Physical and mechanical properties of wood from Eucalyptus camaldulensis clonal plantation
DOI:
https://doi.org/10.22320/s0718221x/2026.31Keywords:
Eucalyptus camaldulensis, mechanical properties, Morocco, wood shrinkage, wood densityAbstract
The technological quality and potential utilization of wood from individual Eucalyptus clones under Moroccan plantation conditions remain uncertain, particularly for clone 699 at the age and under the plantation conditions investigated in this study. This study aimed to evaluate the physical and mechanical properties of wood from a nine-year-old Eucalyptus camaldulensis clonal plantation (clone 699) in Morocco and to provide evidence on its potential for alternative wood uses. Ten logs from ten different trees were collected and processed into standardized test specimens. Physical characterization included moisture content, basic density, radial, tangential and volumetric shrinkage, and shrinkage anisotropy, while mechanical characterization included dynamic and static modulus of elasticity, bending strength, compression strength, and axial tensile strength. The studied wood showed high basic density (668kg/m³), medium volumetric shrinkage (14,53%), and normal shrinkage anisotropy (2,40), while its mechanical properties were generally in the low-to-intermediate range compared with previously reported Eucalyptus materials. Overall, the physical and mechanical characterization provides evidence on the technological quality of nine-year-old clone 699 under the studied plantation conditions and contributes to reducing uncertainty regarding its potential utilization beyond its traditional applications.
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Acosta, M. S.; Marco, M.; Piter, J. C.; Zitto, M. A. S.; Villalba, D. I.; Carpineti, L. 2007. Physical and Mechanical Properties of Eucalyptus grandis × Eucalyptus tereticornis Hybrid Grown in Argentina. In: Proceedings of the IUFRO All-Division 5 Conference: Forest Products and Environment – A Productive Symbiosis. Taiwan Forestry Research Institute (TFRI), Taipei, Taiwan, October 29 – November 2, 2007, 35 pp.
https://www.researchgate.net/publication/357023238
Adetayo, O.A.; Dahunsi, B.I.O. 2017. Variation of density and compressive strength before and after charring of some selected constructional timber species of Southern Nigeria. FUOYE Journal of Engineering and Technology 2(2): 43–46.
https://doi.org/10.46792/fuoyejet.v2i2.126
AFNOR. 1985. Bois - Détermination du retrait linéaire et du retrait volumique. Norme Française NF B 51-006.
AFNOR. 1985. Bois - Essai de compression axiale - Détermination de la résistance à la compression parallèle aux fibres de petites éprouvettes sans défaut. Norme Française NF B 51-007.
AFNOR. 1987. Bois - Flexion statique - Détermination de la résistance à la flexion statique de petites éprouvettes sans défaut. Norme Française NF B 51-008.
AFNOR. 1987. Bois - Flexion statique - Détermination du module d'élasticité en flexion statique de petites éprouvettes sans défaut. Norme Française NF B 51-016.
AFNOR. 1988. Bois - Essai de traction parallèle au fil - Détermination des caractéristiques mécaniques en traction de petites éprouvettes sans défaut. Norme Française NF B 51-017.
Amer, M.; Kabouchi, B.; Rahouti, M.; Famiri, A.; Fidah, A.; El Alami, S.; Ziani, M. 2020. Experimental study of the linear diffusion of water in clonal Eucalyptus wood. International Journal of Thermophysics 41(10). 142. https://doi.org/10.1007/s10765-020-02723-7
Amer, M.; Kabouchi, B.; Rahouti, M.; Famiri, A.; Fidah, A.; El Alami, S. 2021. Mechanical properties of clonal Eucalyptus wood. International Journal of Thermophysics 42. e20. https://doi.org/10.1007/s10765-020-02773-x
Amer, M.; Kabouchi, B.; Rahouti, M.; Famiri, A.; Fidah, A.; Ziani, M.; El Alami, S. 2019. Kinetic of cracks propagation related to the growth stress of clonal Eucalyptus wood. Journal of the Indian Academy of Wood Science 16(2): 155–161. https://doi.org/10.1007/s13196-019-00242-z
