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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
18/01/2024 |
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Data da última atualização: |
23/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
JARDIM, A. M. da R. F.; MORAIS, J. E. F. de; SOUZA, L. S. B. de; MARIN, F. R.; MOURA, M. S. B. de; MORELLATO, L. P. C.; MONTENEGRO, A. A. de A.; OMETTO, J. P. H. B.; LIMA, J. L. M. P. de; DUBEUX JÚNIOR, J. C. B.; SILVA, T. G. F. da. |
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Afiliação: |
ALEXANDRE MANIÇOBA DA ROSA FERRAZ JARDIM, UFRPE; JOSÉ EDSON FLORENTINO DE MORAIS, UFRPE, Serra Talhada, PE; LUCIANA SANDRA BASTOS DE SOUZA, UFRPE, Serra Talhada, PE; FABIO RICARDO MARIN, USP; MAGNA SOELMA BESERRA DE MOURA, CPATSA; LEONOR PATRICIA CERDEIRA MORELLATO, UNESP, Rio Claro, SP; ABELARDO ANTÔNIO DE ASSUNÇÃO MONTENEGRO, UFRPE; JEAN PIERRE HENRY BALBAUD OMETTO, INPE; JOÃO L. M. P. DE LIMA, MARE—Marine and Environmental Sciences Centre, ARNET – Aquatic Research Network, Department of Civil Engineering, Faculty of Sciences and Technology; JOSÉ CARLOS BATISTA DUBEUX JÚNIOR, North Florida Research and Education Center, University of Florida; THIERES GEORGE FREIRE DA SILVA, Department of Agricultural Engineering, Federal Rural University of Pernambuco, Serra Talhada, PE. |
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Título: |
Sink or carbon source? how the Opuntia cactus agroecosystem interacts in the use of carbon, nutrients and radiation in the Brazilian semi-arid region. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Hydrology, v. 625, 130121, 2023. |
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DOI: |
https://doi.org/10.1016/j.jhydrol.2023.130121 |
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Idioma: |
Inglês |
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Conteúdo: |
Anthropogenic disturbances directly influence environmental processes and increase the concentration of carbon (C) in the atmosphere. Here, we compare the differences in the seasonality of the balance of carbon, energy, and radiation, as well as seek to identify the interrelationships between these environmental variables and their impact on the growth of Opuntia cactus. Data were acquired from an eddy covariance flux tower over a cactus crop agroecosystem (2019–2021) in the Brazilian semi-arid region. In addition, we use plant growth rates, carbon and nutrient stocks, evapotranspiration (ET) and water use efficiency (WUE), and radiation (RUE). We show that the closure of the surface energy balance was 71%, although there are minimal fluxes of available energy lost (29%) by unquantified processes. At all seasons, the highest net ecosystem CO2 exchange (NEE) rate was between 11:00–13:00 (�� 5.75 μmol m�� 2 s�� 1). During the dry and wet-dry season, there was the lowest daily gross primary productivity (GPP) (2.5 μmol m�� 2 s�� 1) and net radiation—Rn (217.97 W m�� 2). Ecosystem respiration was more expressive during the wet season (2.41 μmol m�� 2 s�� 1), and maximum diurnal value of 2.65 μmol m�� 2 s�� 1. Furthermore, the latent heat flux was higher during the wet season (114.68 W m�� 2) and lowered in the dry season (9.39 W m�� 2). The net assimilation rate showed higher values during the dry-wet transition. The dry season presented higher nutrient use efficiency and WUE (14.77 g m�� 2 mm�� 1). The highest ET occurred during the wet season (227 mm), and RUE was 81.48% higher than in the dry season. Overall, the cactus was a potential C sink during the three years of assessment (NEE: �� 377 g C m�� 2 year�� 1; GPP: 881 g C m�� 2 year�� 1). The results help us to understand that most of the Rn energy is used in the sensible heat flux (58% ratio). MenosAnthropogenic disturbances directly influence environmental processes and increase the concentration of carbon (C) in the atmosphere. Here, we compare the differences in the seasonality of the balance of carbon, energy, and radiation, as well as seek to identify the interrelationships between these environmental variables and their impact on the growth of Opuntia cactus. Data were acquired from