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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
04/07/2013 |
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Data da última atualização: |
05/07/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BOLZÓN DE MUÑIZ, G. I; CARNEIRO, M. E.; NISGOSKI, S.; RAMIREZ, M. G. L.; MAGALHAES, W. L. E. |
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Afiliação: |
GRACIELA INÊS BOLZÓN DE MUÑIZ, UFPR; MAYARA ELITA CARNEIRO, UFPR; SILVANA NISGOSKI, UFPR;, UFPR; MARÍA GUADALUPE LOMELI RAMIREZ, UNIVERSIDAD DE GUADALAJARA; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF. |
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Título: |
SEM and NIR characterization of four forest species charcoal. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Wood Science and Technology, v. 47, p. 815-823, 2013. |
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DOI: |
DOI 10.1007/s00226-013-0539-6 |
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Idioma: |
Inglês |
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Conteúdo: |
This paper characterizes wood and charcoal made from Hymenaea au- rea, Mimosa scabrella, Tabebuia capitata and Eucalyptus alba by scanning electron microscopy and near infrared for the purpose of developing a technique to identify the source of charcoal samples. Ten test samples were prepared for each species, oriented in transverse, radial and tangential section. Samples were carbonized in a muffle furnace with a final temperature of 450 °C and a heating rate of 1.66 °C/min. The microscopic structures of the wood and charcoal samples were verified by scanning electron microscopy, and spectra were obtained with a spectrophotometer, equipped with an integrating sphere and operating in transmittance mode. The spectra of the wood samples present characteristic bands of lignocellulosic material, while the spectra of the charcoal samples show small or nil absorption in the near- infrared region. The near-infrared spectroscopy technique was efficient in dis- criminating the four species studied. |
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Palavras-Chave: |
Espécie florestal; NIR; SEM. |
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Thesagro: |
Carvão Vegetal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01666naa a2200229 a 4500
001 1961404
005 2013-07-05
008 2013 bl uuuu u00u1 u #d
024 7 $aDOI 10.1007/s00226-013-0539-6$2DOI
100 1 $aBOLZÓN DE MUÑIZ, G. I
245 $aSEM and NIR characterization of four forest species charcoal.$h[electronic resource]
260 $c2013
520 $aThis paper characterizes wood and charcoal made from Hymenaea au- rea, Mimosa scabrella, Tabebuia capitata and Eucalyptus alba by scanning electron microscopy and near infrared for the purpose of developing a technique to identify the source of charcoal samples. Ten test samples were prepared for each species, oriented in transverse, radial and tangential section. Samples were carbonized in a muffle furnace with a final temperature of 450 °C and a heating rate of 1.66 °C/min. The microscopic structures of the wood and charcoal samples were verified by scanning electron microscopy, and spectra were obtained with a spectrophotometer, equipped with an integrating sphere and operating in transmittance mode. The spectra of the wood samples present characteristic bands of lignocellulosic material, while the spectra of the charcoal samples show small or nil absorption in the near- infrared region. The near-infrared spectroscopy technique was efficient in dis- criminating the four species studied.
650 $aCarvão Vegetal
653 $aEspécie florestal
653 $aNIR
653 $aSEM
700 1 $aCARNEIRO, M. E.
700 1 $aNISGOSKI, S.
700 1 $aRAMIREZ, M. G. L.
700 1 $aMAGALHAES, W. L. E.
773 $tWood Science and Technology$gv. 47, p. 815-823, 2013.