Amer, M.; Kabouchi, B.; Rahouti, M.; Famiri, A.; Fidah, A. 2017. Determination of growth stresses indicator, moisture profiles and basic density of clonal Eucalyptus wood. Journal of the Indian Academy of Wood Science 14(2): 91–98. https://doi.org/10.1007/s13196-017-0192-z
Awan, A.R.; Chughtai, M.I.; Ashraf, M.Y.; Mahmood, K.; Rizwan, M.; Akhtar, M.; Siddiqui, T.M.; Khan, R. 2012. Comparison for physico-mechanical properties of farm-grown Eucalyptus camaldulensis Dehn with conventional timbers. Pakistan Journal of Botany 44(6): 2067–2070. https://www.pakbs.org/pjbot/PDFs/44(6)/38.pdf
Baar, J.; Tippner, J.; Rademacher, P. 2015. Prediction of mechanical properties - modulus of rupture and modulus of elasticity of five tropical species - by non-destructive methods. Maderas. Ciencia y Tecnología 17(2): 239–252. https://doi.org/10.4067/S0718-221X2015005000023
Balboni, B.; Batista, A.; Rodrigues, R.; Garcia, J. 2020. Relationship between strength and density in juvenile and mature Eucalyptus sp. wood. Brazilian Journal of Animal and Environmental Research 3(3): 983–991. https://doi.org/10.34188/bjaerv3n3-019
Batista, D.C.; Klitzke, R.J.; Santos, C.V.T. 2010. Basic density and retractability of wood clones of three Eucalyptus species. Ciência Florestal 20(4): 665–674. https://doi.org/10.5902/198050982425
Bektas, I.; Guler, C.; Basturk, M.A. 2002. Principal mechanical properties of Eastern Beech wood (Fagus orientalis Lipsky) naturally grown in Andırın Northeastern Mediterranean region of Turkey. Turkish Journal of Agriculture and Forestry 26(3): 149–154. https://journals.tubitak.gov.tr/agriculture/vol26/iss3/6
Benin, C.C.; Watzlawick, L.F.; Hillig, E. 2017. Physical-mechanical properties of Eucalyptus benthamii wood under effect of planting spacing. Ciência Florestal 27(4): 1375–1384. https://doi.org/10.5902/1980509830219
Bordonne, P.A. 1989. Module dynamique et frottement intérieur dans le bois. Mesures sur poutres flottantes en vibrations naturelles. PhD thesis. Institut National Polytechnique de Lorraine: Nancy, France. 136 pp. https://agritrop.cirad.fr/598129/
Brancheriau, L.; Baillères, H. 2002. Natural vibration analysis of clear wooden beams: a theoretical review. Wood Science and Technology 36(4): 347–365. https://doi.org/10.1007/s00226-002-0143-7
Brancheriau, L.; Baillères, H. 2003. Use of the partial least squares method with acoustic vibration spectra as a new grading technique for structural timber. Holzforschung 57(6): 644–652. https://doi.org/10.1515/HF.2003.097
Brunetti, M.; Aminti, G.; Wessels, C.B.; Nocetti, M. 2021. Mixed visual and machine grading to select Eucalyptus grandis poles into high-strength classes. Forests 12(12). e1804. https://doi.org/10.3390/f12121804
Bucur, V. 2006. Acoustics of Wood. 2nd ed. Springer-Verlag: Berlin Heidelberg, Germany. ISBN 978-3-540-30594-1. 393 pp. https://doi.org/10.1007/3-540-30594-7
Carrillo, I.; Aguayo, M.G.; Mendonça, R.T.; Elissetche, J.P. 2015. Variations in wood anatomy and biometry of Eucalyptus globulus genotypes with different wood density. Wood Research 60(1): 1–10. http://www.woodresearch.sk/wr/201501/01.pdf
Chowdhury, M.Q.; Ishiguri, F.; Hiraiwa, T.; Matsumoto, K.; Takashima, Y.; Iizuka, K.; Yokota, S.; Yoshizawa, N. 2012. Variation in anatomical properties and correlations with wood density and compressive strength in Casuarina equisetifolia growing in Bangladesh. Australian Forestry 75(2): 95–99. https://doi.org/10.1080/00049158.2012.10676390
Costa, S.E.L.; Santos, R.C.; Vidaurre, G.B.; Castro, R.V.O.; Rocha, S.M.G.; Carneiro, R.L.; Campoe, O.C.; Santos, C.P.S.; Gomes, I.R.F.; Carvalho, N.F.O.; Trugilho, P.F. 2020. The effects of contrasting environments on the basic density and mean annual increment of wood from Eucalyptus clones. Forest Ecology and Management 458. e117807. https://doi.org/10.1016/j.foreco.2019.117807
De Boever, L.; Vansteenkiste, D.; Van Acker, J.; Stevens, M. 2007. End use related physical and mechanical properties of selected fast growing poplar hybrids (Populus trichocarpa × P. deltoides). Annals of Forest Science 64(6): 621–630. https://doi.org/10.1051/forest:2007040
