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Registro Completo |
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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
24/02/2015 |
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Data da última atualização: |
29/05/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VICCA, S.; BAHN, M.; ESTIARTE, M.; VAN LOON, E. E.; VARGAS, R.; ALBERTI, G.; AMBUS, P.; ARAIN, M. A.; BEIER, C.; BENTLEY, L. P.; BORKEN, W.; BUCHMANN, N.; COLLINS, S. L.; GATO, G. de; DUKES, J. S.; ESCOLAR, C.; FAY, P.; GUIDOLOTTI, G.; HANSON, P. J.; KAHMEN, A.; KRÖEL-DULAY, G.; LADREITER-KNAUSS, T.; LARSEN, K. S.; LELLEI-KOVACS, E.; LEBRIJA-TREJOS, E.; MAESTRE, F. T.; MARHAN, S.; MARSHALL, M.; MEIR, P.; MIAO, Y.; MUHR, J.; NIKLAUS, P. A.; OGAYA, R.; PEÑUELAS, J.; POLL, C.; RUSTAD, L. E.; SAVAGE, K.; SCHINDLBACHER, A.; SCHMIDT, I. K.; SMITH, A. R.; SOTTA, E. D.; SUSEELA, V.; TIETEMA, A.; VAN GESTEL, N.; VAN STRAATEN, O.; WAN, S.; WEBER, U.; JANSSENS, I. A. |
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Afiliação: |
ELENEIDE DOFF SOTTA, CPAF-AP. |
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Título: |
Can current moisture responses predict soil CO2 efflux under altered precipitation regimes? A synthesis of manipulation experiments. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Biogeosciences, v. 11, n. 11, p. 2991-3013, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
As a key component of the carbon cycle, soil CO2 efflux (SCE) is being increasingly studied to improve our mechanistic understanding of this important carbon flux. Predicting ecosystem responses to climate change often depends on extrapolation of current relationships between ecosystem processes and their climatic drivers to conditions not yet experienced by the ecosystem. This raises the question of to what extent these relationships remain unaltered beyond the current climatic window for which observations are available to constrain the relationships. Here, we evaluate whether current responses of SCE to fluctuations in soil temperature and soil water content can be used to predict SCE under altered rainfall patterns. Of the 58 experiments for which we gathered SCE data, 20 were discarded because either too few data were available or inconsistencies precluded their incorporation in the analyses. The 38 remaining experiments were used to test the hypothesis that a model parameterized with data from the control plots (using soil temperature and water content as predictor variables) could adequately predict SCE measured in the manipulated treatment. Only for 7 of these 38 experiments was this hypothesis rejected. Importantly, these were the experiments with the most reliable data sets, i.e., those providing high-frequency measurements of SCE. Regression tree analysis demonstrated that our hypothesis could be rejected only for experiments with measurement intervals of less than 11 days, and was not rejected for any of the 24 experiments with larger measurement intervals. This highlights the importance of high-frequency measurements when studying effects of altered precipitation on SCE, probably because infrequent measurement schemes have insufficient capacity to detect shifts in the climate dependencies of SCE. Hence, the most justified answer to the question of whether current moisture responses of SCE can be extrapolated to predict SCE under altered precipitation regimes is ?no? ? as based on the most reliable data sets available. We strongly recommend that future experiments focus more strongly on establishing response functions across a broader range of precipitation regimes and soil moisture conditions. Such experiments should make accurate measurements of water availability, should conduct high-frequency SCE measurements, and should consider both instantaneous responses and the potential legacy effects of climate extremes. This is important, because with the novel approach presented here, we demonstrated that, at least for some ecosystems, current moisture responses could not be extrapolated to predict SCE under altered rainfall conditions. MenosAs a key component of the carbon cycle, soil CO2 efflux (SCE) is being increasingly studied to improve our mechanistic understanding of this important carbon flux. Predicting ecosystem responses to climate change often depends on extrapolation of current relationships between ecosystem processes and their climatic drivers to conditions not yet experienced by the ecosystem. This raises the question of to what extent these relationships remain unaltered beyond the current climatic window for which observations are available to constrain the relationships. Here, we evaluate whether current responses of SCE