Abstract
The natural forests of Laricio Pine (Pinus nigra Subsp. salzmannii) cover in Spain an area of 353,000 ha, producing annually 310,000 m3 of roundwood. This species is considered as the fourth, most important Spanish conifer, being its timber frequently used in construction. The natural area of distribution of Laricio pine in Spain is officially divided into ten different regions of provenance, being only four of them considered as productive. The present study on the influence of growth conditions on extracted wood basic density (EBD) is carried out on 89 P. nigra trees, sampled from the two most productive Spanish regions of provenance (R.7 and R.8) in seven different sites. Cross-sectional disks were cut at 3 m (in 89 trees) and every 3 m height (in 18 trees) from the butt up to 15 m. For assessing the pattern of radial variation of the properties, 20×20×20 mm3 wood samples were taken radially from every cross-sectional disk. In every 20×20×20 mm3 wood sample, age and distance to the pith of the central annual ring was recorded, together with the average growth rate. Extractive content and EBD were measured in every sample. The results lead to the conclusion that there is not a significant relationship between EBD and provenance or growth rate. On the contrary, a significant relationship has been found between EBD and site quality or cambial age. The results also demonstrate that in a tree EBD tends to diminish from the base to the top and from the pith outwards. The main result of the present study is related with the observation that for the same cambial age, annual ring width has no significant influence on EBD, confirming that its utility as a predictor of the quality of timber is highly questionable, at least if the ring curvature is not considered.
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References
Baonza MV, Gutiérrez A, Grau JM (2001) Variación de la densidad, la humedad, el duramen y la corteza con la altura en el tronco de pino laricio. III Congreso Forestal Español. Granada, Mesa, p 9
Catalan BG, Gil MP, Galera PR, Martin AS, Agundez LD, Alia MR (1991) Regiones de procedencia Pinus sylvestris L., Pinus nigra Arn. Subsp. Salzmanni . Monografía ICONA, ISBN 84-8014-004-6
Cown DJ (1973) Physical properties of corsican pine grown. N Z J Sci 4(1):76–93
EN 384R (2000) Structural timber. Determination of characteristic values of mechanical properties and density
Fernández-Golfín JI, Díez MR (1996) Growth rate as a predictor of density and mechanical quality of sawn timber from fast growing species. Holz Roh- Werkst 54:171–174
Fernández-Golfín SJI, Díez BMR, Hermoso PE, Conde GM (2004) Mechanical characterization of timber from Spanish provenances of Laricio Pine, according to European standards. Wood Sci Technol 38(1):25–34
Gómez LJA (1996) Pinus nigra Arn en el Sistema Ibérico: tablas de crecimiento y producción. Monografías INIA 93:106
Gómez LJA, Gutiérrez OA, Baonza MMV (1996) Influencia de la intensidad de clara en el crecimiento, la producción y las características de la madera en una masa artificial de Pinus sylvestris L. Rev invest agraria: Serie Sistemas y Recur Forestales 5(2):257–273
Gutiérrez OA, Baonza MMV (2001) Influencia de los extractivos en las propiedades físico-mecánicas de la madera de Pinus pinea . L. III Congreso Forestal Español. Granada, Mesa, p 9
Gutiérrez OA, Baonza MMV, Fdez-Golfín JI (1997) Variaciones de la densidad de la madera de pino silvestre de los sistemas Central e Ibérico. II Congreso forestal español, Irati-97. Granada
Harris MJ, Cown DJ (1991) Basic wood properties. In: Properties and uses New Zealand radiata pine. Wood properties, Chap. 6, vol I. pp 1–28
Kollmann FFP, Côté WA (1968) Principles of wood science and technology, I Solid wood. Springer, Berlin Heidelberg, New York, p 552
McMillin CW (1968) Chemical composition of loblolly pine wood as related to specific gravity, growth rate, and distance from pith. Wood Sci Technol 2:233–240
Panshin AJ, Zeeuw C (1980) Textbook of wood technology. McGraw-Hill, New York, p 722
Pernestål K, Jonsson B, Larsson B (1995) A simple model for density of annual rings. Wood Sci Technol 29:441–449
Stanley RG (1969) Extractives of wood, bark, and needles of the southern pines. Forest Prod J 19(11):50–56
Tsoumis G, Panagioditis N (1980) Effect of growth conditions on wood quality characteristics of black pine (Pinus nigra Arn.). Wood Sci Technol 14:301–310
Uprichard JM (1991) Chemistry of wood and bark. In: Kininmonth JA, Whitehouse LJ (eds) Properties and uses of New Zealand radiata pine. Wood properties, vol 1. Research Institute, Rotorua New Zealand, pp 4.1–4.45
Wood Handbook (1999) Wood as an engineering material. Forest Products Laboratory. USDA Forest Service. Madison, Wisconsin
Yao J (1970) Influence of growth rate on specific gravity and other selected properties of loblolly pine. Wood Sci Technol 4:163–175
Zhang SY (1995) Effect of growth rate on wood specific gravity and selected mechanical properties in individual species from distinct wood categories. Wood Sci Technol 29:451–465
Zhang SY, Simpson D, Morgenstern EK (1996) Variation in the relations of wood density with growth in 40 black spruce (Picea mariana) families grown in New Brunswick. Wood Fiber Sci 28(1):91–99
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Oliva, A.G., Merino, V.B., Seco, J.I.FG. et al. Effect of growth conditions on wood density of Spanish Pinus nigra . Wood Sci Technol 40, 190–204 (2006). https://doi.org/10.1007/s00226-005-0014-0
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DOI: https://doi.org/10.1007/s00226-005-0014-0