effects of growth rate and cambial age on wood properties of red alder (Alnus rubra Bong.) and Oregon white oak (Quercus garryana Dougl.)

by Hua Lei

Written in English
Published: Pages: 192 Downloads: 33
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Subjects:

  • Red alder -- Mechanical properties.,
  • Oregon oak -- Mechanical properties.

Edition Notes

Statementby Hua Lei.
The Physical Object
Pagination192 leaves, bound :
Number of Pages192
ID Numbers
Open LibraryOL15417134M

This has the effect of either exaggerating or concealing these patterns, so the growth rate of the tree should be taken into consideration as well. Pore size Technically, wood pore diameters are measured in micrometers (sometimes called microns), but the scope and scale of such minute scientific measurements can be hard to grasp. The Red Alder Plantation Growth and Yield Model Total Number of Tr 56, Number of Plot for the following Stand Age: 18 37 28 17 36 4 15 99 6 13 83 12 0 6 11 24 33 Number of Plot for the following MST: Height-to-crown-base Diameter growth rate Height growth rate Mortality rate Crown Recession Size-Density. RAP-ORGANON. The coefficient of variation in ring widths along the stem height was greater than 21% at the cambial age 5–8 years and 9–12 years, and small variations were observed in other cambial age groups. The average wood density declined from m to m and then slightly increased with . Wilson BF, Gartner BL () Lean in red alder (Alnus rubra): growth stress, tension wood and righting response. Can J For Res 26 –; Wolverton C, Ishikawa H, Evans ML () The kinetics of root gravitropism: dual motors and sensors. J Plant Growth Regul 21 –

In tree trunks, the motor of gravitropism involves radial growth and differentiation of reaction wood (Archer, ). The first aim of this study was to quantify the kinematics of gravitropic response in young poplar (Populus nigra x Populus deltoides, ‘I’) by measuring the kinematics of curvature fields along trunks. Three phases were identified, including latency, upward curving. Clear red alder tends to be pricier as compared to the knotty one. Clear red alder also resembles hardwoods like Maple or birch. On the other hand, knotty red alder is an inexpensive choice which is commonly employed for domestic construction. It is also visually similar to utility woods like Aspen and Poplar. 2. Black Alder Wood. Alaska Specialty Woods Inc. has emerged as a world class, custom shop soundboard producer. We are also the largest producer in the world that uses % salvage sourced old growth Sitka Spruce timber that is procured locally. We are also the largest soundboard producer in the state of Alaska. Aged wood has long been regarded as a premium wood fiber. Grotta AT, Gartner BL, Radosevich SR, Huso M. Influence of red alder competition on cambial phenology and latewood formation in Douglas-fir. IAWA Journal. ; – Horacek P, Slezingerova J, Gandelova L. Effect of environment on the xylogenesis of Norway spruce (Picea abies [L.] Karst.) In: Wimmer R, Vetter RE, editors.

growing red alder plantations. We investigated how the trees responded to pruning in terms of how long it took to form clear wood and also the degree to which epicormic branches were formed. Existing pruning trials (Brodie and Harrington ) offered the opportunity to assess: (1) effects of date (season) of pruning live branches, and (2) the. the growth rate of the working-age population is associated with an increase of per cent in the growth rate of GDP per capita. In the case of an increase of 1 percent in the growth rate of the overall population, that is associated with a decrease of per cent in the growth rate of GDP per capita. A study was designed to investigate the effect of the growth retardant paclobutrazol on root and trunk cambial growth and fine root development of cm diameter white oak (Quercus alba L.), red oak (Quercus rubrum L.), sweetgum (Liquidambar stryaciflua L.), and tuliptree (Liriodendron tulipifera L.) growing in plantations.   Trees that died between and tended to have slower growth rates than trees that survived (D.A. Coomes & R. B. Allen, unpublished data), so our approach overestimates the average growth rate of the population; this issue is not considered further in this paper. The vast majority of trees are single‐stemmed and resprouting is uncommon.

effects of growth rate and cambial age on wood properties of red alder (Alnus rubra Bong.) and Oregon white oak (Quercus garryana Dougl.) by Hua Lei Download PDF EPUB FB2

The Effects of Growth Rate and Cambial Age on Wood Properties of Red Alder (Alnus rubra Bong.) and Oregon White Oak (Quercus garryana Dougl.) by Hua Lei A THESIS submitted to Oregon State University in partial fulfillment of the requirements for the degree of Doctor of Philosophy Completed September 5, Commencement June, Effect of growth rate on the anatomy, specific gravity, and bending properties of wood from 7-year-old red alder (Alnus rubra)1 Hua Lei, Barbara L.

