Properties of Wood and Pulp Fibers From Lodgepole Pine (Pinus Contorta) as Compared to Scots Pine (Pinus Sylvestris)

Sable, Inese; Grinfelds, Uldis; Jansons, Āris; Vikele, Laura; Irbe, Ilze; Verovkins, Anrijs; Treimanis, A.

doi:10.15376/biores.7.2.1771-1783

Cited by 38 publications

(28 citation statements)

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“…However, the comparison with literature data should be done with caution due to differences among different studies in extraction procedures, solvents used, time of extraction, and tree age. In Latvia, Sable et al (2012) found less total extractives (2.9%) in 27-year-old Pinus sylvestris. In young Pinus pinaster (17 years) values of 4.2% to 6.1% were found in Portugal (Fernandes 2006, Gaspar et al 2011.…”

Section: Chemical Properties Of Woodmentioning

confidence: 80%

“…Many wood properties such as stiffness and mechanical strength (Verkasalo & Leban 2002), retractility (Riesco-Muñoz et al 2008), resistance to biodegradation (ReyPrieto & Riesco-Muñoz 2012), and the derived paper quality (Sable et al 2012) are strongly affected by intrinsic wood properties such as density (mass of wood cell wall material per unit volume), which is considered one of the most important indicator of wood quality (Zobel & Van Buijtenen 1989), along with fibre and microfibril orientation. However, wood density can vary both within and among trees as a result of the combinations of various density components (Gaspar et al 2008a).…”

Section: Introductionmentioning

confidence: 99%

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Physical, chemical and mechanical properties of Pinus sylvestris wood at five sites in Portugal

Fernandes¹,

Gaspar²,

Pires³

et al. 2017

iForest

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(4-5)The reduction of resinous species in Portuguese forest areas has caused constraints to wood industry supplies. Portugal represents the extreme southwest of Scots pine (Pinus sylvestris) natural distribution and large gaps exist in the knowledge of its wood-quality characteristics. Understanding the relationship between these traits is important for recognizing which combination of wood properties is the most suitable for specific uses. To address these questions, we assessed wood-quality traits, namely, wood-density components (microdensitometric analysis), chemical composition (NIR spectrometry) and mechanical properties (bending tests) of wood samples collected at five representative forest sites in Portugal. Our results showed that Portuguese Pinus sylvestris has good radial growth and denser wood, higher extractive content and higher stiffness and strength than northern European provenances. The lignin content was within the range attributed to softwoods. Among the Portuguese stands, trees growing at lower-altitude sites exhibited denser wood and higher mechanical properties, while trees from high-elevations showed higher amounts of lignin. Ring density was more strongly correlated with earlywood than latewood density. A negative, non-significant correlation was found between ring density and width, supporting the assumption that the higher radial growth (ring width) does not negatively affect wood quality (density). In general, chemical properties had a weak relationship with physical and mechanical properties (MOE and MOR). Both mechanical traits were positively correlated with density and growth components, supporting the assumption that trees with high radial growth do not exhibit poorer mechanical performances.

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Section: Chemical Properties Of Woodmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Physical, chemical and mechanical properties of Pinus sylvestris wood at five sites in Portugal

Fernandes¹,

Gaspar²,

Pires³

et al. 2017

iForest

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“…Variación de la composición química (%) dentro y entre las especies de pinos estudiadas. En general, la madera con bajos contenidos de lignina y extractos puede ser más fácil de deslignificar y favorecer el proceso de pulpeo, así como la bioconversión para la producción de biocombustibles líquidos (Sable et al, 2012;Zeng et al, 2014). La madera de P. herrerae presentó contenidos de lignina y extractos totales más bajos que los de las otras especies, por lo cual sería más conveniente para producir pulpa para papel y en la bioconversión por su alto contenido de celulosa.…”

Section: Resultados Y Discusiónunclassified

“…and bioconversion for the production of liquid biofuels (Sable et al , 2012;Zeng et al, 2014). P. herrerae wood showed lower contents of lignin and extracts than other species, and therefore, it could be more suitable for producing pulp for paper and for bioconversion, due to its high content of cellulose.…”

Section: Contribución Por Autormentioning

confidence: 99%

Composición lignocelulósica de Pinus ayacahuite Ehrenb. ex Schltdl., P. leiophylla Schlecht. & Cham. y P. herrerae Martínez

