|
|
Registro Completo |
Biblioteca(s): |
Embrapa Solos; Embrapa Solos / UEP-Recife. |
Data corrente: |
04/03/2016 |
Data da última atualização: |
31/03/2023 |
Tipo da produção científica: |
Documentos |
Autoria: |
DELAIA, C. R.; SILVA, A. L. A. F. da; ARAUJO, L. S. de. |
Afiliação: |
CLAUDIA REGINA DELAIA MACHADO, CNPS; ALEXIA LARISSA ALBA FERREIRA DA SILVA, ESTAGIÁRIA CNPS; LUCIANA SAMPAIO DE ARAUJO, CNPS. |
Título: |
Disseminação seletiva da informação em fertilidade do solo e fertilizantes (@DSI): um modelo conceitual. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Rio de Janeiro: Embrapa Solos, 2015. |
Páginas: |
30 p. |
Série: |
(Embrapa Solos. Documentos, 175). |
ISSN: |
1517-2627 |
Idioma: |
Português |
Conteúdo: |
O objetivo deste trabalho foi desenvolver um modelo conceitual para um serviço de Disseminação Seletiva da Informação (DSI) utilizando ferramentas disponíveis em bases de dados do Portal de Periódicos Capes, que, após a implantação do mesmo no âmbito de uma rede de pesquisadores atuantes em Fertilidade do Solo e Fertilizantes, denominada Rede FertBrasil, poderá ser aperfeiçoado, caso seja necessário, em etapas posteriores. |
Thesagro: |
Disseminação seletiva da informação; Serviço de informação. |
Thesaurus Nal: |
Information dissemination; Information services. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/148846/1/DOC-175-Disseminacao-Seletiva-Informacao.pdf
|
Marc: |
LEADER 01154nam a2200217 a 4500 001 2039631 005 2023-03-31 008 2015 bl uuuu u0uu1 u #d 022 $a1517-2627 100 1 $aDELAIA, C. R. 245 $aDisseminação seletiva da informação em fertilidade do solo e fertilizantes (@DSI)$bum modelo conceitual.$h[electronic resource] 260 $aRio de Janeiro: Embrapa Solos$c2015 300 $a30 p. 490 $a(Embrapa Solos. Documentos, 175). 520 $aO objetivo deste trabalho foi desenvolver um modelo conceitual para um serviço de Disseminação Seletiva da Informação (DSI) utilizando ferramentas disponíveis em bases de dados do Portal de Periódicos Capes, que, após a implantação do mesmo no âmbito de uma rede de pesquisadores atuantes em Fertilidade do Solo e Fertilizantes, denominada Rede FertBrasil, poderá ser aperfeiçoado, caso seja necessário, em etapas posteriores. 650 $aInformation dissemination 650 $aInformation services 650 $aDisseminação seletiva da informação 650 $aServiço de informação 700 1 $aSILVA, A. L. A. F. da 700 1 $aARAUJO, L. S. de
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Solos (CNPS) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Roraima. |
Data corrente: |
17/11/2020 |
Data da última atualização: |
17/11/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SILVA, C. V. J.; ARAGÃO, L. E. O. C.; YOUNG, P. J.; ESPIRITO-SANTO, F.; BERENGUER, E.; ANDERSON, L. O.; BRASIL, I.; PONTES-LOPES, A.; FERREIRA, J. N.; WITHEY, K.; FRANÇA, F.; GRAÇA, P. M. L. A.; KIRSTEN, L.; XAUD, H. A. M.; SALIMON, C.; SCARANELLO, M. A.; CASTRO, B.; SEIXAS, M.; FARIAS, R.; BARLOW, J. |
Afiliação: |
Camila V. J. Silva, Lancaster University; Luiz E. O. C. Aragão, INPE / University of Exeter; Paul J. Young, Lancaster University; Fernando Espirito-Santo, University of Leicester; Erika Berenguer, Lancaster University / University of Oxford; Liana O. Anderson, CEMADEN; Izaias Brasil, UEMA; Aline Pontes-Lopes, INPE; JOICE NUNES FERREIRA, CPATU; Kieran Withey, Lancaster University; Filipe França, Lancaster University; Paulo M. L. A. Graça, INPA; Leticia Kirsten, INPA; HARON ABRAHIM MAGALHAES XAUD, CPAF-RR; Cleber Salimon, Universidade Estadual da Paraíba; Marcos A. Scaranello, COLABORADOR CNPTIA; Bruno Castro, IMAFLORA; Marina Seixas, COLABORADORA CPATU; Renato Farias, Instituto Centro de Vida; Jos Barlow, Lancaster University / UFLA. |
Título: |
Estimating the multi-decadal carbon deficit of burned Amazonian forests. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Environmental Research Letters, v. 15, Article 114023, 2020. |
DOI: |
https://doi.org/10.1088/1748-9326/abb62c |
Idioma: |
Inglês |
Conteúdo: |
Wildfires in humid tropical forests have become more common in recent years, increasing the rates of tree mortality in forests that have not co-evolved with fire. Estimating carbon emissions from these wildfires is complex. Current approaches rely on estimates of committed emissions based on static emission factors through time and space, yet these emissions cannot be assigned to specific years, and thus are not comparable with other temporally-explicit emission sources. Moreover, committed emissions are gross estimates, whereas the long-term consequences of wildfires require an understanding of net emissions that accounts for post-fire uptake of CO2. Here, using a 30 year wildfire chronosequence from across the Brazilian Amazon, we calculate net CO2 emissions from Amazon wildfires by developing statistical models comparing post-fire changes in stem mortality, necromass decomposition and vegetation growth with unburned forest plots sampled at the same time. Over the 30 yr time period, gross emissions from combustion during the fire and subsequent tree mortality and decomposition were equivalent to 126.1 Mg CO2 ha−1 of which 73% (92.4 Mg CO2 ha−1) resulted from mortality and decomposition. These emissions were only partially offset by forest growth, with an estimated CO2 uptake of 45.0 Mg ha−1over the