an eddy covariance flux tower over a cactus crop agroecosystem (2019–2021) in the Brazilian semi-arid region. In addition, we use plant growth rates, carbon and nutrient stocks, evapotranspiration (ET) and water use efficiency (WUE), and radiation (RUE). We show that the closure of the surface energy balance was 71%, although there are minimal fluxes of available energy lost (29%) by unquantified processes. At all seasons, the highest net ecosystem CO2 exchange (NEE) rate was between 11:00–13:00 (�� 5.75 μmol m�� 2 s�� 1). During the dry and wet-dry season, there was the lowest daily gross primary productivity (GPP) (2.5 μmol m�� 2 s�� 1) and net radiation—Rn (217.97 W m�� 2). Ecosystem respiration was more expressive during the wet season (2.41 μmol m�� 2 s�� 1), and maximum diurnal value of 2.65 μmol m�� 2 s�� 1. Furthermore, the latent heat flux was higher during the wet season (114.68 W m�� 2) and lowered in the dry season (9.39 W m�� 2). The net assimilation rate showed higher values during the dry-wet transition. The dry season presented higher nutrient use efficiency and WUE (1... Mostrar Tudo |
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Palavras-Chave: |
Agroecossistema; Cacto de sequeiro; Concentração de carbono; Covariância de redemoinho; Opuntia cactus; Planta CAM; Semiárido; Sumidouro ou fonte de carbono; Troca líquida de CO2. |
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Thesagro: |
Caatinga; Cacto; Carbono; Ecossistema; Evapotranspiração. |
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Thesaurus Nal: |
Evapotranspiration; Opuntia. |
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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/doc/1161040/1/Sink-or-carbon-source-how-the-Opuntia-cactus-agroecosystem-interacts-in-the-use-of-carbon-nutrients-and-radiation-in-the-Brazilian-semi-arid-region.pdf
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Marc: |
LEADER 03353naa a2200445 a 4500
001 2161040
005 2024-01-23
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jhydrol.2023.130121$2DOI
100 1 $aJARDIM, A. M. da R. F.
245 $aSink or carbon source? how the Opuntia cactus agroecosystem interacts in the use of carbon, nutrients and radiation in the Brazilian semi-arid region.$h[electronic resource]
260 $c2023
520 $aAnthropogenic disturbances directly influence environmental processes and increase the concentration of carbon (C) in the atmosphere. Here, we compare the differences in the seasonality of the balance of carbon, energy, and radiation, as well as seek to identify the interrelationships between these environmental variables and their impact on the growth of Opuntia cactus. Data were acquired from an eddy covariance flux tower over a cactus crop agroecosystem (2019–2021) in the Brazilian semi-arid region. In addition, we use plant growth rates, carbon and nutrient stocks, evapotranspiration (ET) and water use efficiency (WUE), and radiation (RUE). We show that the closure of the surface energy balance was 71%, although there are minimal fluxes of available energy lost (29%) by unquantified processes. At all seasons, the highest net ecosystem CO2 exchange (NEE) rate was between 11:00–13:00 (�� 5.75 μmol m�� 2 s�� 1). During the dry and wet-dry season, there was the lowest daily gross primary productivity (GPP) (2.5 μmol m�� 2 s�� 1) and net radiation—Rn (217.97 W m�� 2). Ecosystem respiration was more expressive during the wet season (2.41 μmol m�� 2 s�� 1), and maximum diurnal value of 2.65 μmol m�� 2 s�� 1. Furthermore, the latent heat flux was higher during the wet season (114.68 W m�� 2) and lowered in the dry season (9.39 W m�� 2). The net assimilation rate showed higher values during the dry-wet transition. The dry season presented higher nutrient use efficiency and WUE (14.77 g m�� 2 mm�� 1). The highest ET occurred during the wet season (227 mm), and RUE was 81.48% higher than in the dry season. Overall, the cactus was a potential C sink during the three years of assessment (NEE: �� 377 g C m�� 2 year�� 1; GPP: 881 g C m�� 2 year�� 1). The results help us to understand that most of the Rn energy is used in the sensible heat flux (58% ratio).
