Abstract
Jari Celulose S. A. is a Brazilian-owned industrial enterprise located along the Jari River (the first major south-flowing tributary of the Amazon). The company produces bleached kraft pulp for international and domestic sales. The raw material of this pulp production comes from the 75,000 ha of intensively managed plantations of Pinus caribaea (Morelet) and Eucalyptus spp. harvested on 10- and 6-year rotations, respectively. All currently active Jari plantations were converted from primary forest between 1968 and 1982. Silvicultural practices have been modified over successive rotations, including plantation species changes, increased intensity of site preparation, fertilization, and chemical weed control. A review of data from the early 1970s to present indicates an increase in productivity over successive rotations and several plantation locations and soil types. The reasons for this improvement are primarily related to the higher levels of silvicultural inputs and dramatic genetic gains. The long-term sustainability of this productivity is discussed in terms of current and future inputs.
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© 1999 Springer Science+Business Media Dordrecht
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McNabb, K.L., Wadouski, L.H. (1999). Multiple rotation yields for intensively managed plantations in the Amazon basin. In: Boyle, J.R., Winjum, J.K., Kavanagh, K., Jensen, E.C. (eds) Planted Forests: Contributions to the Quest for Sustainable Societies. Forestry Sciences, vol 56. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-2689-4_23
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DOI: https://doi.org/10.1007/978-94-017-2689-4_23
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