Gartner, and Michael R. Milota Abstract: Understanding the association between growth rate and wood properties is of practical importance to maximizing and sustaining wood and fiber production. Abstract. Graduation date: This study was to investigate effects of growth rate\ud and cambial age on properties of wood from two increasingly\ud used hardwood species, red alder (Alnus rubra Bong.) and\ud Oregon white oak (Quercus garryana Dougl.), for better\ud understanding factors affecting wood quality in hardwoods.\ud Thirty 7-year-old trees grown at widely varying rates were\ud.

Graduation date: This study was to investigate effects of growth rate and cambial age on properties of wood from two increasingly used hardwood species, red alder (Alnus rubra Bong.) and. Growth patterns, ' of rel alder.

Pages in Hibbs, D.E., D.S. DeBell, and R.F. Tarrant, eds. The Biology and Management of Red Alder. Corvallis, OR: Oregon State University Press. About This File: Some understanding of growth patterns of trees and stands is prerequisite to management of red alder.

The growth patterns of a species. Abstract. We investigated the influence of cambial age on correlations between different wood traits and the possibility of early selection in order to help decision-making for the improvement of juvenile wood in white spruce (Picea glauca (Moench) Voss).Increment cores were analysed from trees covering 25 open-pollinated families from a year-old provenance–progeny trial in Quebec.

The effect of initial planting density (, 1, 1, and 2, trees per ha) on tree growth, wood density, and wood anatomical properties was studied in a 9-year-old Heave brasiliensis. However, Medhurst et al. () reported that the impact of reduced competition and increased diameter growth rate on the properties of eucalypt wood is not well defined or understood.

Silvicultural practices and environment are considered to be relevant factors in wood density determining the effects of ring width and cambial age on wood density. The treatments consisted of plots having different proportions of Douglas-fir vs. red alder, different red alder planting dates, and one of two total planting densities.

Cambial growth was tracked using the pinning method. Cambial activity in most trees began between May 12 and and ended between August 27 and September   So whatever is done to modify the growth rate may modify the strength properties of the wood that is formed.

TABLE 2 Effect of spacing on some wood properties (means) of year-old P. patula at Rongai, Northern Tanzania Square Basic MOE MOR Toughness Compression spacing density (N mm-2) (N mm-2) strength strength (m) (kg m-3) (mmN (N mm-2) mm.

lected wood properties for red alder by exploring radial variation from pith to bark at two heights within each tree on a growth increment basis. There were two specific objectives: 1. Create and evaluate pith-to-bark profiles of red alder for juvenile wood effect on the properties of specific grav-ity (SG), modulus of rupture (MOR).

All models show that black alder height growth pattern is characterized by a very high growth rates when young (Martin,Lockow,and Thibaut et al., mention annual shoot elongation of up to m between ages 4 and 10 in suitable sites), but with an early decrease.

By black alder reaches half the height it will achieve. Intensive management in plantations affects growth features, biomass and wood properties of different tree species, as demonstrated by Lei et al. (), Debell et al. (), and Naji et al. () on red alder (Alnus rubra), poplar (Populus spp.), and rubberwood (Hevea brasiliensis), respectively.

Numerous studies have examined the effects of. Red alder's pioneer nature, rapid growth, and genetic variation show potential for improvement in growth and quality through breeding [19], implying potential shifts in wood quality.

There is a relatively unexplored factor that could greatly affect wood quality in both current and future timber resources (particularly fast-grown material). This paper reviews the effects of silviculture on wood quality. The term silviculture is employed to encompass a broad range of forest management practices which may alter a forest’s composition, growth, and environment.

Generally, the main components for assessing wood quality for structural purposes are strength, stiffness, and dimensional stability; while pulp and paper quality. Distribution: Red Alder is found from southeast Alaska to southern California, with some isolated communities in northern Idaho.

