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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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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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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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Embrapa Amazônia Oriental (CPATU) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
20/06/2014 |
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Data da última atualização: |
01/07/2014 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
AVOZANI, O. A.; MORAIS, O. P. de; COLOMBARI FILHO, J. M.; FAGUNDES, P. R. R.; FONSECA, G. de M. da; NEVES, G. |
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Afiliação: |
ONEIDES ANTONIO AVOZANI, IRGA; ORLANDO PEIXOTO DE MORAIS, CNPAF; JOSE MANOEL COLOMBARI FILHO, CNPAF; PAULO RICARDO REIS FAGUNDES, CPACT; GABRIELA DE MAGALHÃES DA FONSECA, IRGA; GILMAR NEVES, IRGA. |
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Título: |
Avaliação de famílias da população de seleção recorrente PIrga 2. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 8., 2013, Santa Maria. Avaliando cenários para a produção sustentável de arroz: anais. Santa Maria: UFSM; Porto Alegre: Sosbai, 2013. |
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Volume: |
v.1. |
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Páginas: |
p. 101-104. |
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Idioma: |
Português |
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Conteúdo: |
O objetivo desse trabalho foi avaliar famílias S0:2 quanto ao rendimento de grãos, reação à brusone e outras características agronômicas, selecionando as mais promissoras para formar o próximo ciclo de recombinação. |
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Thesagro: |
Arroz irrigado; Melhoramento genético vegetal; Oryza sativa; Seleção recorrente. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/103910/1/p101.pdf
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Marc: |
LEADER 01049nam a2200241 a 4500
001 1988674
005 2014-07-01
008 2013 bl uuuu u00u1 u #d
100 1 $aAVOZANI, O. A.
245 $aAvaliação de famílias da população de seleção recorrente PIrga 2.
260 $aIn: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 8., 2013, Santa Maria. Avaliando cenários para a produção sustentável de arroz: anais. Santa Maria: UFSM; Porto Alegre: Sosbai$c2013
300 $ap. 101-104. v.1.
490 $vv.1.
520 $aO objetivo desse trabalho foi avaliar famílias S0:2 quanto ao rendimento de grãos, reação à brusone e outras características agronômicas, selecionando as mais promissoras para formar o próximo ciclo de recombinação.
650 $aArroz irrigado
650 $aMelhoramento genético vegetal
650 $aOryza sativa
650 $aSeleção recorrente
700 1 $aMORAIS, O. P. de
700 1 $aCOLOMBARI FILHO, J. M.
700 1 $aFAGUNDES, P. R. R.
700 1 $aFONSECA, G. de M. da
700 1 $aNEVES, G.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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