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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
27/08/2019 |
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Data da última atualização: |
03/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VIANA, L. C.; BOLZON DE MUÑIZ, G. I.; MAGALHAES, W. L. E.; ANDRADE, A. S. de; NIGOSKI, S.; POTULSKI, D. C. |
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Afiliação: |
Lívia Cássia Viana, UFT; Graciela Ines Bolzon de Muñiz, UFPR; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Alan Sulato de Andrade, UFPR; Silvana Nisgoski, UFPR; Daniele Cristina Potulski, UFPR. |
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Título: |
Nanostructured films produced from the bleached Pinus sp. kraft pulp. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Floresta e Ambiente, Seropédica, v. 26, n. 4, e20150191, July 2019. 10 p. |
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DOI: |
10.1590/2179-8087.019115 |
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Idioma: |
Inglês |
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Conteúdo: |
Este trabalho investiga as propriedades físicas e mecânicas de filmes nanoestruturados produzidos a partir da polpa kraft branqueada de Pinus sp. Para obter a nanocelulose, a polpa kraft branqueada foi submetida a seis diferentes intensidades de desfibrilação pelo moinho: dois, cinco, dez, 20, 30 e 40 passes. A influência do número de passes foi avaliada por meio das propriedades físicas e mecânicas dos filmes. Os resultados indicam que a presença de nanofibrilas reduziu a espessura e aumentou consideravelmente os valores de densidade dos filmes fabricados. Observou-se aumento da resistência à tração de 300% e o índice de ruptura foi dez vezes maior em relação aos papéis normais. A estrutura mais compacta e a menor porosidade causada pela maior superfície de contato entre as nanofibrilas nos filmes resultaram em maiores valores de densidade, resistência à tração e resistência à ruptura. |
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Palavras-Chave: |
Crystallinity index; Densidade; Grinder; Índice de cristalinidade; Moinho; Nanocellulose; Nanocelulose. |
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Thesagro: |
Propriedade Mecânica. |
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Thesaurus Nal: |
Density; Mechanical properties; Pinus. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/201328/1/2019-Washington-Floram-Nanostructured.pdf
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Marc: |
LEADER 01860naa a2200325 a 4500
001 2111655
005 2019-10-03
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1590/2179-8087.019115$2DOI
100 1 $aVIANA, L. C.
245 $aNanostructured films produced from the bleached Pinus sp. kraft pulp.$h[electronic resource]
260 $c2019
520 $aEste trabalho investiga as propriedades físicas e mecânicas de filmes nanoestruturados produzidos a partir da polpa kraft branqueada de Pinus sp. Para obter a nanocelulose, a polpa kraft branqueada foi submetida a seis diferentes intensidades de desfibrilação pelo moinho: dois, cinco, dez, 20, 30 e 40 passes. A influência do número de passes foi avaliada por meio das propriedades físicas e mecânicas dos filmes. Os resultados indicam que a presença de nanofibrilas reduziu a espessura e aumentou consideravelmente os valores de densidade dos filmes fabricados. Observou-se aumento da resistência à tração de 300% e o índice de ruptura foi dez vezes maior em relação aos papéis normais. A estrutura mais compacta e a menor porosidade causada pela maior superfície de contato entre as nanofibrilas nos filmes resultaram em maiores valores de densidade, resistência à tração e resistência à ruptura.
650 $aDensity
650 $aMechanical properties
650 $aPinus
650 $aPropriedade Mecânica
653 $aCrystallinity index
653 $aDensidade
653 $aGrinder
653 $aÍndice de cristalinidade
653 $aMoinho
653 $aNanocellulose
653 $aNanocelulose
700 1 $aBOLZON DE MUÑIZ, G. I.
700 1 $aMAGALHAES, W. L. E.
700 1 $aANDRADE, A. S. de
700 1 $aNIGOSKI, S.
700 1 $aPOTULSKI, D. C.
773 $tFloresta e Ambiente, Seropédica$gv. 26, n. 4, e20150191, July 2019. 10 p.
