| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amapá. |
|
Data corrente: |
04/09/2013 |
|
Data da última atualização: |
04/09/2013 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
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. |
|
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. |
|
Título: |
Confronting model predictions of carbon fluxes with measurements of Amazon forests subjected to experimental drought. |
|
Ano de publicação: |
2013 |
|
Fonte/Imprenta: |
New Phytologist, Cambridge, Jul. 2013. |
|
Idioma: |
Inglês |
|
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 |
|
Palavras-Chave: |
Ciclo do cabono; Modelo de biosfera terrestre; Terrestrial biosphere model; Tropical rainforest. |
|
Thesagro: |
Floresta tropical. |
|
Thesaurus Nal: |
carbon cycle. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/89031/1/CPAFAP-2013-Confronting-model-predictions-of-carbon.pdf
|
|
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.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amapá (CPAF-AP) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Semiárido; Embrapa Uva e Vinho. |
|
Data corrente: |
05/01/2017 |
|
Data da última atualização: |
10/11/2023 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
LINHARES, M. do S. S.; COSTA, A. O.; NASCIMENTO, A. M. de S.; SOUZA, J. F. de; SANTOS, A. de F.; PRUDÊNCIO, M. da C.; PEREIRA, G. E. |
|
Afiliação: |
Maria do Socorro Silva Linhares, Embrapa Tropical Semi-arid Fellowship, Petrolina, PE, Brazil; Ayrlan Oliveira Costa, Master Student, University of Bahia Estate, Juazeiro, BA, Brazil; Antonio Mendes de Souza Nascimento, Master Student, University of Bahia Estate, Juazeiro, BA, Brazil; Joyce Fagundes de Souza, Master Student, University of Bahia Estate, Juazeiro, BA, Brazil; Sabrina de Freitas Santos, Master Student, University of Bahia Estate, Juazeiro, BA, Brazil; Maria da Conceição Prudêncio, Master Student, University of Bahia Estate, Juazeiro, BA, Brazil; GIULIANO ELIAS PEREIRA, CNPUV / CPATSA. |
|
Título: |
Enological characteristics of Chardonnay grapes produced in tropical climate in the Northeastern of Brazil. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
In: INTERNATIONAL SYMPOSIUM ON TROPICAL WINES, 5., 2016, Petrolina. Book of abstracts... Petrolina: Embrapa Semiárido, 2016. |
|
Páginas: |
p. 52. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The climate has very strong influence on the vine performance, being the main factor to determine the potentiality of wine from a new region. There is also interactions among wine quality and other factors, such as soil, variety and the management adopted in the vineyard. In tropical climates, as in the São Francisco Valley (VSF), located at 350 m of elevation and 9º S of latitude, vines grown continuously, and with the use of specific technologies, it is possible to have two harvests per year in the same vineyard |
|
Palavras-Chave: |
Nordeste do Brasil; Uva Chardonnay. |
|
Thesagro: |
Clima Tropical; Uva. |
|
Thesaurus NAL: |
Grapes. |
|
Categoria do assunto: |
--
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/152848/1/Giuliano-p52-Book-of-Abstracts-ISTW-2016.pdf
|
|
Marc: |
LEADER 01351nam a2200253 a 4500
001 2060574
005 2023-11-10
008 2016 bl uuuu u00u1 u #d
100 1 $aLINHARES, M. do S. S.
245 $aEnological characteristics of Chardonnay grapes produced in tropical climate in the Northeastern of Brazil.$h[electronic resource]
260 $aIn: INTERNATIONAL SYMPOSIUM ON TROPICAL WINES, 5., 2016, Petrolina. Book of abstracts... Petrolina: Embrapa Semiárido$c2016
300 $ap. 52.
520 $aThe climate has very strong influence on the vine performance, being the main factor to determine the potentiality of wine from a new region. There is also interactions among wine quality and other factors, such as soil, variety and the management adopted in the vineyard. In tropical climates, as in the São Francisco Valley (VSF), located at 350 m of elevation and 9º S of latitude, vines grown continuously, and with the use of specific technologies, it is possible to have two harvests per year in the same vineyard
650 $aGrapes
650 $aClima Tropical
650 $aUva
653 $aNordeste do Brasil
653 $aUva Chardonnay
700 1 $aCOSTA, A. O.
700 1 $aNASCIMENTO, A. M. de S.
700 1 $aSOUZA, J. F. de
700 1 $aSANTOS, A. de F.
700 1 $aPRUDÊNCIO, M. da C.
700 1 $aPEREIRA, G. E.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
