The relationship between vegetation management and the wood 
and pulping properties of a Eucalyptus hybrid clone

Little, Keith M.; Staden, J. Van; Clarke, G. P. Y.

doi:10.1051/forest:2003061

Cited by 16 publications

(10 citation statements)

References 18 publications

(18 reference statements)

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“…These findings are coincident with those of Snook et al (1986). Thus, the increase in growth generated by weed control and fertilization does not necessarily result in a decrease in wood quality as reported by other authors (Little et al 2003;Efhami et al 2012). These findings are coincident with those of Snook et al (1986).…”

Section: Growth Parameters and Wood Propertiessupporting

confidence: 61%

“…Nevertheless, most references indicated that with diffuseporous species, there is no relationship between growth rate and wood density (DeBell et al 2002;Zhang et al 2003;Pliura et al 2005), which agrees with the results of this work. Most studies describing the effects of weed control and fertilization on wood quality only include short-term effects, for periods lasting from several months to 2 years (Wilkins and Horne 1991;Little et al 2003). In the very short term, important structural changes in wood cells that form under different fertilizer concentrations usually occur (Luo et al 2005;Pitre et al 2007).…”

Section: Growth Parameters and Wood Propertiesmentioning

confidence: 99%

“…The application of nitrogen (N) fertilizers and the control of herbaceous vegetation have received considerable attention as two different approaches that can enhance the growth rate and the productivity of forest plantations (Little et al 2003;Bilodeau-Gauthier et al 2011).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Weed Control and Fertilization on Wood and Chemi-mechanical Pulp Properties of a Populus deltoides Clone

et al. 2013

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Weed control and fertilization usually lead to an increase in the growth rate of trees and, consequently, to a possible modification of the quality of the wood and its end products. The effect of weed control and fertilization practices were determined on tree growth parameters, wood density, fiber weight, fiber length, and chemical wood composition, as well as the chemi-mechanical pulp properties, for 8-year-old Populus deltoides `Delta Gold´ grown in Argentina. Four treatments belonging to a randomized complete block design trial were analysed: no weeding after planting (C), mechanical weed control (M), chemimechanical weed control (CHM), and fertilized + chemimechanical weed control (CHM-F). Soda-sulfite chemi-mechanical pulps were produced from said trees. Handsheets were prepared from the pulps, and their physical, mechanical, and optical properties were determined following international standards. Several wood and pulp properties were influenced by the studied silvicultural practices. In the context of this study, silvicultural treatments applied to Populus deltoides 'Delta Gold' (formerly 'Stoneville 66') trees can be applied to increase productivity (volume and fibrous output) without detrimental consequences to wood and pulp properties, except for a slight reduction in brightness.

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Section: Growth Parameters and Wood Propertiessupporting

confidence: 61%

Section: Growth Parameters and Wood Propertiesmentioning

confidence: 99%

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Effects of Weed Control and Fertilization on Wood and Chemi-mechanical Pulp Properties of a Populus deltoides Clone

et al. 2013

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“…Little et al (2003) stated for Eucalpytus that if wood density rises above 300 kg/m 3 , there is a decline in paper strength in terms of tensile, burst and folding endurance. In our study we found significant height effects only with tear index, zero span tensile strength and opacity suggesting that the within-tree variability for these properties is less pronounced.…”

Section: Discussionmentioning

confidence: 99%

Effects of site on fibre, kraft pulp and handsheet properties of Eucalyptus globulus

Wimmer¹,

Downes²,

Evans³

et al. 2008

Ann. For. Sci.