Growth: Red Alder grows rapidly and can reach feet (m). It is relatively short-lived and rarely lives past years. Habitat: Red Alder is most often found in moist woods and along streambanks. It quickly colonizes recently cleared land. Effect of growth rate on the anatomy, specific gravity, and bending properties of wood from 7-year-old red alder (Alnus rubra).

Canadian Journal of Forest Research Canadian Journal of Forest Research Issues in Forestry Research and Application: Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Forestry Research and Application.

The editors have built Issues in Forestry Research and Application: Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Forestry Research and. trees with low growth rates.

Time of year of treatment had little effect on tree growth rates, occlusion rate, epicormic branch formation, and damage. Pruning young trees did not result in any damage or loss of growth. To maximize the amount of clear wood it would be best to prune as soon as logistically possible.

Thus, if economic incentives are. Abstract. Inter-clonal and intra-clonal wood properties and their variations from pith to bark were evaluated for wood density and anatomical features on rubber wood (Hevea brasiliensis ) from a 9-year-old plantation with planting densities of and trees per hectare comprised of clones RRIM and RRIM   Variations in intrinsic wood properties [growth ring width (GRW), specific gravity (SG), fiber length (FL), and microfibril angle (MFA)] of 17–year-old Melia azedarach trees grown in two sites in northern Vietnam were investigated for effective utilization of the wood.

Five discs were collected at, and m heights above the ground. PHYSICAL PROPERTIES OF WOOD Physical properties describe the quantitative characteristics of wood and its behavior to external influences other than applied forces.

Included are such properties as moisture content, density, dimensional stability, thermal and pyrolytic (fire) properties, natural durability, and chemical resistance. As a general rule, their wood has the most constant pith-to-bark properties of any wood type.

For example, red alder (Alnus rubra Bong) shows no significant change in wood density across the radius (Gartner et al., ; Harrington and DeBell, ) or at radial growth rates that.

Although use of red alder has increased many fold in the last 30 years, current production is still substantially below the current growth rate, and supplies are adequate for additional utilization of red alder.

Characteristics and Properties Red alder wood is almost white when freshly cut but quickly changes to a light tan or light brown with. We investigated the influence of cambial age on correlations between different wood traits and the possibility of early selection in order to help decision-making for the improvement of juvenile wood in white spruce (Picea glauca (Moench) Voss).

Increment cores were analysed from trees covering 25 open-pollinated families from a year-old. Effect of tree spacing on growth and wood density of year-old Cariniana legalis trees in Brazil. Southern Forests: a Journal of Forest Science: Vol. 80, No. 4, pp. Relationship between wood density and the growth traits.

Average tree age and relative growth rate (RGR) differed significantly between the pioneer and shade‐tolerant species (p. A study of wood quality in young red alder trees showed that properties remained remarkably uniform across growth rates from to mm per year of radial growth.

Growth rate had no effect on specific gravity, MOE or MOR in bending, fiber diameter, or the proportion of the growth. Purchase Cambial Growth, Root Growth, and Reproductive Growth - 1st Edition.

Print Book & E-Book. ISBNVariation in the anatomy and specific gravity of wood within and between trees of red alder (Alnus rubra Bong.). Wood and Fiber Science Lei, H., B. Gartner, and M. Milota. Effect of growth rate on the anatomy, specific gravity, and bending properties of wood from 7-year-old red alder (Alnus rubra Bong.).

Canadian Journal. Red Alder wood is soft and even-grained and is used particularly for firewood, but Native Americans have used it for a variety of small items such as bowls and rattles. These fast-growing trees often grow 1 meter per year until 20 years of age. The trees can live to years of age with trunks from 36 to 46 cm in diameter.

Red alder grows.The number of planted trees per hectare influences individual volume growth, which in turn can affect wood properties. The objective of this study was to assess the effect of six different plantation spacings of jack pine (Pinus banksiana Lamb.) 25 years following planting on tree growth, morphology, and wood properties.

Stem analyses were performed to calculate annual and cumulative diameter.Since the effect of crown size is expressed indirectly through the rate of cambial growth (Sundberg et al., ), annual ring width has been superimposed on variation with cambial age in models for predicting wood density (Gardiner et al., ).