El Haouzali, H.; Birche, B.E. 2024. Physical and mechanical properties of Eucalyptus wood from Moroccan clonal plantations. Matériaux & Techniques 112. 602. https://doi.org/10.1051/mattech/2024028
El Haouzali, H.; Marchal, R.; Bléron, L.; Kifani, F.; Butaud, J.C. 2020. Mechanical properties of laminated veneer lumber produced from ten cultivars of poplar. European Journal of Wood and Wood Products 78(4): 715–722. https://doi.org/10.1007/s00107-020-01546-5
Famiri, A.; Kabouchi, B.; Baillères, H.; El Abid, A.; El Alami, S.; Hakam, A. 2011. Effet d’annelage des arbres sur pied sur la propagation des fissurations et déformations de sciage de deux espèces d’Eucalyptus: E. grandis et E. gomphocephala. Physical and Chemical News 59: 65–72. https://www.researchgate.net/publication/260714261
Famiri, A.; Kabouchi, B.; Hakam, A.; Gril, J. 2001. Sawing and growth stresses in green wood of eucalyptus E. grandis and E. gomphocephala. Forest Science 1(2): 45–50. https://www.researchgate.net/publication/266475416
Ferreira, M.D.; Melo, R.R.; Tonini, H.; Pimenta, A.S.; Gatto, D.A.; Beltrame, R.; Stangerlin, D.M. 2020. Physical–mechanical properties of wood from a eucalyptus clone planted in an integrated crop-livestock-forest system. International Wood Products Journal 11(1): 12–19. https://doi.org/10.1080/20426445.2019.1706137
Franke, S.; Marto, J. 2014. Investigation of Eucalyptus globulus wood for the use as an engineered material. In: Salenikovich, A. (Ed.), Proceedings of the World Conference on Timber Engineering (WCTE 2014), Quebec City, Canada, August 10–14, 2014, Vol. 1, pp. 435–442. https://www.researchgate.net/publication/312198486
Gérard, J.; Baillères, H.; Fournier, M.; Thibaut, B. 1995. Qualité du bois chez les Eucalyptus de plantation : étude de variation de trois propriétés de référence. Bois et Forêts des Tropiques 245: 101–117. https://doi.org/10.19182/bft1995.245.a19835
Gérard, J.; Guibal, D.; Paradis, S.; Cerre, J.-C.; Châlon, I.; Langbour, P.; Lotte, S.; Mejean, M.; Thibaut, A. 2012. Tropix 7: Caractéristiques technologiques de 245 essences de bois tropicaux (Version 7.5.1) [Computer software]. CIRAD. https://doi.org/10.18167/74726F706978
Gominho, J.; Figueira, J.; Rodrigues, J.; Pereira, H. 2001. Within-tree variation of heartwood, extractives and wood density in the eucalypt hybrid Urograndis (Eucalyptus grandis × E. urophylla). Wood and Fiber Science 33(1): 3–8. ttps://wfs.swst.org/index.php/wfs/article/view/1393
Gonçalez, J.C.; Keller, R.; Perré, P. 1997. Measurement of wood density on microscope slide by image analysis: application for certain species in the Amazon Forest. Bois et Forêts des Tropiques 250(4): 31–45. https://doi.org/10.19182/bft1996.250.a19860
Gonçalves, F.G.; Oliveira, J.T.S.; Della Lucia, R.M.; Sartório, R.C. 2009. Study of some mechanical properties of Eucalyptus urophylla × Eucalyptus grandis clonal hybrid wood. Revista Árvore 33(3): 501–509. https://doi.org/10.1590/S0100-67622009000300012
Hein, P.R.G.; Brancheriau, L.; Trugilho, P.F.; Lima, J.T.; Chaix, G. 2010. Resonance and near infrared spectroscopy for evaluating dynamic wood properties. Journal of Near Infrared Spectroscopy 18(6): 443–454. https://doi.org/10.1255/jnirs.907
Hein, P.R.G.; Lima, J.T.; Gril, J.; Rosado, A.M.; Brancheriau, L. 2012. Resonance of scantlings indicates the stiffness even of small specimens of Eucalyptus from plantations. Wood Science and Technology 46(4): 621–635. https://doi.org/10.1007/s00226-011-0431-1
Ibanez, T.; Chave, J.; Barrabé, L.; Elodie, B.; Boutreux, T.; Trueba, S.; Vandrot, H.; Birnbaum, P. 2017. Community variation in wood density along a bioclimatic gradient on a hyper-diverse tropical island. Journal of Vegetation Science 28(1): 19–33. https://doi.org/10.1111/jvs.12456
Kang, W.; Lee, N.H. 2004. Relationship between radial variation in shrinkage and drying defects of tree disk. Journal of Wood Science 50(3): 209–216. https://doi.org/10.1007/s10086-003-0559-1
Keylwerth, R. 1954. Ein Beitrag zur qualitativen Zuwachsanalyse. Holz als Roh- und Werkstoff 12(3): 77–83. https://doi.org/10.1007/BF02603340
