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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Clima Temperado; Embrapa Meio Ambiente. |
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Data corrente: |
06/12/2019 |
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Data da última atualização: |
06/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CABRAL, O. M. R.; FREITAS, H. C. de; CUADRA, S. V.; ANDRADE, C. A. de; RAMOS, N. P.; GRUTZMACHER, P.; GALDOS, M.; PACKER, A. P.; ROCHA, H. R. da; ROSSI, P. |
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Afiliação: |
OSVALDO MACHADO RODRIGUES CABRAL, CNPMA; HÉLBER CUSTÓDIO DE FREITAS, FC-UNESP; SANTIAGO VIANNA CUADRA, CPACT; CRISTIANO ALBERTO DE ANDRADE, CNPMA; NILZA PATRICIA RAMOS, CNPMA; PRISCILA GRUTZMACHER; MARCELO GALDOS, University of Leeds; ANA PAULA CONTADOR PACKER, CNPMA; HUMBERTO RIBEIRO DA ROCHA, IAG-USP; PAULO ROSSI, CNPMA. |
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Título: |
The sustainability of a sugarcane plantation in Brazil assessed by the eddy covariance fluxes of greenhouse gases. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Agricultural and Forest Meteorology, v. 282-283, Article 107864, 2020. |
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DOI: |
https://doi.org/10.1016/j.agrformet.2019.107864 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The sustainability of sugarcane farming for biofuel has recently become a subject of debate, because its expansion may contribute significantly to global climate change mitigation. Here we report greenhouse gases (GHG) fluxes, measured by the eddy covariance method, from a commercial scale rain-fed sugarcane plantation representative of the leading bioethanol production area in southeast Brazil. The measurements covered two harvests, during which the field received nitrogen fertilization and trash was not removed. The cumulative fluxes for nitrous oxide (N2O) (62.4 ± 1.3 and 52.3 ± 1.8 g N2OCO2 eq. m?2 for the first and second years, respectively) and methane (CH4) (12.1 ± 1.7 and 10.4 ± 2.3 g CH4CO2 eq. m?2 for the first and second years, respectively) were minor sources to the atmosphere in comparison with the net ecosystem exchange (NEE) of carbon dioxide (CO2), whose sink dominated the balances (?7643. ± 129. and -4615. ± 124. g CO2 m?2 for the first and second years, respectively). Compared to the first year, the observed NEE in the second year decreased by 40%, as it covered the first re-growth from the stubble (ratoon) and exhibited a shorter growth cycle than the first year (304 versus 390 days). The second year also included the partial decomposition of the trash remaining on the soil after the first harvest (1581 ± 301 g CO2 m?2). The net ecosystem carbon balances (NECB), obtained as the cumulative fluxes of GHGs and the stalk dry biomass removed in the harvests (4923 ± 459 and 3929 ± 352 g CO2 m?2 for the first and second years, respectively) were -2646 ± 459 and -623 ± 352 g CO2 m?2 for the first and second years, respectively. Although the yields in stalk fresh weight (SFW) were representative of the region (9.9 and 8.2 kg SFW m?2, in the first and second year respectively) other factors caused a decrease of 76% in NECB, stressing the importance of the CO2 balance (assimilation versus respiration). Nevertheless, this sugarcane agro-system was an overall carbon sink with the N2O and CH4 emitted totals being offset by the net carbon gain. MenosAbstract: The sustainability of sugarcane farming for biofuel has recently become a subject of debate, because its expansion may contribute significantly to global climate change mitigation. Here we report greenhouse gases (GHG) fluxes, measured by the eddy covariance method, from a commercial scale rain-fed sugarcane plantation representative of the leading bioethanol production area in southeast Brazil. The measurements covered two harvests, during which the field received nitrogen fertilization and trash was not removed. The cumulative fluxes for nitrous oxide (N2O) (62.4 ± 1.3 and 52.3 ± 1.8 g N2OCO2 eq. m?2 for the first and second years, respectively) and methane (CH4) (12.1 ± 1.7 and 10.4 ± 2.3 g CH4CO2 eq. m?2 for the first and second years, respectively) were minor sources to the atmosphere in comparison with the net ecosystem exchange (NEE) of carbon dioxide (CO2), whose sink dominated the balances (?7643. ± 129. and -4615. ± 124. g CO2 m?2 for the first and second years, respectively). Compared to the first year, the observed NEE in the second year decreased by 40%, as it covered the first re-growth from the stubble (ratoon) and exhibited a shorter growth cycle than the first year (304 versus 390 days). The second year also included the partial decomposition of the trash remaining on the soil after the first harvest (1581 ± 301 g CO2 m?2). The net ecosystem carbon balances (NECB), obtained as the cumulative fluxes of GHGs and the stalk dry biomass removed in the h... Mostrar Tudo |
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Palavras-Chave: |
Gases do efeito estufa; Óxido nitroso; Trash decomposition. |
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Thesagro: |
Biomassa; Cana de Açúcar; Dióxido de Carbono; Metano. |
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Thesaurus Nal: |
Biomass; Carbon dioxide; Greenhouse gas emissions; Methane; Nitrous oxide; Sugarcane. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03282naa a2200397 a 4500
001 2116149
005 2019-12-06
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.agrformet.2019.107864$2DOI
100 1 $aCABRAL, O. M. R.