Honorato-Salazar

Hidalgo

Hernández

2017

RMCF

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En el municipio Pueblo Nuevo, Durango se produce la cuarta parte de la producción maderable estatal y 89 % se basa en 12 especies de Pinus; sin embargo, no existen estudios sobre la composición química de la madera de los pinos que se aprovechan. El objetivo de este trabajo fue determinar la composición lignocelulósica y los contenidos de cenizas, extractos en etanol-benceno y en etanol de la madera de Pinus ayacahuite, P. leiophyla y P. herrerae, de acuerdo con los procedimientos de las normas TAPPI y ASTM. Se tomaron muestras al azar de cinco a seis árboles por especie, con cinco repeticiones por árbol para cada prueba. Se efectuaron pruebas de normalidad y homogeneidad de varianzas de los datos obtenidos y una comparación múltiple de medias (Bonferroni, α = 0.05) con el programa SAS. Con excepción del contenido de cenizas, los resultados mostraron que existen diferencias significativas entre especies (p < 0.05), para los valores promedio de los contenidos determinados. La madera de Pinus ayacahuite tiene altos contenidos de extractos en etanol-benceno y de lignina. La de P. herreae presenta valores menores, pero los de holocelulosa y celulosa son superiores. La madera de P. leiophylla tiene contenidos de holocelulosa, celulosa, hemicelulosas y cenizas más bajos. La lignina, hemicelulosas y celulosa de la madera de loss taxa estudiados apoya su uso como fuente de materia prima para la obtención de pulpa para papel y biocombustibles líquidos.

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“…The quality of timber for industrial purposes is influenced by many factors such as density, hardiness, colour, tree ring pattern and knottiness of wood (Shmulsky and Jones 2011) along with diverse fibre parameters (Sable et al 2012). If jointed boards are considered as the product of interest, knottiness of timber is a crucial parameter, which affects the yields of production, as the knots should be removed from the wood, thus decreasing the volume of expedient wood (Sauter 1997).…”

Section: Introductionmentioning

confidence: 99%

Proportion of knotty wood in stems of 28-year old lodgepole and Scots pine in experimental plantation in Zvirgzde, Latvia

Jansons

Matisons

Pobiarzens

et al. 2017

Folia Forestalia Polonica

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In forestry, alien tree species are planted to maximize yield from a stand by increasing productivity and decreasing environmental risks. In Eastern Europe, lodgepole pine (Pinus contorta var. latifolia) might be used as a source of biomass and industrial wood; however, before any recommendations are given, possible gains of the novel species should be scrupulously evaluated. In this study, we compared volume and proportion of knotty stemwood (VKN) of native Scots pine (Pinus sylvestris) from first generation seed orchards and provenances of alien lodgepole pine [Fort Nelson (58°38' N, 122°41' W) and Summit Lake (54°24› N, 122°37› W)] at the age of 27 years growing in central Latvia. We also assessed the relationships between VKN and several morphometric parameters.Stem diameter of both species was similar; however, Summit Lake provenance of lodgepole pine exceeded Scots pine in height, while Fort Nelson provenance was lower than Scots pine. Although Scots pine produced nearly two times less whorls than lodgepole pine, volume of knotless stemwood did not differ significantly between the species; though it was higher for Summit Lake provenance of lodgepole pine compared to Scots pine. In contrast, the proportion of VKN differed significantly between both the species and the provenances. Scots pine showed the lowest proportion of VKN (~ 9%) and Fort Nelson provenances of lodgepole pine showed the highest proportion of VKN (~ 14%). Thus, Summit Lake appears more suitable for the production of industrial wood amongst the provenances of lodgepole pine; nevertheless, higher quantity of leftover material is expected. Some morphometric parameters correlated with VKN and the proportion of VKN, but these relationships differed between species and provenances. The total cross-section of branches was the best predictors of VKN for Scots pine and Fort Nelson provenance of lodgepole pine, while stem diameter showed the strongest correlation for Summit Lake provenance. Number of whorls and mean diameter of living branches were the best predictors of the proportion of VKN for lodgepole pine and Scots pine, respectively. Accordingly, morphometric parameters might be useful for the selection of the best trees of lodgepole pine.

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Properties of Wood and Pulp Fibers From Lodgepole Pine (Pinus Contorta) as Compared to Scots Pine (Pinus Sylvestris)

Cited by 38 publications

References 0 publications

Physical, chemical and mechanical properties of Pinus sylvestris wood at five sites in Portugal

Physical, chemical and mechanical properties of Pinus sylvestris wood at five sites in Portugal

Composición lignocelulósica de Pinus ayacahuite Ehrenb. ex Schltdl., P. leiophylla Schlecht. & Cham. y P. herrerae Martínez

Proportion of knotty wood in stems of 28-year old lodgepole and Scots pine in experimental plantation in Zvirgzde, Latvia

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