Produção de biomassa no corte raso em plantio de Araucaria angustifolia (Bertol.) Kuntze de 27 anos de idade em quedas do Iguaçu, PR
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Data
2011-03
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Resumo
This study, conducted in a 27-year-old Araucaria angustifolia stand in the municipality of Quedas do
Iguaçu (PR) county, aimed to estimate tree components, understory and accumulated litter biomasses.
Biomass was estimated through regression equation adjustments, with 21 trees felled, distributed among 7
diametric classes, and with litter and understory based on known sample unit areas. Total stand biomass was
241.92 Mg ha -1 , with 82.2% composed of Araucaria angustifolia, 9.6% composed of understory and 8.2%
composed by litter. Considering only Araucaria angustifolia, the biomass was of 198.62 Mg ha -1 , composed
of wood (51.5%), bark (14.7%), roots (13.0%), lives branches (11.8%), aciculated branches (6.6%) and
dead branches (0.5%). Relative biomass production for the wood component may be low, when compared
to other forest species, mainly due to the high allocation in the bark component.
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Sustentabilidade, Sub-bosque, Serapilheira, Colheita florestal, Sustainability, Forest harvesting, Understory, Litter
Citação
SCHUMACHER, Mauro Valdir; WITSCHORECK, Rudi; CALIL, Francine Neves; LOPES, Vicente Guilherme; VIERA, Márcio. Produção de biomassa no corte raso em plantio de Araucaria angustifolia (Bertol.) Kuntze de 27 anos de idade em quedas do Iguaçu, PR. Ciência Florestal, Santa Maria, v. 21, n. 1, p. 53-62, jan./mar. 2011.