British Columbia Interior, and is marketed in the SPF species group (spruce-pine-fir) with lodgepole pine and interior spruce.
Analyses of tree-ring wood properties combined with an understanding of tree physiology provided detailed intra-annual insights into historical and seasonal climate phenomena in sub-boreal forests of northern British Columbia. This study investigated historical climate trends in northern British Columbia, Canada, through the use of tree-ring proxies, and established a means of reconstructing.
Picea glauca, the white spruce, is a species of spruce native to the northern temperate and boreal forests in North America.
Picea glauca was originally native from central Alaska all through the east, across southern/central Canada to the Avalon Peninsula in Newfoundland.
It now has become naturalized southward into the far northern United States border states like Montana, Minnesota. Abstract A dynamic interrelationship exists among wood density and fiber traits (tracheid length and microfibril angel, MFA) and the ultimate wood strength properties.
Moreover, many of the basic fundamental wood attributes are heavily influenced by crown size and architecture. In an attempt to examine this interplay, we thoroughly characterized 60 interior spruce (Picea glauca × P.
We investigated the genetic control of wood properties as a function of cambial age to enable improvement of juvenile wood attributes in white spruce (Picea glauca (Moench) Voss).Increment cores were taken from trees randomly selected from 25 open-pollinated families in a provenance–progeny trial repeated on three sites.
On a silt-loam soil in the boreal white and black spruce (BWBS) zone in northern interior B.C., 50 root systems of year-old planted white spruce (Picea glauca (Moench) Voss) seedlings were excavated; 25 from mounds (14 cm of mineral soil over inverted organic matter) and 25 from untreated er, depth, and substrate of main structural roots were assessed at 10 cm intervals from.The Prince George Mill produces UBE / UBK pulp from a mixture of softwood species (white spruce and lodgepole pine) indigenous to the north central interior of British Columbia.
The highly versatile fibre properties supplied by the regional sawmills make these pulps highly suitable for use in the manufacturing of a wide variety of specialty.Forests (ISSN ) is a peer-reviewed open access journal of forestry and forest ecology published monthly online by MDPI.
Open Access —free for readers, with article processing charges (APC) paid by authors or their institutions.; High Visibility: indexed by the Science Citation Index Expanded (Web of Science), Ei Compendex, GeoBase, Scopus and other databases.