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Registro Completo |
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
06/12/1995 |
Data da última atualização: |
11/12/2007 |
Autoria: |
ALBERTIN, A. L.; MOURA, R. M. de. |
Título: |
Administracao de informatica e seus fatores criticos de sucesso no setor bancario privado nacional. |
Ano de publicação: |
1995 |
Fonte/Imprenta: |
Revista de Administracao de Empresa, Sao Paulo, v.35, n.5, p.22-29, set./out.1995. |
Idioma: |
Português |
Conteúdo: |
O sucesso da administracao de informatica e da propria organizacao sao dependentes da identificacao e do tratamento de fatores criticos de sucesso. |
Palavras-Chave: |
Administracao bancaria; Banco; Banco privado; Bank sector; Competitive strategy; Estrategia competitiva; Private banks. |
Thesagro: |
Informática; Sistema de Informação; Tecnologia da Informação. |
Thesaurus Nal: |
information systems; information technology. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00998naa a2200277 a 4500 001 1084417 005 2007-12-11 008 1995 bl uuuu u00u1 u #d 100 1 $aALBERTIN, A. L. 245 $aAdministracao de informatica e seus fatores criticos de sucesso no setor bancario privado nacional. 260 $c1995 520 $aO sucesso da administracao de informatica e da propria organizacao sao dependentes da identificacao e do tratamento de fatores criticos de sucesso. 650 $ainformation systems 650 $ainformation technology 650 $aInformática 650 $aSistema de Informação 650 $aTecnologia da Informação 653 $aAdministracao bancaria 653 $aBanco 653 $aBanco privado 653 $aBank sector 653 $aCompetitive strategy 653 $aEstrategia competitiva 653 $aPrivate banks 700 1 $aMOURA, R. M. de 773 $tRevista de Administracao de Empresa, Sao Paulo$gv.35, n.5, p.22-29, set./out.1995.
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Embrapa Unidades Centrais (AI-SEDE) |
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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
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
16/10/2018 |
Data da última atualização: |
19/05/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
FU, Z.; GERKEN, T.; BROMLEY, G.; ARAUJO, A. C. de; BONAL, D.; BURBAN, B.; FICKLIN, D.; FUENTES, J. D.; GOULDEN, M.; HIRANO, T.; KOSUGI, Y.; LIDDELL, M.; NICOLINI, G.; NIU, S.; ROUPSARD, O.; STEFANI, P.; MI, C.; TOFTE, Z.; XIAO, J.; VALENTINI, R.; WOLF, S.; STOY, P. C. |
Afiliação: |
Zheng Fu, Montana State University / Chinese Academy of Sciences / University of Chinese Academy of Sciences; Tobias Gerken, Montana State University; Gabriel Bromley, Montana State University; ALESSANDRO CARIOCA DE ARAUJO, CPATU; Damien Bonal, Université de Lorraine; Benoît Burban, INRA; Darren Ficklin, Indiana University; Jose D. Fuentes, The Pennsylvania State University; Michael Goulden, University of California; Takashi Hirano, Hokkaido University; Yoshiko Kosugi, Kyoto University; Michael Liddell, James Cook University / James Cook University; Giacomo Nicolini, University of Tuscia / Euro-Mediterranean Center on Climate Change; Shuli Niu, Chinese Academy of Sciences; Olivier Roupsard, CIRAD / CATIE; Paolo Stefani, University of Tuscia; Chunrong Mi, University of Chinese Academy of Sciences; Zaddy Tofte, Montana State University; Jingfeng Xiao, University of New Hampshire; Riccardo Valentini, University of Tuscia / Euro-Mediterranean Center on Climate Change; Sebastian Wolf, ETH Zurich; Paul C. Stoy, Montana State University. |
Título: |
The surface-atmosphere exchange of carbon dioxide in tropical rainforests: sensitivity to environmental drivers and flux measurement methodology. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Agricultural and Forest Meteorology, v. 263, p. 292-307, Dec. 2018. |
DOI: |
10.1016/j.agrformet.2018.09.001 |
Idioma: |
Inglês |
Conteúdo: |
Tropical rainforests play a central role in the Earth system by regulating climate, maintaining biodiversity, and sequestering carbon. They are under threat by direct anthropogenic impacts like deforestation and the indirect anthropogenic impacts of climate change. A synthesis of the factors that determine the net ecosystem exchange of carbon dioxide (NEE) at the site scale across different forests in the tropical rainforest biome has not been undertaken to date. Here, we study NEE and its components, gross ecosystem productivity (GEP) and ecosystem respiration (RE), across thirteen natural and managed forests within the tropical rainforest biome with 63 total site-years of eddy covariance data. Our results reveal that the five ecosystems with the largest annual gross carbon uptake by photosynthesis (i.e. GEP3000g C m-2 y-1) have the lowest net carbon uptake ? or even carbon losses ? versus other study ecosystems because RE is of a similar magnitude. Sites that provided subcanopy CO2 storage observations had higher average magnitudes of GEP and RE and lower average magnitudes of NEE, highlighting the importance of measurement methodology for understanding carbon dynamics in ecosystems with characteristically tall and dense vegetation. A path analysis revealed that vapor pressure deficit (VPD) played a greater role than soil moisture or air temperature in constraining GEP under light saturated conditions across most study sites, but to differing degrees from -0.31 to -0.87umol CO2 m-2 s-1 hPa-1. Climate projections from 13 general circulation models (CMIP5) under the representative concentration pathway that generates 8.5W m-2 of radiative forcing