to fluctuations in soil temperature and soil water content can be used to predict SCE under altered rainfall patterns. Of the 58 experiments for which we gathered SCE data, 20 were discarded because either too few data were available or inconsistencies precluded their incorporation in the analyses. The 38 remaining experiments were used to test the hypothesis that a model parameterized with data from the control plots (using soil temperature and water content as predictor variables) could adequately predict SCE measured in the manipulated treatment. Only for 7 of these 38 experiments was this hypothesis rejected. Importantly, these were the experiments with the most reliable data sets, i.e., those providing high-frequency measurements of SCE. Regression tree analysis demonstrated that our hypothesis could be rejected only for experiments with measurement intervals of less tha... Mostrar Tudo |
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Palavras-Chave: |
Rainfall. |
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Thesagro: |
Mudança Climática; Precipitação pluvial; Solo; Umidade. |
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Thesaurus Nal: |
climate change; humidity; soil. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/118934/1/CAP-AP-2014-Can-current-moisture.pdf
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Marc: |
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100 1 $aVICCA, S.
245 $aCan current moisture responses predict soil CO2 efflux under altered precipitation regimes? A synthesis of manipulation experiments.$h[electronic resource]
260 $c2014
520 $aAs a key component of the carbon cycle, soil CO2 efflux (SCE) is being increasingly studied to improve our mechanistic understanding of this important carbon flux. Predicting ecosystem responses to climate change often depends on extrapolation of current relationships between ecosystem processes and their climatic drivers to conditions not yet experienced by the ecosystem. This raises the question of to what extent these relationships remain unaltered beyond the current climatic window for which observations are available to constrain the relationships. Here, we evaluate whether current responses of SCE to fluctuations in soil temperature and soil water content can be used to predict SCE under altered rainfall patterns. Of the 58 experiments for which we gathered SCE data, 20 were discarded because either too few data were available or inconsistencies precluded their incorporation in the analyses. The 38 remaining experiments were used to test the hypothesis that a model parameterized with data from the control plots (using soil temperature and water content as predictor variables) could adequately predict SCE measured in the manipulated treatment. Only for 7 of these 38 experiments was this hypothesis rejected. Importantly, these were the experiments with the most reliable data sets, i.e., those providing high-frequency measurements of SCE. Regression tree analysis demonstrated that our hypothesis could be rejected only for experiments with measurement intervals of less than 11 days, and was not rejected for any of the 24 experiments with larger measurement intervals. This highlights the importance of high-frequency measurements when studying effects of altered precipitation on SCE, probably because infrequent measurement schemes have insufficient capacity to detect shifts in the climate dependencies of SCE. Hence, the most justified answer to the question of whether current moisture responses of SCE can be extrapolated to predict SCE under altered precipitation regimes is ?no? ? as based on the most reliable data sets available. We strongly recommend that future experiments focus more strongly on establishing response functions across a broader range of precipitation regimes and soil moisture conditions. Such experiments should make accurate measurements of water availability, should conduct high-frequency SCE measurements, and should consider both instantaneous responses and the potential legacy effects of climate extremes. This is important, because with the novel approach presented here, we demonstrated that, at least for some ecosystems, current moisture responses could not be extrapolated to predict SCE under altered rainfall conditions.
650 $aclimate change
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650 $asoil
650 $aMudança Climática
650 $aPrecipitação pluvial
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650 $aUmidade
653 $aRainfall
700 1 $aBAHN, M.
700 1 $aESTIARTE, M.
700 1 $aVAN LOON, E. E.
700 1 $aVARGAS, R.
700 1 $aALBERTI, G.
700 1 $aAMBUS, P.
700 1 $aARAIN, M. A.
700 1 $aBEIER, C.
700 1 $aBENTLEY, L. P.
700 1 $aBORKEN, W.
700 1 $aBUCHMANN, N.