Lima, J.T.; Rosado, C.S.; Trugilho, P.F. 2001. Assessment of wood density of seven clones of Eucalyptus grandis. Southern African Forestry Journal 191(1): 21–27. https://doi.org/10.1080/20702620.2001.10434147
Lima, M.P.; Biazzon, J.C.; De Araujo, V.A.; Munis, R.A.; Martins, J.C.; Cortez-Barbosa, J.; Gava, M.; Valarelli, I.D.; Morales, E.A.M. 2018. Mechanical properties evaluation of Eucalyptus grandis wood at three different heights by impulse excitation technique (IET). BioResources 13(2): 3377–3385. https://doi.org/10.15376/biores.13.2.3377-3385
Listyanto, T., Nichols, J. D., Glencross, K., & Schoer, L. (2020). Variation in density and shrinkage of six eucalyptus species and interspecific hybrid combinations at three sites in Northern New South Wales. IOP Conference Series: Materials Science and Engineering, 935(1), 012035. https://doi.org/10.1088/1757-899X/935/1/012035
Loulidi, I.; Famiri, A.; Chergui, M.; Elghorba, M. 2012. The physical and mechanical properties of Eucalyptus hybrid E. camaldulensis × E. grandis: Comparison with its parental species. Research Inventy: International Journal of Engineering and Science 1(1): 1–7.
https://api.semanticscholar.org/CorpusID:212559593
Marien, J.N. 1993. Le projet d’amélioration des Eucalyptus au Maroc 1987-1993. AFOCEL: Paris, France. 114 pp. https://bibliotecadigital.infor.cl/handle/20.500.12220/908
Marien, J.N.; Idrissi, A.A. 2011. Le développement des plantations clonales d’Eucalyptus au Maroc : Une dynamique toujours plus actuelle. Forêt Méditerranéenne 32(1): 31–38. https://agritrop.cirad.fr/565819/
Nogueira, M.C.; Almeida, H.; Araujo, V.A.; Vasconcelos, J.S.; Christoforo, A.L.; Almeida, T.H.; Lahr, F.A.R. 2019. Physical and mechanical properties of Eucalyptus saligna wood for timber structures. Ambiente Construído 19(2): 233–239. https://doi.org/10.1590/s1678-86212019000200319
Pima, N.E.; Iddi, S.; Chamshama, S.A.; Maguzu, J. 2018. Wood properties of Eucalyptus hybrid clones growing in Tanzania. International Journal of Agriculture and Forestry 8(6): 220–226.https://doi.org/10.5923/j.ijaf.20180806.04 http://article.sapub.org/10.5923.j.ijaf.20180806.04.html
Polge, H. 1966. Établissement des courbes de variation de la densité du bois par exploration densitométrique de radiographies d'échantillons prélevés à la tarière sur des arbres vivants : applications dans les domaines Technologique et Physiologique. Annales des Sciences Forestières 23(1): 1–206. https://doi.org/10.1051/forest/19660101
Quilho, T.; Pereira, H. 2001. Within and between-tree variation of bark content and wood density of Eucalyptus globulus in commercial plantations. IAWA Journal 22(3): 205–212. https://doi.org/10.1163/22941932-90000283
Rahayu, I.; Denaud, L.; Marchal, R.; Darmawan, W. 2015. Ten new poplar cultivars provide laminated veneer lumber for structural application. Annals of Forest Science 72(6): 705–715. https://doi.org/10.1007/s13595-014-0422-0
Rezende, R.; Andrade, H.; Silva, J.; Lima, J.; Faria, A.; Napoli, A. 2010. Air drying of logs from an Eucalyptus urophylla clone for carbonization use. Cerne 16(4): 565–572. https://doi.org/10.1590/S0104-77602010000400016
Ruy, M.; Gonçalves, R.; Pereira, D.M.; Lorensani, R.G.M.; Bertoldo, C. 2018. Ultrasound grading of round Eucalyptus timber using the Brazilian standard. European Journal of Wood and Wood Products 76(3): 889–898. https://doi.org/10.1007/s00107-018-1292-1
Serenini Jr., L.; Melo, R.R.; Stangerlin, D.M.; Pimenta, A.S. 2020. Wood quality of six Eucalyptus clones planted in northern Mato Grosso State, Brazil. Wood Research 65(4): 543–554. https://doi.org/10.37763/wr.1336-4561/65.4.543554
Spear, M.; Walker, J.C.F. 2006. Dimensional instability in timber. In: Walker, J.C.F. (Ed.). Primary Wood Processing: Principles and Practice. 2nd ed. Springer: Dordrecht, Netherlands, ISBN 978-1-4020-4392-5. pp. 95–130. https://doi.org/10.1007/1-4020-4393-7_4
Washusen, R.; Ilic, J. 2001. Relationship between transverse shrinkage and tension wood from three provenances of Eucalyptus globulus Labill. Holz als Roh- und Werkstoff 59(1-2): 85–93. https://doi.org/10.1007/s001070050480.