same time period. Our analysis allowed us to assign emissions and growth across years, revealing that net annual emissions peak 4 yr after forest fires. At present, Brazil's National Determined Contribution (NDC) for emissions fails to consider forest fires as a significant source, even though these are likely to make a substantial and long-term impact on the net carbon balance of Amazonia. Considering long-term post-fire necromass decomposition and vegetation regrowth is crucial for improving global carbon budget estimates and national greenhouse gases (GHG) inventories for tropical forest countries. MenosWildfires in humid tropical forests have become more common in recent years, increasing the rates of tree mortality in forests that have not co-evolved with fire. Estimating carbon emissions from these wildfires is complex. Current approaches rely on estimates of committed emissions based on static emission factors through time and space, yet these emissions cannot be assigned to specific years, and thus are not comparable with other temporally-explicit emission sources. Moreover, committed emissions are gross estimates, whereas the long-term consequences of wildfires require an understanding of net emissions that accounts for post-fire uptake of CO2. Here, using a 30 year wildfire chronosequence from across the Brazilian Amazon, we calculate net CO2 emissions from Amazon wildfires by developing statistical models comparing post-fire changes in stem mortality, necromass decomposition and vegetation growth with unburned forest plots sampled at the same time. Over the 30 yr time period, gross emissions from combustion during the fire and subsequent tree mortality and decomposition were equivalent to 126.1 Mg CO2 ha−1 of which 73% (92.4 Mg CO2 ha−1) resulted from mortality and decomposition. These emissions were only partially offset by forest growth, with an estimated CO2 uptake of 45.0 Mg ha−1over the same time period. Our analysis allowed us to assign emissions and growth across years, revealing that net annual emissions peak 4 yr after forest fires. At pre... Mostrar Tudo |
Thesagro: |
Absorção; Caule; Combustão; Floresta Tropical; Incêndio Florestal; Mortalidade. |
Thesaurus NAL: |
Combustion; Tropical forests; Wildfires. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/217856/1/Silva-2020-Environ.-Res.-Lett.-15-114023.pdf
|
Marc: |
LEADER 03226naa a2200469 a 4500 001 2126660 005 2020-11-17 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1088/1748-9326/abb62c$2DOI 100 1 $aSILVA, C. V. J. 245 $aEstimating the multi-decadal carbon deficit of burned Amazonian forests.$h[electronic resource] 260 $c2020 520 $aWildfires in humid tropical forests have become more common in recent years, increasing the rates of tree mortality in forests that have not co-evolved with fire. Estimating carbon emissions from these wildfires is complex. Current approaches rely on estimates of committed emissions based on static emission factors through time and space, yet these emissions cannot be assigned to specific years, and thus are not comparable with other temporally-explicit emission sources. Moreover, committed emissions are gross estimates, whereas the long-term consequences of wildfires require an understanding of net emissions that accounts for post-fire uptake of CO2. Here, using a 30 year wildfire chronosequence from across the Brazilian Amazon, we calculate net CO2 emissions from Amazon wildfires by developing statistical models comparing post-fire changes in stem mortality, necromass decomposition and vegetation growth with unburned forest plots sampled at the same time. Over the 30 yr time period, gross emissions from combustion during the fire and subsequent tree mortality and decomposition were equivalent to 126.1 Mg CO2 ha−1 of which 73% (92.4 Mg CO2 ha−1) resulted from mortality and decomposition. These emissions were only partially offset by forest growth, with an estimated CO2 uptake of 45.0 Mg ha−1over the same time period. Our analysis allowed us to assign emissions and growth across years, revealing that net annual emissions peak 4 yr after forest fires. At present, Brazil's National Determined Contribution (NDC) for emissions fails to consider forest fires as a significant source, even though these are likely to make a substantial and long-term impact on the net carbon balance of Amazonia. Considering long-term post-fire necromass decomposition and vegetation regrowth is crucial for improving global carbon budget estimates and national greenhouse gases (GHG) inventories for tropical forest countries. 650 $aCombustion 650 $aTropical forests 650 $aWildfires 650 $aAbsorção 650 $aCaule 650 $aCombustão 650 $aFloresta Tropical 650 $aIncêndio Florestal 650 $aMortalidade 700 1 $aARAGÃO, L. E. O. C. 700 1 $aYOUNG, P. J. 700 1 $aESPIRITO-SANTO, F. 700 1 $aBERENGUER, E. 700 1 $aANDERSON, L. O. 700 1 $aBRASIL, I. 700 1 $aPONTES-LOPES, A. 700 1 $aFERREIRA, J. N. 700 1 $aWITHEY, K. 700 1 $aFRANÇA, F. 700 1 $aGRAÇA, P. M. L. A. 700 1 $aKIRSTEN, L. 700 1 $aXAUD, H. A. M. 700 1 $aSALIMON, C. 700 1 $aSCARANELLO, M. A. 700 1 $aCASTRO, B. 700 1 $aSEIXAS, M. 700 1 $aFARIAS, R. 700 1 $aBARLOW, J. 773 $tEnvironmental Research Letters$gv. 15, Article 114023, 2020.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|