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Registro original: |
Embrapa Florestas (CNPF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agricultura Digital. Para informações adicionais entre em contato com cnptia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
08/09/2023 |
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Data da última atualização: |
08/09/2023 |
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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: |
SILVA, R. F. B. da; MILLINGTON, J. D. A.; VIÑA, A.; DOU, Y.; MORAN, E.; BATISTELLA, M.; LAPOLA, D. M.; LIU, J. |
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Afiliação: |
RAMON FELIPE BICUDO DA SILVA, MICHIGAN STATE UNIVERSITY; JAMES D. A. MILLINGTON, KING’S COLLEGE LONDON; ANDRÉS VIÑA, MICHIGAN STATE UNIVERSITY, UNIVERSITY OF NORTH CAROLINA; YUE DOU, UNIVERSITY OF TWENTE; EMILIO MORAN, UNIVERSIDADE ESTADUAL DE CAMPINAS, MICHIGAN STATE UNIVERSITY; MATEUS BATISTELLA, CNPTIA, UNIVERSIDADE ESTADUAL DE CAMPINAS; DAVID M. LAPOLA, MICHIGAN STATE UNIVERSITY; JIANGUO LIU, MICHIGAN STATE UNIVERSITY. |
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Título: |
Balancing food production with climate change mitigation and biodiversity conservation in the Brazilian Amazon. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Science of The Total Environment, v. 904, 166681, Dec. 2023. |
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ISSN: |
0048-9697 |
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DOI: |
https://doi.org/10.1016/j.scitotenv.2023.166681 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract. Climate change mitigation and biodiversity conservation are two major environmental actions that need to be effectively performed this century, alongside ensuring food supply for a growing global human population. These three issues are highly interlinked through land management systems. Thus, major global food production regions located in biodiversity hotpots and with potential for carbon sequestration face trade-offs between these valuable land-based ecosystem services. The state of Mato Grosso in Brazil is one such region, where private lands that have been illegally used for agriculture could be restored to natural vegetation - with potential benefits for climate change mitigation and biodiversity conservation, although with potentially negative effects on food production. To address this challenge, in this study we used a multicriteria nexus modeling approach that considers carbon stocks, priority areas for biodiversity conservation, and the opportunity for food production, to develop scenarios of land allocation that aim to balance the benefits and drawbacks of ecosystem restoration. Results show that forcing landowners to restore their individual lands compromises the potential for a "green land market" throughout the Amazon biome in which private landowners with lower food production capacities (e.g., less connected to markets and infrastructure) would benefit from restoration programs that compensate them for the inclusion of environmental restoration among their economic activities, instead of taking large economic risks to produce more food. We additionally highlight that strategic ecosystem restoration can achieve higher gains in biodiversity and carbon with lower costs of restoration actions and with minimal impacts on agriculture. Analyses like ours demonstrate how scenarios of land allocation that simultaneously address climate mitigation and biodiversity conservation through ecosystem restoration, while also minimizing possible impacts on food production, can be sought to move the world towards a sustainable future. MenosAbstract. Climate change mitigation and biodiversity conservation are two major environmental actions that need to be effectively performed this century, alongside ensuring food supply for a growing global human population. These three issues are highly interlinked through land management systems. Thus, major global food production regions located in biodiversity hotpots and with potential for carbon sequestration face trade-offs between these valuable land-based ecosystem services. The state of Mato Grosso in Brazil is one such region, where private lands that have been illegally used for agriculture could be restored to natural vegetation - with potential benefits for climate change mitigation and biodiversity conservation, although with potentially negative effects on food production. To address this challenge, in this study we used a multicriteria nexus modeling approach that considers carbon stocks, priority areas for biodiversity conservation, and the opportunity for food production, to develop scenarios of land allocation that aim to balance the benefits and drawbacks of ecosystem restoration. Results show that forcing landowners to restore their individual lands compromises the potential for a "green land market" throughout the Amazon biome in which private landowners with lower food production capacities (e.g., less connected to markets and infrastructure) would benefit from restoration programs that compensate them for the inclusion of environmental restoration amo... Mostrar Tudo |
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Palavras-Chave: |
Bioma Amazônia; Conservação da biodiversidade; Mitigação de mudanças climáticas; Sequestro de carbono. |
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Thesagro: |
Produção de Alimentos. |
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Thesaurus NAL: |
Biodiversity; Carbon sequestration; Climate change; Food production. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03133naa a2200337 a 4500
001 2156523
005 2023-09-08
008 2023 bl uuuu u00u1 u #d
022 $a0048-9697
024 7 $ahttps://doi.org/10.1016/j.scitotenv.2023.166681$2DOI
100 1 $aSILVA, R. F. B. da
245 $aBalancing food production with climate change mitigation and biodiversity conservation in the Brazilian Amazon.$h[electronic resource]
260 $c2023
520 $aAbstract. Climate change mitigation and biodiversity conservation are two major environmental actions that need to be effectively performed this century, alongside ensuring food supply for a growing global human population. These three issues are highly interlinked through land management systems. Thus, major global food production regions located in biodiversity hotpots and with potential for carbon sequestration face trade-offs between these valuable land-based ecosystem services. The state of Mato Grosso in Brazil is one such region, where private lands that have been illegally used for agriculture could be restored to natural vegetation - with potential benefits for climate change mitigation and biodiversity conservation, although with potentially negative effects on food production. To address this challenge, in this study we used a multicriteria nexus modeling approach that considers carbon stocks, priority areas for biodiversity conservation, and the opportunity for food production, to develop scenarios of land allocation that aim to balance the benefits and drawbacks of ecosystem restoration. Results show that forcing landowners to restore their individual lands compromises the potential for a "green land market" throughout the Amazon biome in which private landowners with lower food production capacities (e.g., less connected to markets and infrastructure) would benefit from restoration programs that compensate them for the inclusion of environmental restoration among their economic activities, instead of taking large economic risks to produce more food. We additionally highlight that strategic ecosystem restoration can achieve higher gains in biodiversity and carbon with lower costs of restoration actions and with minimal impacts on agriculture. Analyses like ours demonstrate how scenarios of land allocation that simultaneously address climate mitigation and biodiversity conservation through ecosystem restoration, while also minimizing possible impacts on food production, can be sought to move the world towards a sustainable future.
650 $aBiodiversity
650 $aCarbon sequestration
650 $aClimate change
650 $aFood production
650 $aProdução de Alimentos
653 $aBioma Amazônia
653 $aConservação da biodiversidade
653 $aMitigação de mudanças climáticas
653 $aSequestro de carbono
700 1 $aMILLINGTON, J. D. A.
700 1 $aVIÑA, A.
700 1 $aDOU, Y.
700 1 $aMORAN, E.
700 1 $aBATISTELLA, M.
700 1 $aLAPOLA, D. M.
700 1 $aLIU, J.
773 $tScience of The Total Environment$gv. 904, 166681, Dec. 2023.
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Embrapa Agricultura Digital (CNPTIA) |
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