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Registro Completo |
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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
04/09/2013 |
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Data da última atualização: |
04/09/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
POWELL, T. I.; GALBRAITH, D. R.; CHRISTOFFERSEN, B. O.; HARPER, A.; IMBUZEIRO, H. M. A.; ROWLAND, L.; ALMEIDA, S.; BRANDO, P. M.; COSTA, A. C. L. da; COSTA, M. H.; LEVINE, N. M.; MALHI, Y.; SALESKA, S. R.; SOTTA, E.; WILLIAMS, M.; MEIR, P.; MOORCROFT, P. R. |
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Afiliação: |
Thomas L. Powell, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA; David R. Galbraith, School of Geography, University of Leeds, Leeds, LS2 9JT, UK; Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, OX1 3QY, UK; Bradley O. Christoffersen, Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, USA; Anna Harper, College of Engineering, Mathematics, and Physical Science, University of Exeter, Exeter, EX4 4QF, UK; Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523, USA; Hewlley M. A. Imbuzeiro, Grupo de Pesquisas em Interação Atmosfera-Biosfera, Universidade Federal de Vicosa, Vicosa, CEP 36570-000, Minas Gerias, Brazil; Lucy Rowland, School of GeoSciences, University of Edinburgh, Edinburgh, EH8 9XP, UK; Samuel Almeida, Museu Paraense Emilio Goeldi, Belem, CEP 66077-530, Para, Brazil; Paulo M. Brando, Instituto de Pesquisa Ambiental da Amazônia, CEP 71503-505, Brasilia, Distrito Federal, Brazil; Antonio Carlos Lola da Costa, Centro de Geociências, Universidade Federal do Para, Belem, CEP 66017-970, Para, Brazil; Marcos Heil Costa, Grupo de Pesquisas em Interac~ao Atmosfera-Biosfera, Universidade Federal de Vicosa, Vicosa, CEP 36570-000, Minas Gerias, Brazil; Naomi M. Levine, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA; Yadvinder Malhi, Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, OX1 3QY, UK; Scott R. Saleska, Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, USA; ELENEIDE DOFF SOTTA, CPAF-AP; Mathew Williams, School of GeoSciences, University of Edinburgh, Edinburgh, EH8 9XP, UK; Patrick Meir, School of GeoSciences, University of Edinburgh, Edinburgh, EH8 9XP, UK; Paul R. Moorcroft, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA. |
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Título: |
Confronting model predictions of carbon fluxes with measurements of Amazon forests subjected to experimental drought. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
New Phytologist, Cambridge, Jul. 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
Considerable uncertainty surrounds the fate of Amazon rainforests in response to climate change. Here, carbon (C) flux predictions of five terrestrial biosphere models (Community Land Model version 3.5 (CLM3.5), Ecosystem Demography model version 2.1 (ED2), Integrated BIosphere Simulator version 2.6.4 (IBIS), Joint UK Land Environment Simulator version 2.1 (JULES) and Simple Biosphere model version 3 (SiB3)) and a hydrodynamic terrestrial ecosystem model (the Soil?Plant?Atmosphere (SPA) model) were evaluated against measurements from two large-scale Amazon drought experiments. Model predictions agreed with the observed C fluxes in the control plots of both experiments, but poorly replicated the responses to the drought treatments. Most notably, with the exception of ED2, the models predicted negligible reductions in aboveground biomass in response to the drought treatments, which was in contrast to an observed c. 20% reduction at both sites. For ED2, the timing of the decline in aboveground biomass was accurate, but the magnitude was too high for one site and too low for the other. Three key findings indicate critical areas for future research and model development. First, the models predicted declines in autotrophic respiration under prolonged drought in contrast to measured increases at one of the sites. Secondly, models lacking a phenological response to drought introduced bias in the sensitivity of canopy productivity and respiration to drought. Thirdly, the phenomenological water-stress functions used by the terrestrial biosphere models to represent the effects of soil moisture on stomatal conductance yielded unrealistic diurnal and seasonal responses to drought. MenosConsiderable