245 $aThe sustainability of a sugarcane plantation in Brazil assessed by the eddy covariance fluxes of greenhouse gases.$h[electronic resource]
260 $c2020
520 $aAbstract: The sustainability of sugarcane farming for biofuel has recently become a subject of debate, because its expansion may contribute significantly to global climate change mitigation. Here we report greenhouse gases (GHG) fluxes, measured by the eddy covariance method, from a commercial scale rain-fed sugarcane plantation representative of the leading bioethanol production area in southeast Brazil. The measurements covered two harvests, during which the field received nitrogen fertilization and trash was not removed. The cumulative fluxes for nitrous oxide (N2O) (62.4 ± 1.3 and 52.3 ± 1.8 g N2OCO2 eq. m?2 for the first and second years, respectively) and methane (CH4) (12.1 ± 1.7 and 10.4 ± 2.3 g CH4CO2 eq. m?2 for the first and second years, respectively) were minor sources to the atmosphere in comparison with the net ecosystem exchange (NEE) of carbon dioxide (CO2), whose sink dominated the balances (?7643. ± 129. and -4615. ± 124. g CO2 m?2 for the first and second years, respectively). Compared to the first year, the observed NEE in the second year decreased by 40%, as it covered the first re-growth from the stubble (ratoon) and exhibited a shorter growth cycle than the first year (304 versus 390 days). The second year also included the partial decomposition of the trash remaining on the soil after the first harvest (1581 ± 301 g CO2 m?2). The net ecosystem carbon balances (NECB), obtained as the cumulative fluxes of GHGs and the stalk dry biomass removed in the harvests (4923 ± 459 and 3929 ± 352 g CO2 m?2 for the first and second years, respectively) were -2646 ± 459 and -623 ± 352 g CO2 m?2 for the first and second years, respectively. Although the yields in stalk fresh weight (SFW) were representative of the region (9.9 and 8.2 kg SFW m?2, in the first and second year respectively) other factors caused a decrease of 76% in NECB, stressing the importance of the CO2 balance (assimilation versus respiration). Nevertheless, this sugarcane agro-system was an overall carbon sink with the N2O and CH4 emitted totals being offset by the net carbon gain.
650 $aBiomass
650 $aCarbon dioxide
650 $aGreenhouse gas emissions
650 $aMethane
650 $aNitrous oxide
650 $aSugarcane
650 $aBiomassa
650 $aCana de Açúcar
650 $aDióxido de Carbono
650 $aMetano
653 $aGases do efeito estufa
653 $aÓxido nitroso
653 $aTrash decomposition
700 1 $aFREITAS, H. C. de
700 1 $aCUADRA, S. V.
700 1 $aANDRADE, C. A. de
700 1 $aRAMOS, N. P.
700 1 $aGRUTZMACHER, P.
700 1 $aGALDOS, M.
700 1 $aPACKER, A. P.
700 1 $aROCHA, H. R. da
700 1 $aROSSI, P.
