Variability in The Chemical Composition of Plantation Eucalypts (<i>Eucalyptus Globulus</i> Labill.)
Keywords:
Eucalyptus globulus Labill, chemical composition, variability, site, biomass componentsAbstract
The chemical composition was determined for plantation-grown Eucalyptus globulus Labill., at time of harvest for pulpwood, with age 11-14 years, in four different locations and for the biomass components bolewood. bolebark, tops, and branches.
Chemical composition showed variation between trees and between geographical location, and variability was significantly larger for cellulose content. Average wood composition was: ash 0.4%, total extractives 4.9%, insoluble lignin 19.5%, soluble lignin 3.6%, cellulose 54.0%, pentosans 18.9% (% of o.d. weight). Wood carbohydrate composition was determined for one site; glucose with 49.4% and xylose with 19.1% are the main monosaccharides. Within the tree, biomass components also showed different chemical compositions, especially in ash, extractives, and cellulose contents and in 1% NaOH solubility.
References
Bland, D. E. 1985. The composition and analysis of eucalypt woods. Appita 38(4):291-294.nBlankenhorn, P. R., T. W. Bowersox, K. M. Kuklewski, and G. L. Stimley. 1985a. Comparison of selected fuel and chemical content values for seven Populus hybrid clones. Wood Fiber Sci. 17(2):148-158.nBlankenhorn, P. R., T. W. Bowersox, K. M. Kuklewski, and G. L. Stimley. 1985b. Effects of rotation, site and clone on the chemical composition of Populus hybrids. Wood Fiber Sci. 17(3):351-360.nCarvalho, P. C. O. 1984. Biomassa e características fisicas em Eucalyptus globulus Labill. Contribuiçâo para o seu estudo. Relatório de estágio. Instituto Superior de Agronomia. Lisboa.nCoucelo, F. C. 1980. Dois estudos biométricos para o eucaliptal na estação ecológica AMxSM. Relatório de estágio. Instituto Superior de Agronomia. Lisboa.nDillner, B., A. Ljunger, O. A. Herud, and E. Thune-Larsen. 1970. The breeding of Eucalyptus globulus on the basis of wood density, chemical composition and growth rate. Symposium on the production and industrial utilization of Eucalyptus. 29.6-3.7.1970, Lisbon, Portugal.nHillis, W. E. 1972. Properties of eucalypt woods of importance to the pulp and paper industry. Appita 26(2):113-122.nMatheson, A. G., C. H. Turner, and G. H. Dean. 1986. Genetic variation in the pulp qualities of Eucalyptus obliqua l'Herit. Appita 39(3):205-212.nPereira, H., and R. Sardinha. 1984a. Utilization of Eucalyptus globulus Lab. for energy and fiber. Biomass production and nutrient removal assessment. Pages 119-126 in H. Egneus and A. Ellegard, eds. Bioenergy 84. Vol. II. Biomass Resources, Elsevier Applied Sci. Publ., London.nPereira, H., and R. Sardinha. 1984b. Chemical composition of Eucalyptus globulus Lab. Appita 37(8):661-664.nTurner, C. H., V. Balodis, and G. H. Dean. 1983. Variability in pulping quality of E. globulus from Tasmanian provenances. Appita 36(5):371-376.nZobel, B. J., and J. Talbert. 1984. Applied forest tree improvement. Wiley and Sons, New York.n
Downloads
Published
Issue
Section
License
The copyright of an article published in Wood and Fiber Science is transferred to the Society of Wood Science and Technology (for U. S. Government employees: to the extent transferable), effective if and when the article is accepted for publication. This transfer grants the Society of Wood Science and Technology permission to republish all or any part of the article in any form, e.g., reprints for sale, microfiche, proceedings, etc. However, the authors reserve the following as set forth in the Copyright Law:
1. All proprietary rights other than copyright, such as patent rights.
2. The right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. In the case of whole articles, such third parties must obtain Society of Wood Science and Technology written permission as well. However, the Society may grant rights with respect to Journal issues as a whole.
3. The right to use all or part of this article in future works of their own, such as lectures, press releases, reviews, text books, or reprint books.