Wilkes, J. 1988. Variations in wood anatomy within species of Eucalyptus. IAWA Bulletin 9(1): 13–23. https://doi.org/10.1163/22941932-90001017
Wu, S.; Xu, J.; Li, G.; Risto, V.; Du, Z.; Lu, Z.; Li, B.; Wang, W. 2011. Genotypic variation in wood properties and growth traits of Eucalyptus hybrid clones in southern China. New Forests 42(1): 35–50. https://doi.org/10.1007/s11056-010-9235-7
Yang, J.L.; Ilic, Y.; Wardlaw, T. 2003. Relationships between static and dynamic modulus of elasticity for a mixture of clear and decayed Eucalyptus. Australian Forestry 66(3): 193–196. https://doi.org/10.1080/00049158.2003.10674911
Yang, L.; Zheng, J.; Huang, N. 2022. The characteristics of moisture and shrinkage of Eucalyptus urophylla × Eucalyptus urophylla grandis wood during conventional drying. Materials 15(9). e3386. https://doi.org/10.3390/ma15093386
Zanuncio, A.; Carvalho, A.; Carneiro, A.; Filho, M.; Valenzuela, P.; Gacitua, W.; Colodette, J. 2018. Anatomical, ultrastructural, physical and mechanical wood properties of two-year-old Eucalyptus grandis × Eucalyptus urophylla clones. Revista Árvore 42(2). e420201. https://doi.org/10.1590/1806-90882018000200001
Zanuncio, A.; Carvalho, A.; Silva, L.; Lima, J.; Trugilho, P.; Silva, J. 2015. Predicting moisture content from basic density and diameter during air drying of Eucalyptus and Corymbia logs. Maderas. Ciencia y Tecnología 17(2): 335–344. https://doi.org/10.4067/S0718-221X2015005000031
Zanuncio, A.J.V.; Monteiro, T.C.; Lima, J.T.; Andrade, H.B.; Carvalho, A.G. 2013. Drying biomass for energy use of Eucalyptus urophylla and Corymbia citriodora logs. BioResources 8(4): 5159–5168. https://doi.org/10.15376/biores.8.4.5159-5168
Zanuncio, A.J.V.; Carvalho, A.G.; De Camargo, M.B.; Milagres, F.R. 2020. Defoliation by insects reduces the wood quality and cellulosic pulp production. Holzforschung 74(5). 489–495. https://doi.org/10.1515/hf-2019-0134
Zhang, S.Y.; Ren, R.; Jiang, Z. 2021. Wood density and wood shrinkage in relation to initial spacing and tree growth in black spruce (Picea mariana). Journal of Wood Science 67(1). e30. https://doi.org/10.1186/s10086-021-01965-9
Zhang, S.Y.; Yu, Q.; Chauret, G.; Koubaa, A. 2003. Selection for both growth and wood properties in hybrid poplar clones. Forest Science 49(6): 901–908. https://doi.org/10.1093/forestscience/49.6.901
Zobel, B.J.; Jett, J.B. 1995. Genetics of Wood Production. Springer-Verlag: Berlin, Germany. ISBN 978-3-642-79516-9. 491 pp. https://doi.org/10.1007/978-3-642-79514-5
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