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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
29/11/2023 |
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Data da última atualização: |
29/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
REATEGUI-BETANCOURT, J. L.; FREITAS, L. J. M. de; SANTOS, K. R. B.; BRICEÑO, G.; MATRICARDI, E. A. T.; RUSCHEL, A. R.; FERREIRA, N. C. de F. |
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Afiliação: |
JORGE LUIS REATEGUI-BETANCOURT, UNIVERSIDADE DE BRASÍLIA; LUCAS JOSE MAZZEI DE FREITAS, CPATU; KENIA RIBEIRO BRITO SANTOS, UNIVERSIDADE DE BRASÍLIA; GUIDO BRICEÑO, UNIVERSIDADE DE BRASÍLIA; ERALDO APARECIDO TRONDOLI MATRICARDI, UNIVERSIDADE DE BRASÍLIA; ADEMIR ROBERTO RUSCHEL, CPATU; NATÁLIA CÁSSIA DE FARIA FERREIRA, UNIVERSIDADE DE BRASÍLIA. |
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Título: |
Timber yield of commercial tree species in the eastern Brazilian Amazon based on 33 years of inventory data. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Forestry: An International Journal of Forest Research, p. 1-10, 2023. cpad043. |
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DOI: |
https://doi.org/10.1093/forestry/cpad043 |
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Idioma: |
Inglês |
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Conteúdo: |
Selective logging in neotropical forests has directly affected the dynamics of tree species, compromising species conservation and timber yield. Sustainable use of logged forests requires new tree recruitment and diameter growth in remaining trees to compensate for trees removed between cutting cycles. This long-term study investigated timber yields in four species groups with differing values (lower, intermediate, high, and mixed) in logged and unlogged forests in the plateau region of the Tapajós River in the eastern Brazilian Amazon. Analysis was based on two size classes: medium and large commercial-sized trees. In both forest types (logged and unlogged), we found relevant tree recruitment and changes in size classes for all value groups. Most of the recruited trees observed during the 33 years of monitoring remained in the medium size class, but they also occurred in the large size class in logged forests. Over the same period, a significant loss of timber yield was seen, resulting from high mortality among the remaining trees in both size classes due to natural processes and the aftereffects of logging. Timber yield was also seen to be influenced by species richness within the group of commercial species, and recruitment and tree diameter growth capacity to counterbalance losses from mortality of the remaining trees after logging had become restricted. Forest timber yield was mainly regulated by light-demanding species, and shade-tolerant species contributed little to timber yield during the first cut. Continuous monitoring of the remaining trees and measures to reduce tree mortality during cutting cycles can encourage growth and reduce losses in stocked trees. Additionally, the national rules for forest management in the Brazilian Amazon need to be improved to achieve long-term management sustainability. MenosSelective logging in neotropical forests has directly affected the dynamics of tree species, compromising species conservation and timber yield. Sustainable use of logged forests requires new tree recruitment and diameter growth in remaining trees to compensate for trees removed between cutting cycles. This long-term study investigated timber yields in four species groups with differing values (lower, intermediate, high, and mixed) in logged and unlogged forests in the plateau region of the Tapajós River in the eastern Brazilian Amazon. Analysis was based on two size classes: medium and large commercial-sized trees. In both forest types (logged and unlogged), we found relevant tree recruitment and changes in size classes for all value groups. Most of the recruited trees observed during the 33 years of monitoring remained in the medium size class, but they also occurred in the large size class in logged forests. Over the same period, a significant loss of timber yield was seen, resulting from high mortality among the remaining trees in both size classes due to natural processes and the aftereffects of logging. Timber yield was also seen to be influenced by species richness within the group of commercial species, and recruitment and tree diameter growth capacity to counterbalance losses from mortality of the remaining trees after logging had become restricted. Forest timber yield was mainly regulated by light-demanding species, and shade-tolerant species contributed little to ... Mostrar Tudo |
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Palavras-Chave: |
Ree dynamics; Selective logging; Timber volume. |
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Thesagro: |
Floresta Tropical; Madeira. |
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Thesaurus NAL: |
Forest management; Tropical forests. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02774naa a2200289 a 4500
001 2158882
005 2023-11-29
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1093/forestry/cpad043$2DOI
100 1 $aREATEGUI-BETANCOURT, J. L.
245 $aTimber yield of commercial tree species in the eastern Brazilian Amazon based on 33 years of inventory data.$h[electronic resource]
260 $c2023
520 $aSelective logging in neotropical forests has directly affected the dynamics of tree species, compromising species conservation and timber yield. Sustainable use of logged forests requires new tree recruitment and diameter growth in remaining trees to compensate for trees removed between cutting cycles. This long-term study investigated timber yields in four species groups with differing values (lower, intermediate, high, and mixed) in logged and unlogged forests in the plateau region of the Tapajós River in the eastern Brazilian Amazon. Analysis was based on two size classes: medium and large commercial-sized trees. In both forest types (logged and unlogged), we found relevant tree recruitment and changes in size classes for all value groups. Most of the recruited trees observed during the 33 years of monitoring remained in the medium size class, but they also occurred in the large size class in logged forests. Over the same period, a significant loss of timber yield was seen, resulting from high mortality among the remaining trees in both size classes due to natural processes and the aftereffects of logging. Timber yield was also seen to be influenced by species richness within the group of commercial species, and recruitment and tree diameter growth capacity to counterbalance losses from mortality of the remaining trees after logging had become restricted. Forest timber yield was mainly regulated by light-demanding species, and shade-tolerant species contributed little to timber yield during the first cut. Continuous monitoring of the remaining trees and measures to reduce tree mortality during cutting cycles can encourage growth and reduce losses in stocked trees. Additionally, the national rules for forest management in the Brazilian Amazon need to be improved to achieve long-term management sustainability.
650 $aForest management
650 $aTropical forests
650 $aFloresta Tropical
650 $aMadeira
653 $aRee dynamics
653 $aSelective logging
653 $aTimber volume
700 1 $aFREITAS, L. J. M. de
700 1 $aSANTOS, K. R. B.
700 1 $aBRICEÑO, G.
700 1 $aMATRICARDI, E. A. T.
700 1 $aRUSCHEL, A. R.
700 1 $aFERREIRA, N. C. de F.
773 $tForestry: An International Journal of Forest Research, p. 1-10, 2023. cpad043.
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