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-• Eight-year old trees from two Eucalyptus globulus Labill. clones planted across three different sites in Tasmania, Australia, were sampled for wood and kraft pulp/handsheet properties.• Site had a significant effect on all measured properties. Compared with the poor site (Parkham) the wood from the good site (West Ridgley) had on average 11% lower wood density. The poor site had also greater microfibril angles, shorter fibres at lower pulp yields.• The handsheets produced with pulp from the poor site resulted in comparatively higher bulkiness, lower burst, lower tear and tensile indices, lower zero span tensile strength, but higher opacity, higher light scattering and higher surface roughness. Significant height effects were found with all wood properties, and also with tear index, zero span tensile strength and opacity.• Discriminant analysis showed that for 76 out of 100 handsheets the raw material source, i.e. growth site, could be predicted correctly using a set of handsheet properties with tear index and bulk index being most prominent.• This is unique evidence that site conditions are strongly reflected in handsheet properties produced from Eucalyptus pulp.eucalypt / wood quality / fibre length / pulp / paper Résumé -Effet du site sur les propriétés des fibres, de la pâte et des feuilles d'essai d'Eucalyptus globulus.• Nous avons échantillonné des arbres de huit ans de deux clones d'Eucalyptus globulus Labill., sur trois sites différents de Tasmanie en Australie, pour analyser les propriétés du bois et les propriétés papetières.• Le site a un effet significatif sur toutes les propriétés. Sur le meilleur site (West Ridgley), le bois a une densité inférieure de 11 % à celle obtenue sur le site le plus pauvre. Ce dernier (Parkham) présente un angle des microfibrilles plus important, des fibres plus courtes et un rendement en pâte plus faible.• Les feuilles fabriquées avec de la pâte du site pauvre conduisent à une main plus importante, un éclatement, une déchirure et des indices de traction moindres, une résistance à la traction à la mâchoire jointive plus faible, mais une opacité plus forte, une diffusion à la lumière et une rugosité de surface plus importantes.• Des effets significatifs de la hauteur ont été mis en évidence pour toutes les propriétés du bois mais aussi pour l'index de déchirement, pour la résistance à la traction à la mâchoire jointive et pour l'opacité. L'analyse discriminante a montré que pour 76 feuilles sur 100, l'origine de la matière première, c'est-à-dire le site de production, pouvait être prédite correctement en utilisant un jeu de propriétés des feuilles, l'indice de déchirement et la main étant les plus évidents.• Cela montre de manière originale que les conditions stationnelles sont reflétées dans les propriétés de feuilles de papiers produites avec de la pâte mécanique.Eucalyptus / qualité du bois / longueur des fibres / angle des microfibrilles / pâte kraft / papier

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“…An increased growth rate during the early stages of development will necessarily modify the amount of wood in areas close to the pith. These changes may also strongly alter the quality of this stem, particularly in species with short production cycles (10 years) (De Bell et al, 1998;Little et al, 2003;Efhami et al, 2012). Studies in Populus have reported different stages of xylem maturation in cellular components of the same age, although this varies 2 the short-term (years 1 and 3) and long-term (year 10) effects of the treatments on wood characteristics.…”

Section: Introductionmentioning

confidence: 99%

Short-term and long-term effects of weed control and fertilization on growth and wood anatomy of a Populus deltoides clone

2015

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Aims of study: The short- and long-term effects of weed control and fertilization on growth and wood anatomy of 10-y-old Populus deltoides were investigated. Weed control and fertilization usually leads to an increase the growth rate of trees, and consequently, a possible modification in the quality of produced wood.Area of study: We analyzed trees from an experimental plantation in Buenos Aires, Argentina (34°50’ S Lat; 60°30’ W Long).Methods: 32 trees from three treatments: mechanical weed control (M), chemical and mechanical weed control (CHM) and fertilized plus chemical and mechanical weed control (CHM-F) were analyzed. Basal area, fibre morphology, cell wall area and vessel size were measured in the growth ring 1, 3 and 10.Results: differences on wood anatomy among treatments were mainly observed at the third year (short-term effect). Long-term negative effects were not observed. Fertilized trees had greater proportion and quality of wood closer to pith.Research highlights: fibre and vessel differences seen in CHM and CHM-F compared to controls in year 3 could be interpreted as evidence of maturation in cambial development (thicker, longer and wider fibres and greater vessels). The CHM-F treatment had a greater proportion of wood that showed characteristics of more mature wood.Key words: silvicultural treatment; wood quality; fibre properties; vessels; poplar; cambial maturity.

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The relationship between vegetation management and the wood and pulping properties of a Eucalyptus hybrid clone

Cited by 16 publications

References 18 publications

Effects of Weed Control and Fertilization on Wood and Chemi-mechanical Pulp Properties of a Populus deltoides Clone

Effects of Weed Control and Fertilization on Wood and Chemi-mechanical Pulp Properties of a Populus deltoides Clone

Effects of site on fibre, kraft pulp and handsheet properties of Eucalyptus globulus

Short-term and long-term effects of weed control and fertilization on growth and wood anatomy of a Populus deltoides clone

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