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Registro original: |
Embrapa Florestas (CNPF) |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental. |
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Data corrente: |
22/08/2006 |
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Data da última atualização: |
21/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
PHILLIPS, P. D.; AZEVEDO, C. P. de; DEGEN, B.; THOMPSON, I. S.; SILVA, J. N. M.; GARDINGEN, P. R. van. |
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Afiliação: |
CELSO PAULO DE AZEVEDO, CPAA; JOSÉ NATALINO MACEDO SILVA, CPATU. |
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Título: |
An individual-based spatially explicit simulation model for strategic forest management planning in the eastern Amazon. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Ecological Modelling, v. 173, n. 4, p. 335-354, 2004. |
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Descrição Física: |
il. |
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DOI: |
http://dx.doi.org/10.1016/j.ecolmodel.2003.09.023 |
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Idioma: |
Inglês |
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Conteúdo: |
A model to simulate the ecological processes of tree growth, mortality and recruitment, and the processes of forest management, in the terra firme forests of the eastern Amazon is described. It is implemented within the SYMFOR (http://www.symfor.org) framework. It is based on measurements of all trees that have a diameter greater than 5 cm from experimental plots in the Jar?? Cellulose and Tapajós National Forest areas over a 16-year period. Ten species groups are used to describe the natural processes affecting tree behaviour. Growth rates are calculated for each species group using the tree diameter and a competition index. Mortality and recruitment are simulated as stochastic processes. Recruitment probability is based on the predicted growth rate of a hypothetical tree. Options exist to vary the human interaction with the forest reflecting forest management decisions, as for other SYMFOR models. Model evaluation compares the performance of the model with data describing forest recovery for 16 years following logging. The model was applied to simulate current forest management practice in the Brazilian Amazon, with 40 m3 ha?1 of timber extracted with a cutting cycle of 30 years. Results show that yields are sustained for three harvests following the first logging of primary forest, but that the composition of timber moves towards lightwooded species rather than hardwooded. The predicted size of extracted trees decreases and the number of trees extracted increases with successive harvests, leading to a prediction of increased costs and lower profits for the logging company despite constant yields. The standing volume of all trees just before harvest is reduced by 15% over 150 years, with pioneer species becoming increasingly prevalent in the stand. The model, in the SYMFOR framework, can be used to help understand the differences between alternative forest management strategies in the Brazilian Amazon. Such knowledge is required to improve forest management, regulation and certification, and help to conserve the worlds largest remaining tropical forest. MenosA model to simulate the ecological processes of tree growth, mortality and recruitment, and the processes of forest management, in the terra firme forests of the eastern Amazon is described. It is implemented within the SYMFOR (http://www.symfor.org) framework. It is based on measurements of all trees that have a diameter greater than 5 cm from experimental plots in the Jar?? Cellulose and Tapajós National Forest areas over a 16-year period. Ten species groups are used to describe the natural processes affecting tree behaviour. Growth rates are calculated for each species group using the tree diameter and a competition index. Mortality and recruitment are simulated as stochastic processes. Recruitment probability is based on the predicted growth rate of a hypothetical tree. Options exist to vary the human interaction with the forest reflecting forest management decisions, as for other SYMFOR models. Model evaluation compares the performance of the model with data describing forest recovery for 16 years following logging. The model was applied to simulate current forest management practice in the Brazilian Amazon, with 40 m3 ha?1 of timber extracted with a cutting cycle of 30 years. Results show that yields are sustained for three harvests following the first logging of primary forest, but that the composition of timber moves towards lightwooded species rather than hardwooded. The predicted size of extracted trees decreases and the number of trees extracted increases with suc... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Certificação. |
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Thesagro: |
Árvore; Competição de Variedade; Floresta Tropical; Manejo. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
--
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02968naa a2200289 a 4500
001 2092683
005 2018-06-21
008 2004 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.ecolmodel.2003.09.023$2DOI
100 1 $aPHILLIPS, P. D.
245 $aAn individual-based spatially explicit simulation model for strategic forest management planning in the eastern Amazon.$h[electronic resource]
260 $c2004
300 $cil.
520 $aA model to simulate the ecological processes of tree growth, mortality and recruitment, and the processes of forest management, in the terra firme forests of the eastern Amazon is described. It is implemented within the SYMFOR (http://www.symfor.org) framework. It is based on measurements of all trees that have a diameter greater than 5 cm from experimental plots in the Jar?? Cellulose and Tapajós National Forest areas over a 16-year period. Ten species groups are used to describe the natural processes affecting tree behaviour. Growth rates are calculated for each species group using the tree diameter and a competition index. Mortality and recruitment are simulated as stochastic processes. Recruitment probability is based on the predicted growth rate of a hypothetical tree. Options exist to vary the human interaction with the forest reflecting forest management decisions, as for other SYMFOR models. Model evaluation compares the performance of the model with data describing forest recovery for 16 years following logging. The model was applied to simulate current forest management practice in the Brazilian Amazon, with 40 m3 ha?1 of timber extracted with a cutting cycle of 30 years. Results show that yields are sustained for three harvests following the first logging of primary forest, but that the composition of timber moves towards lightwooded species rather than hardwooded. The predicted size of extracted trees decreases and the number of trees extracted increases with successive harvests, leading to a prediction of increased costs and lower profits for the logging company despite constant yields. The standing volume of all trees just before harvest is reduced by 15% over 150 years, with pioneer species becoming increasingly prevalent in the stand. The model, in the SYMFOR framework, can be used to help understand the differences between alternative forest management strategies in the Brazilian Amazon. Such knowledge is required to improve forest management, regulation and certification, and help to conserve the worlds largest remaining tropical forest.
650 $aAmazonia
650 $aÁrvore
650 $aCompetição de Variedade
650 $aFloresta Tropical
650 $aManejo
653 $aBrasil
653 $aCertificação
700 1 $aAZEVEDO, C. P. de
700 1 $aDEGEN, B.
700 1 $aTHOMPSON, I. S.
700 1 $aSILVA, J. N. M.
700 1 $aGARDINGEN, P. R. van.
773 $tEcological Modelling$gv. 173, n. 4, p. 335-354, 2004.
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Embrapa Amazônia Ocidental (CPAA) |
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