773 $tAgricultural and Forest Meteorology$gv. 282-283, Article 107864, 2020.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
07/03/2018 |
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Data da última atualização: |
19/03/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
SILVA, T. G. F. da; ARAUJO, G. G. L. de; MOURA, M. S. B. de; SOUZA, L. S. B. de. |
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Afiliação: |
THIERES G. F. DA SILVA, Federal Rural University of Pernambuco, Academic Unit of Serra Talhada; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; MAGNA SOELMA BESERRA DE MOURA, CPATSA; LUCIANA S. B. DE SOUZA, Federal Rural University of Pernambuco, Academic Unit of Serra Talhada. |
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Título: |
Agrometeorological research on forage cactus and its advances in Brazil. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Amazonian Journal of Plant Research, v. 2, p. 45-68, 2017. |
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DOI: |
10.26545/b00006x |
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Idioma: |
Inglês |
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Conteúdo: |
Despite being more resilient than agriculture, the performance of the livestock sector depends greatly on the seasonality of the weather variables, which directly affect the supply and quality of the forage. Many forage species have an accumulation of biomass limited to the rainy season, which restricts the activity. Agrometeorology is the science that studies the effect of meteorological and climatological conditions on the agricultural performance of the species and field activities. The progress of this science to a crop allows the understanding of its interaction with the environment and the measurement of technical data, valuable for the improvement of agricultural resilience, planning, decision making, and expansion of financing and rural insurance policies. As a result, it is important to understand the plant-environment interaction to identify the factors that most influence the performance of crops, to elaborate the climatic risk zoning. Knowledge of phenology improves agricultural management and determines the cutting time. The definition of the crop coefficient helps in water management. The application practices of improving agricultural resilience such as selecting the most suitable cultivars, mulching, intercropping and minimum irrigation use ensure maximization of yield. This knowledge was recently raised for the forage cactus, the most cultivated forage cactus in the world. Hence, the objective of this study was to review the advances of agrometeorology information in Brazil on forage cactus for optimization of irrigation management and maximization productivity of the crop. MenosDespite being more resilient than agriculture, the performance of the livestock sector depends greatly on the seasonality of the weather variables, which directly affect the supply and quality of the forage. Many forage species have an accumulation of biomass limited to the rainy season, which restricts the activity. Agrometeorology is the science that studies the effect of meteorological and climatological conditions on the agricultural performance of the species and field activities. The progress of this science to a crop allows the understanding of its interaction with the environment and the measurement of technical data, valuable for the improvement of agricultural resilience, planning, decision making, and expansion of financing and rural insurance policies. As a result, it is important to understand the plant-environment interaction to identify the factors that most influence the performance of crops, to elaborate the climatic risk zoning. Knowledge of phenology improves agricultural management and determines the cutting time. The definition of the crop coefficient helps in water management. The application practices of improving agricultural resilience such as selecting the most suitable cultivars, mulching, intercropping and minimum irrigation use ensure maximization of yield. This knowledge was recently raised for the forage cactus, the most cultivated forage cactus in the world. Hence, the objective of this study was to review the advances of agrometeorology infor... Mostrar Tudo |
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Palavras-Chave: |
Cacto forrageiro; Gerenciamento de irrigação; Resiliência agrícola; Variáveis meteorológicas. |
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Thesagro: |
Cacto; Pastagem; Produção animal. |
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Thesaurus NAL: |
Animal production. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02418naa a2200265 a 4500
001 2088715
005 2018-03-19
008 2017 bl uuuu u00u1 u #d
024 7 $a10.26545/b00006x$2DOI
100 1 $aSILVA, T. G. F. da
245 $aAgrometeorological research on forage cactus and its advances in Brazil.$h[electronic resource]
260 $c2017
520 $aDespite being more resilient than agriculture, the performance of the livestock sector depends greatly on the seasonality of the weather variables, which directly affect the supply and quality of the forage. Many forage species have an accumulation of biomass limited to the rainy season, which restricts the activity. Agrometeorology is the science that studies the effect of meteorological and climatological conditions on the agricultural performance of the species and field activities. The progress of this science to a crop allows the understanding of its interaction with the environment and the measurement of technical data, valuable for the improvement of agricultural resilience, planning, decision making, and expansion of financing and rural insurance policies. As a result, it is important to understand the plant-environment interaction to identify the factors that most influence the performance of crops, to elaborate the climatic risk zoning. Knowledge of phenology improves agricultural management and determines the cutting time. The definition of the crop coefficient helps in water management. The application practices of improving agricultural resilience such as selecting the most suitable cultivars, mulching, intercropping and minimum irrigation use ensure maximization of yield. This knowledge was recently raised for the forage cactus, the most cultivated forage cactus in the world. Hence, the objective of this study was to review the advances of agrometeorology information in Brazil on forage cactus for optimization of irrigation management and maximization productivity of the crop.
650 $aAnimal production
650 $aCacto
650 $aPastagem
650 $aProdução animal
653 $aCacto forrageiro
653 $aGerenciamento de irrigação
653 $aResiliência agrícola
653 $aVariáveis meteorológicas
700 1 $aARAUJO, G. G. L. de
700 1 $aMOURA, M. S. B. de
700 1 $aSOUZA, L. S. B. de
773 $tAmazonian Journal of Plant Research$gv. 2, p. 45-68, 2017.
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