700 1 $aCOLLINS, S. L.
700 1 $aGATO, G. de
700 1 $aDUKES, J. S.
700 1 $aESCOLAR, C.
700 1 $aFAY, P.
700 1 $aGUIDOLOTTI, G.
700 1 $aHANSON, P. J.
700 1 $aKAHMEN, A.
700 1 $aKRÖEL-DULAY, G.
700 1 $aLADREITER-KNAUSS, T.
700 1 $aLARSEN, K. S.
700 1 $aLELLEI-KOVACS, E.
700 1 $aLEBRIJA-TREJOS, E.
700 1 $aMAESTRE, F. T.
700 1 $aMARHAN, S.
700 1 $aMARSHALL, M.
700 1 $aMEIR, P.
700 1 $aMIAO, Y.
700 1 $aMUHR, J.
700 1 $aNIKLAUS, P. A.
700 1 $aOGAYA, R.
700 1 $aPEÑUELAS, J.
700 1 $aPOLL, C.
700 1 $aRUSTAD, L. E.
700 1 $aSAVAGE, K.
700 1 $aSCHINDLBACHER, A.
700 1 $aSCHMIDT, I. K.
700 1 $aSMITH, A. R.
700 1 $aSOTTA, E. D.
700 1 $aSUSEELA, V.
700 1 $aTIETEMA, A.
700 1 $aVAN GESTEL, N.
700 1 $aVAN STRAATEN, O.
700 1 $aWAN, S.
700 1 $aWEBER, U.
700 1 $aJANSSENS, I. A.
773 $tBiogeosciences$gv. 11, n. 11, p. 2991-3013, 2014.
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Registro original: |
Embrapa Amapá (CPAF-AP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
29/11/2011 |
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Data da última atualização: |
27/10/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CIA, E.; FUZATTO, M. G.; KONDO, J. I.; GALBIERI, R.; ALMEIDA, W. P. de; OLIVEIRA, A. B. de; KRZYZANOWSKY, A. A.; LEBEDENCO, A.; MARTINS, A. L. M.; MORELLO, C. de L.; PEREIRA, D. J.; MESQUITA NETO, D. R.; BOLONHEZ, D.; CHIAVEGATO, E. J.; MACHADO, E. F.; FURLANI JÚNIOR, E.; TAKIZAWA, E. K.; DIAS, F. L. F.; FARIAS, F. J. C.; KASAI, F. S.; OHL, G. de A.; CUNHA, H. F. da; BELOT, J. L.; CAVICHIOLI, J. C.; CARVALHO, L. H.; BERIAM, L. O. S.; OLIVEIRA, M. A. C. de; LANZA, M. A.; PEREIRA, M.; MICHELOTTO, M. D.; ITO, M. F.; PEDROSA, M. B.; SUASSUNA, N. D.; GALLO, P. B.; RECO, P. C.; AGUIAR, P. H.; LUDERS, R. R.; MATTOS, R. E. M. F.; FREITAS, R. S. de; RIZZI, U. dos S. |
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Afiliação: |
EDIVALDO CIA; MILTON GERALDO FUZATTO; JULIO ISAO KONDO; RAFAEL GALBIERI; WILSON PAES DE ALMEIDA; ADRIANO BORGES DE OLIVEIRA; ALAIDE APARECIDA KRZYZANOWSKY; ANATOLI LEBEDENCO; ANTONIO LÚCIO MELLO MARTINS; CAMILO DE LELIS MORELLO, CNPA; DANIEL JOSÉ PEREIRA; DARIO ROSA MESQUITA NETO; DENIZART BOLONHEZ; EDERALDO JOSÉ CHIAVEGATO; ELIO FÁBIO MACHADO; ENES FURLANI JÚNIOR; EVALDO KAZUSHI TAKIZAWA; FÁBIO LUIS FEREIRA DIAS; FRANCISCO JOSE CORREIA FARIAS, CNPA; FRANCISCO SEIITI KASAI; GUILHERME DE ALMEIDA OHL; HÉLIO FERREIRA DA CUNHA; JEAN LOUIS BELOT; JOSÉ CARLOS CAVICHIOLI; LUIZ HENRIQUE CARVALHO; LUIS OTÁVIO SAGGION BERIAM; MANSUÊMIA ALVEZ COUTO DE OLIVEIRA; MARCELO ABREU LANZA; MÁRCIO PEREIRA; MARCOS DONISETI MICHELOTTO; MARGARIDA FUMIKO ITO; MURILO BARROS PEDROSA; NELSON DIAS SUASSUNA, CNPA; PAULO BOLLER GALLO; PAULO CESAR RECO; PAULO HUGO AGUIAR; REGINALDO ROBERTO LUDERS; RENATO EMÍDIO MENDONÇA FREITAS MATTOS; ROGÉRIO SOARES DE FREITAS; UEVERTON DOS SANTOS RIZZI. |
