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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
650 $ahumidity
650 $asoil
650 $aMudança Climática
650 $aPrecipitação pluvial
650 $aSolo
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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| 3. |  | CONGRO, C. R.; GIUMELLI, O. D.; FACCENDA, O.; SOUZA, M. J. B. de. Avaliação da qualidade dos serviços turísticos da capital do Pantanal Sul: Corumbá (MS). Separata de Evidência, Unoesc, v. 5, n.2, p. 363-378, jul./dez., 2005. 16 p.| Biblioteca(s): Embrapa Pantanal. |
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| 4. | | SILVA, L. J. da; CREVELIN, E. J.; SOUZA, D. T.; LACERDA JÚNIOR, G. V.; OLIVEIRA, V. M.; RUIZ, A. L. T. G.; ROSA, L. H.; MORAES, L. A. B.; MELO, I. S. de. Actinobacteria from Antarctica as a source for anticancer discovery. Scientific Reports, v. 10, article 13870, 2020. p. 1-15.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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| 5. | | PASSOS, L. P.; KOPP, M. M.; VIDIGAL, M. C.; FERNANDES, F. DE S.; MARQUES, R.; VALE, N. M. DO; BARILI, L. D. Assessment of the efficiency of disinfectants and their influence on the germination of Brachiaria seeds for in vitro culture purposes. In: INTERNATIONAL ANNUAL MEETINGS, 2009, Pittsburgh. Anais... Pittsburg: ASA-CSSA-SSSA, 2009.| Tipo: Resumo em Anais de Congresso |
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| 6. | | COSTA, N. de L.; PAULINO, V. T.; MAGALHÃES, J. A; TOWNSEND, C. R.; PEREIRA, R. G. de A. Análise do crescimento de Brachiaria dictyoneura nos cerrados de Rondônia. PUBVET, Londrina, v. 7, n. 22, Ed. 245, Art. 1618, nov. 2013. Não paginado.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
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| 8. | | STAUT, L. A.; KURIHARA, C. H. Calagem e adubacao. In: EMBRAPA AGROPECUARIA OESTE. Algodao: tecnologia de producao. Dourados: Embrapa Agropecuaria Oeste; Campina Gradne: Embrapa Algodao, 2001. p.103-123.| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 9. | | MIRANDA, E. E. de (Coord.). Brasil Visto do Espaço: Pernambuco Campinas: Embrapa Monitoramento por Satélite; Brasília: Embrapa Comunicação para Transferência de Tecnologia, 2002. 1 CD-ROM; Windows 9x ou NT; Composição col. Coordenador técnico: Alexandre Camargo Coutinho; Equipe técnica: Carlos Fernando Assis Paniago, Marcelo Guimarães, José Roberto Miranda, Ana Lúcia Filardi.| Biblioteca(s): Embrapa Territorial. |
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| 11. | | GOMES, E. A.; LANA, U. G. P.; GUIMARAES, C. T.; CARNEIRO, N. P.; JARDIM, S. N.; ALVES, V. M. C.; PURCINO, A. A. C. Genes induzidos por alumínio em apices de raízes de uma cultivar de arroz tolerante. In: CONGRESSO NACIONAL DE MILHO E SORGO, 25.; SIMPOSIO BRASILEIRO SOBRE A LAGARTA-DO-CARTUCHO, SPODOPTERA FRUGIPERDA, 1., 2004, Cuiabá, MT. Da agricultura familiar ao agronegócio: tecnologia, competitividade e sustentabilidade: [resumos expandidos]. Sete Lagoas: ABMS: Embrapa Milho e Sorgo; Cuiabá: Empaer, 2004. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
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| 12. | | FRANÇA-NETO, J. B.; KRZYZANOWSKI, F. C.; WEST, S. H.; HENNING, A. A.; COSTA, N. P. Comparacao da qualidade de sementes de soja com tegumento preto e amarelo. Informativo ABRATES, Curitiba, v.9, n.1/2, p.33, jul./ago. 1999. Numero especial, ref. 005. Resumo apresentado no XI Congresso Brasileiro de Sementes.| Tipo: Resumo em Anais de Congresso |
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| 14. | | NASCIMENTO, R. J. M.; BEZERRA, L. C. A.; ALMEIDA, J. S.; BARROS, M. DE O.; SILVA, L. R. R.; ROSA, M. de F.; MAZZETO, S. E.; LOMONACO, D.; PEREIRA, K. R. A.; AVELINO, F. Elucidating the adsorption mechanism of Rhodamine B on mesoporous coconut coir?based biosorbents through a non?linear modeling and recycling approach. Environmental Science and Pollution Research, jan. 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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| Registros recuperados : 16 | |
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