uncertainty surrounds the fate of Amazon rainforests in response to climate change. Here, carbon (C) flux predictions of five terrestrial biosphere models (Community Land Model version 3.5 (CLM3.5), Ecosystem Demography model version 2.1 (ED2), Integrated BIosphere Simulator version 2.6.4 (IBIS), Joint UK Land Environment Simulator version 2.1 (JULES) and Simple Biosphere model version 3 (SiB3)) and a hydrodynamic terrestrial ecosystem model (the Soil?Plant?Atmosphere (SPA) model) were evaluated against measurements from two large-scale Amazon drought experiments. Model predictions agreed with the observed C fluxes in the control plots of both experiments, but poorly replicated the responses to the drought treatments. Most notably, with the exception of ED2, the models predicted negligible reductions in aboveground biomass in response to the drought treatments, which was in contrast to an observed c. 20% reduction at both sites. For ED2, the timing of the decline in aboveground biomass was accurate, but the magnitude was too high for one site and too low for the other. Three key findings indicate critical areas for future research and model development. First, the models predicted declines in autotrophic respiration under prolonged drought in contrast to measured increases at one of the sites. Secondly, models lacking a phenological response to drought introduced bias in the sensitivity of canopy productivity and respiration to drought. Thirdly, the phenomenolog... Mostrar Tudo |
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Palavras-Chave: |
Ciclo do cabono; Modelo de biosfera terrestre; Terrestrial biosphere model; Tropical rainforest. |
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Thesagro: |
Floresta tropical. |
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Thesaurus Nal: |
carbon cycle. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/89031/1/CPAFAP-2013-Confronting-model-predictions-of-carbon.pdf
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Marc: |
LEADER 02802naa a2200385 a 4500
001 1965567
005 2013-09-04
008 2013 bl uuuu u00u1 u #d
100 1 $aPOWELL, T. I.
245 $aConfronting model predictions of carbon fluxes with measurements of Amazon forests subjected to experimental drought.$h[electronic resource]
260 $c2013
520 $aConsiderable uncertainty surrounds the fate of Amazon rainforests in response to climate change. Here, carbon (C) flux predictions of five terrestrial biosphere models (Community Land Model version 3.5 (CLM3.5), Ecosystem Demography model version 2.1 (ED2), Integrated BIosphere Simulator version 2.6.4 (IBIS), Joint UK Land Environment Simulator version 2.1 (JULES) and Simple Biosphere model version 3 (SiB3)) and a hydrodynamic terrestrial ecosystem model (the Soil?Plant?Atmosphere (SPA) model) were evaluated against measurements from two large-scale Amazon drought experiments. Model predictions agreed with the observed C fluxes in the control plots of both experiments, but poorly replicated the responses to the drought treatments. Most notably, with the exception of ED2, the models predicted negligible reductions in aboveground biomass in response to the drought treatments, which was in contrast to an observed c. 20% reduction at both sites. For ED2, the timing of the decline in aboveground biomass was accurate, but the magnitude was too high for one site and too low for the other. Three key findings indicate critical areas for future research and model development. First, the models predicted declines in autotrophic respiration under prolonged drought in contrast to measured increases at one of the sites. Secondly, models lacking a phenological response to drought introduced bias in the sensitivity of canopy productivity and respiration to drought. Thirdly, the phenomenological water-stress functions used by the terrestrial biosphere models to represent the effects of soil moisture on stomatal conductance yielded unrealistic diurnal and seasonal responses to drought.
650 $acarbon cycle
650 $aFloresta tropical
653 $aCiclo do cabono
653 $aModelo de biosfera terrestre
653 $aTerrestrial biosphere model
653 $aTropical rainforest
700 1 $aGALBRAITH, D. R.
700 1 $aCHRISTOFFERSEN, B. O.
700 1 $aHARPER, A.
700 1 $aIMBUZEIRO, H. M. A.
700 1 $aROWLAND, L.
700 1 $aALMEIDA, S.
700 1 $aBRANDO, P. M.
700 1 $aCOSTA, A. C. L. da
700 1 $aCOSTA, M. H.
700 1 $aLEVINE, N. M.
700 1 $aMALHI, Y.