650 $aEvapotranspiration
650 $aOpuntia
650 $aCaatinga
650 $aCacto
650 $aCarbono
650 $aEcossistema
650 $aEvapotranspiração
653 $aAgroecossistema
653 $aCacto de sequeiro
653 $aConcentração de carbono
653 $aCovariância de redemoinho
653 $aOpuntia cactus
653 $aPlanta CAM
653 $aSemiárido
653 $aSumidouro ou fonte de carbono
653 $aTroca líquida de CO2
700 1 $aMORAIS, J. E. F. de
700 1 $aSOUZA, L. S. B. de
700 1 $aMARIN, F. R.
700 1 $aMOURA, M. S. B. de
700 1 $aMORELLATO, L. P. C.
700 1 $aMONTENEGRO, A. A. de A.
700 1 $aOMETTO, J. P. H. B.
700 1 $aLIMA, J. L. M. P. de
700 1 $aDUBEUX JÚNIOR, J. C. B.
700 1 $aSILVA, T. G. F. da
773 $tJournal of Hydrology$gv. 625, 130121, 2023.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Biblioteca |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Florestas. |
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Data corrente: |
29/07/2021 |
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Data da última atualização: |
29/07/2021 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
BARROS, M. de M.; CARVALHO, M. T. de M.; SANTOS, A. da S.; PACHECO, A. R.; OLIVEIRA, S. M. de; CALIL, F. N. |
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Afiliação: |
MALLÚ DE MENDONÇA BARROS, bolsista CNPAF; MARCIA THAIS DE MELO CARVALHO, CNPAF; ADRIANA DA SILVA SANTOS, INSTITUTO FEDERAL GOIANO, Urutaí-GO; ABILIO RODRIGUES PACHECO, CNPF; SÉRGIO MARTINS DE OLIVEIRA, FACULDADE DE QUIRINÓPOLIS-GO; FRANCINE NEVES CALIL, UNIVERSIDADE FEDERAL DE GOIÁS. |
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Título: |
Análise da rede de governança e da percepção de um grupo de produtores rurais sobre a implementação do Plano ABC em Goiás. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2021. |
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Páginas: |
14 p. |
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Série: |
(Embrapa Arroz e Feijão. Comunicado técnico, 258). |
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ISSN: |
1678-961X |
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Idioma: |
Português |
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Conteúdo: |
Apresentamos neste trabalho os resultados de estudo conduzido com o objetivo de analisar o papel da governança na implementação do Plano ABC em Goiás, desencadeando na avaliação da percepção de produtores rurais sobre o plano e a adoção da tecnologia ILPF no município de Quirinópolis, GO. |
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Palavras-Chave: |
Emissõ de carbono; ILPF; Integração lavoura-pecuária-floresta; Plano ABC; Quirinópolis-GO. |
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Thesagro: |
Adoção de Inovações; Carbono; Mudança Climática; Políticas Públicas; Produtor; Transferência de Tecnologia. |
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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/224696/1/cot-258.pdf
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Marc: |
LEADER 01375nam a2200337 a 4500
001 2133151
005 2021-07-29
008 2021 bl uuuu u0uu1 u #d
022 $a1678-961X
100 1 $aBARROS, M. de M.
245 $aAnálise da rede de governança e da percepção de um grupo de produtores rurais sobre a implementação do Plano ABC em Goiás.$h[electronic resource]
260 $aSanto Antônio de Goiás: Embrapa Arroz e Feijão$c2021
300 $a14 p.
490 $a(Embrapa Arroz e Feijão. Comunicado técnico, 258).
520 $aApresentamos neste trabalho os resultados de estudo conduzido com o objetivo de analisar o papel da governança na implementação do Plano ABC em Goiás, desencadeando na avaliação da percepção de produtores rurais sobre o plano e a adoção da tecnologia ILPF no município de Quirinópolis, GO.
650 $aAdoção de Inovações
650 $aCarbono
650 $aMudança Climática
650 $aPolíticas Públicas
650 $aProdutor
650 $aTransferência de Tecnologia
653 $aEmissõ de carbono
653 $aILPF
653 $aIntegração lavoura-pecuária-floresta
653 $aPlano ABC
653 $aQuirinópolis-GO
700 1 $aCARVALHO, M. T. de M.
700 1 $aSANTOS, A. da S.
700 1 $aPACHECO, A. R.
700 1 $aOLIVEIRA, S. M. de
700 1 $aCALIL, F. N.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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