suggest that many current tropical rainforest sites on the lower end of the current temperature range are likely to reach a climate space similar to present-day warmer sites by the year 2050, warmer sites will reach a climate not currently experienced, and all forests are likely to experience higher VPD. Results demonstrate the need to quantify if and how mature tropical trees acclimate to heat and water stress, and to further develop flux-partitioning and gap-filling algorithms for defensible estimates of carbon exchange in tropical rainforests. MenosTropical rainforests play a central role in the Earth system by regulating climate, maintaining biodiversity, and sequestering carbon. They are under threat by direct anthropogenic impacts like deforestation and the indirect anthropogenic impacts of climate change. A synthesis of the factors that determine the net ecosystem exchange of carbon dioxide (NEE) at the site scale across different forests in the tropical rainforest biome has not been undertaken to date. Here, we study NEE and its components, gross ecosystem productivity (GEP) and ecosystem respiration (RE), across thirteen natural and managed forests within the tropical rainforest biome with 63 total site-years of eddy covariance data. Our results reveal that the five ecosystems with the largest annual gross carbon uptake by photosynthesis (i.e. GEP3000g C m-2 y-1) have the lowest net carbon uptake ? or even carbon losses ? versus other study ecosystems because RE is of a similar magnitude. Sites that provided subcanopy CO2 storage observations had higher average magnitudes of GEP and RE and lower average magnitudes of NEE, highlighting the importance of measurement methodology for understanding carbon dynamics in ecosystems with characteristically tall and dense vegetation. A path analysis revealed that vapor pressure deficit (VPD) played a greater role than soil moisture or air temperature in constraining GEP under light saturated conditions across most study sites, but to differing degrees from -0.31 to -0.87umo... Mostrar Tudo |
Palavras-Chave: |
Respiração do ecossistema; Variabilidade climática. |
Thesagro: |
Dióxido de Carbono; Floresta Tropical. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
Marc: |
LEADER 03464naa a2200433 a 4500 001 2097454 005 2022-05-19 008 2018 bl uuuu u00u1 u #d 024 7 $a10.1016/j.agrformet.2018.09.001$2DOI 100 1 $aFU, Z. 245 $aThe surface-atmosphere exchange of carbon dioxide in tropical rainforests$bsensitivity to environmental drivers and flux measurement methodology.$h[electronic resource] 260 $c2018 520 $aTropical rainforests play a central role in the Earth system by regulating climate, maintaining biodiversity, and sequestering carbon. They are under threat by direct anthropogenic impacts like deforestation and the indirect anthropogenic impacts of climate change. A synthesis of the factors that determine the net ecosystem exchange of carbon dioxide (NEE) at the site scale across different forests in the tropical rainforest biome has not been undertaken to date. Here, we study NEE and its components, gross ecosystem productivity (GEP) and ecosystem respiration (RE), across thirteen natural and managed forests within the tropical rainforest biome with 63 total site-years of eddy covariance data. Our results reveal that the five ecosystems with the largest annual gross carbon uptake by photosynthesis (i.e. GEP3000g C m-2 y-1) have the lowest net carbon uptake ? or even carbon losses ? versus other study ecosystems because RE is of a similar magnitude. Sites that provided subcanopy CO2 storage observations had higher average magnitudes of GEP and RE and lower average magnitudes of NEE, highlighting the importance of measurement methodology for understanding carbon dynamics in ecosystems with characteristically tall and dense vegetation. A path analysis revealed that vapor pressure deficit (VPD) played a greater role than soil moisture or air temperature in constraining GEP under light saturated conditions across most study sites, but to differing degrees from -0.31 to -0.87umol CO2 m-2 s-1 hPa-1. Climate projections from 13 general circulation models (CMIP5) under the representative concentration pathway that generates 8.5W m-2 of radiative forcing suggest that many current tropical rainforest sites on the lower end of the current temperature range are likely to reach a climate space similar to present-day warmer sites by the year 2050, warmer sites will reach a climate not currently experienced, and all forests are likely to experience higher VPD. Results demonstrate the need to quantify if and how mature tropical trees acclimate to heat and water stress, and to further develop flux-partitioning and gap-filling algorithms for defensible estimates of carbon exchange in tropical rainforests. 650 $aDióxido de Carbono 650 $aFloresta Tropical 653 $aRespiração do ecossistema 653 $aVariabilidade climática 700 1 $aGERKEN, T. 700 1 $aBROMLEY, G. 700 1 $aARAUJO, A. C. de 700 1 $aBONAL, D. 700 1 $aBURBAN, B. 700 1 $aFICKLIN, D. 700 1 $aFUENTES, J. D. 700 1 $aGOULDEN, M. 700 1 $aHIRANO, T. 700 1 $aKOSUGI, Y. 700 1 $aLIDDELL, M. 700 1 $aNICOLINI, G. 700 1 $aNIU, S. 700 1 $aROUPSARD, O. 700 1 $aSTEFANI, P. 700 1 $aMI, C. 700 1 $aTOFTE, Z. 700 1 $aXIAO, J. 700 1 $aVALENTINI, R. 700 1 $aWOLF, S. 700 1 $aSTOY, P. C. 773 $tAgricultural and Forest Meteorology$gv. 263, p. 292-307, Dec. 2018.
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