700 1 $aSALESKA, S. R.
700 1 $aSOTTA, E.
700 1 $aWILLIAMS, M.
700 1 $aMEIR, P.
700 1 $aMOORCROFT, P. R.
773 $tNew Phytologist, Cambridge, Jul. 2013.
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Registro original: |
Embrapa Amapá (CPAF-AP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Solos; Embrapa Trigo. |
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Data corrente: |
17/09/2020 |
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Data da última atualização: |
25/01/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
FAVARIN, A. M.; KIM, J.-K.; LIMA, A. L. S. de; FARIA, G. R.; ANTUNES, J. M.; CASTRO, M. A. de; RODRIGUES, R. de A. R. |
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Afiliação: |
AURELIO MARTINS FAVARIN, CNPMS; Jeong-Nam Kim, University of Oklahoma; ANA LAURA SILVA DE LIMA COSTA, CPATU; GABRIEL REZENDE FARIA, CPAMT; JOSEANI MESQUITA ANTUNES, CNPT; MONICA APARECIDA DE CASTRO, CNPMS; RENATO DE ARAGAO RIBEIRO RODRIGUES, CNPS. |
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Título: |
What Brazil does when nature calls: applying situational theory of problem solving for coalition-building for sustainable agricultural practice for brazilian farmers. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
In: INTERNATIONAL PUBLIC RELATIONS RESEARCH CONFERENCE, 23., 2020, Orlando. Connecting theory and research with public relations practice: [proceedings]. Orlando: [s.n.], 2020. |
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Páginas: |
p. 179-189. |
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Idioma: |
Inglês |
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Conteúdo: |
Brazil initiated national actions toward sustainable farming in response to climate change. Qualitative studies were conducted using Situational Theory of Problem Solving (STOPS) to understand how farmers and stakeholders recognize problems and constraints in their solution adoption. A model practice of strategic communication is presented for the change agents in sustainable agriculture practice worldwide. |
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Palavras-Chave: |
Crop-livestock-forestry integration; ILPF; Integrated Crop-Livestock-Forest; STOPS; Sustentabilidade; Teoria da Resolução de Problemas. |
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Thesagro: |
Agricultura Sustentável; Comunicação; Relações Publicas; Sistema de Cultivo. |
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Thesaurus NAL: |
Sustainable agriculture. |
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Categoria do assunto: |
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E Economia e Indústria Agrícola
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/216057/1/What-Brazil.pdf
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Marc: |
LEADER 01609nam a2200325 a 4500
001 2139311
005 2022-01-25
008 2020 bl uuuu u01u1 u #d
100 1 $aFAVARIN, A. M.
245 $aWhat Brazil does when nature calls$bapplying situational theory of problem solving for coalition-building for sustainable agricultural practice for brazilian farmers.$h[electronic resource]
260 $aIn: INTERNATIONAL PUBLIC RELATIONS RESEARCH CONFERENCE, 23., 2020, Orlando. Connecting theory and research with public relations practice: [proceedings]. Orlando: [s.n.]$c2020
300 $ap. 179-189.
520 $aBrazil initiated national actions toward sustainable farming in response to climate change. Qualitative studies were conducted using Situational Theory of Problem Solving (STOPS) to understand how farmers and stakeholders recognize problems and constraints in their solution adoption. A model practice of strategic communication is presented for the change agents in sustainable agriculture practice worldwide.
650 $aSustainable agriculture
650 $aAgricultura Sustentável
650 $aComunicação
650 $aRelações Publicas
650 $aSistema de Cultivo
653 $aCrop-livestock-forestry integration
653 $aILPF
653 $aIntegrated Crop-Livestock-Forest
653 $aSTOPS
653 $aSustentabilidade
653 $aTeoria da Resolução de Problemas
700 1 $aKIM, J.-K.
700 1 $aLIMA, A. L. S. de
700 1 $aFARIA, G. R.
700 1 $aANTUNES, J. M.
700 1 $aCASTRO, M. A. de
700 1 $aRODRIGUES, R. de A. R.
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Embrapa Agrossilvipastoril (CPAMT) |
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