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Título: |
Comportamento de genótipos de algodoeiro na presença de patógenos e nematóides em 2010. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DO ALGODÃO, 8.; COTTON EXPO, 1., 2011, São Paulo. Evolução da cadeia para construção de um setor forte: Anais. Campina Grande, PB: Embrapa Algodão, 2011. |
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Páginas: |
p.1344-1349 |
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Idioma: |
Português |
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Palavras-Chave: |
Resistência múltipla. |
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Thesagro: |
Algodão; Doença; Nematóide. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/48447/1/MEL-014Poster.256.pdf
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Marc: |
LEADER 01842nam a2200625 a 4500
001 1907812
005 2017-10-27
008 2011 bl uuuu u00u1 u #d
100 1 $aCIA, E.
245 $aComportamento de genótipos de algodoeiro na presença de patógenos e nematóides em 2010.
260 $aIn: CONGRESSO BRASILEIRO DO ALGODÃO, 8.; COTTON EXPO, 1., 2011, São Paulo. Evolução da cadeia para construção de um setor forte: Anais. Campina Grande, PB: Embrapa Algodão$c2011
300 $ap.1344-1349
650 $aAlgodão
650 $aDoença
650 $aNematóide
653 $aResistência múltipla
700 1 $aFUZATTO, M. G.
700 1 $aKONDO, J. I.
700 1 $aGALBIERI, R.
700 1 $aALMEIDA, W. P. de
700 1 $aOLIVEIRA, A. B. de
700 1 $aKRZYZANOWSKY, A. A.
700 1 $aLEBEDENCO, A.
700 1 $aMARTINS, A. L. M.
700 1 $aMORELLO, C. de L.
700 1 $aPEREIRA, D. J.
700 1 $aMESQUITA NETO, D. R.
700 1 $aBOLONHEZ, D.
700 1 $aCHIAVEGATO, E. J.
700 1 $aMACHADO, E. F.
700 1 $aFURLANI JÚNIOR, E.
700 1 $aTAKIZAWA, E. K.
700 1 $aDIAS, F. L. F.
700 1 $aFARIAS, F. J. C.
700 1 $aKASAI, F. S.
700 1 $aOHL, G. de A.
700 1 $aCUNHA, H. F. da
700 1 $aBELOT, J. L.
700 1 $aCAVICHIOLI, J. C.
700 1 $aCARVALHO, L. H.
700 1 $aBERIAM, L. O. S.
700 1 $aOLIVEIRA, M. A. C. de
700 1 $aLANZA, M. A.
700 1 $aPEREIRA, M.
700 1 $aMICHELOTTO, M. D.
700 1 $aITO, M. F.
700 1 $aPEDROSA, M. B.
700 1 $aSUASSUNA, N. D.
700 1 $aGALLO, P. B.
700 1 $aRECO, P. C.
700 1 $aAGUIAR, P. H.
700 1 $aLUDERS, R. R.
700 1 $aMATTOS, R. E. M. F.
700 1 $aFREITAS, R. S. de
700 1 $aRIZZI, U. dos S.
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Embrapa Algodão (CNPA) |
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