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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
28/06/2012 |
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Data da última atualização: |
28/06/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, H. A. de; MARCELO, A. V.; CENTURION, J. F. |
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Afiliação: |
HENRIQUE ANTUNES DE SOUZA, CNPC; Adolfo Valente Marcelo, Laboratório de Análises e Consultoria Agrícola LTDA - São José do Rio Preto- SP.; José Frederico Centurion, Faculdade de Ciência Agrárias e Veterinárias, Universidade Estadual Paulista “Júlio de Mesquita Filho”, Jaboticabal-SP. |
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Título: |
Carbono orgânico e agregação de um Latossolo Vermelho com colheita mecanizada de cana-de-açúcar. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Revista Ciência Agronômica, v. 43, n. 4, p. 658-663, out-dez, 2012. |
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Idioma: |
Português |
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Conteúdo: |
RESUMO - O uso intensivo dos solos com o cultivo da cana-de-açúcar modifica significativamente as propriedades físicas do solo. Assim, objetivou-se avaliar o efeito do manejo da cana-de-açúcar com colheita mecanizada sobre a agregação de um Latossolo Vermelho distrófico típico de textura argilosa, situado em Guariba (SP). Foram selecionadas quatro situações (ciclos) com manejo de cana-de-açúcar colhida mecanicamente sem prévia queima: cana-planta e cana-soca de primeiro, segundo e terceiro cortes. Nas camadas de 0-0,10; 0,10-0,20 e 0,20-0,30 m de profundidade foram avaliados: diâmetro médio ponderado dos agregados (DMP), teores e estoques de carbono orgânico do solo. O manejo da cana-de-açúcar com colheita mecanizada influencia o DMP do solo, cujos valores são maiores no manejo envolvendo cana-planta e reduzem com o passar dos anos. Com o aumento da profundidade do solo, os estoques de carbono são mais relacionados à densidade do solo do que aos teores de carbono. Organic carbon and aggregation in a oxisol in mechanized harvesting of sugarcane. Abstract: The intensive use of land for the cultivation of sugarcane significantly modifies the physical properties of the soil. Therefore, the objective was to evaluate the effect of sugarcane management with mechanized harvesting on the aggregation of a typical Oxisol with a clay-like texture located in Guariba, São Paulo. With the sugarcane harvested mechanically and without prior burning, four different situations (cycles) were selected: plant cane, and first, second and third-cutting ratoon cane. Layers at a depth of 0 to 0.1, 0.1 to 0.2 and 0.2 to 0.3 m were evaluated for weighted mean diameter of the aggregates (WMD), and levels and stocks of organic carbon in the soil. Management of cane sugar with mechanized harvesting influences the soil WMD, whose values are greater for the plant cane and go down over the years. With the increase in soil depth, carbon stocks are more related to soil bulk density than to the carbon content. MenosRESUMO - O uso intensivo dos solos com o cultivo da cana-de-açúcar modifica significativamente as propriedades físicas do solo. Assim, objetivou-se avaliar o efeito do manejo da cana-de-açúcar com colheita mecanizada sobre a agregação de um Latossolo Vermelho distrófico típico de textura argilosa, situado em Guariba (SP). Foram selecionadas quatro situações (ciclos) com manejo de cana-de-açúcar colhida mecanicamente sem prévia queima: cana-planta e cana-soca de primeiro, segundo e terceiro cortes. Nas camadas de 0-0,10; 0,10-0,20 e 0,20-0,30 m de profundidade foram avaliados: diâmetro médio ponderado dos agregados (DMP), teores e estoques de carbono orgânico do solo. O manejo da cana-de-açúcar com colheita mecanizada influencia o DMP do solo, cujos valores são maiores no manejo envolvendo cana-planta e reduzem com o passar dos anos. Com o aumento da profundidade do solo, os estoques de carbono são mais relacionados à densidade do solo do que aos teores de carbono. Organic carbon and aggregation in a oxisol in mechanized harvesting of sugarcane. Abstract: The intensive use of land for the cultivation of sugarcane significantly modifies the physical properties of the soil. Therefore, the objective was to evaluate the effect of sugarcane management with mechanized harvesting on the aggregation of a typical Oxisol with a clay-like texture located in Guariba, São Paulo. With the sugarcane harvested mechanically and without prior burning, four different situations (cycles) were se... Mostrar Tudo |
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Palavras-Chave: |
Atributos físicos; Cana-de-açúcar; Carbon stock; DMP; Estoque de carbono; Physical attributes; WMD. |
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Thesagro: |
Saccharum Officinarum. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/61498/1/API-Carbono-organico.pdf
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Marc: |
LEADER 02760naa a2200241 a 4500
001 1927276
005 2012-06-28
008 2012 bl uuuu u00u1 u #d
100 1 $aSOUZA, H. A. de
245 $aCarbono orgânico e agregação de um Latossolo Vermelho com colheita mecanizada de cana-de-açúcar.$h[electronic resource]
260 $c2012
520 $aRESUMO - O uso intensivo dos solos com o cultivo da cana-de-açúcar modifica significativamente as propriedades físicas do solo. Assim, objetivou-se avaliar o efeito do manejo da cana-de-açúcar com colheita mecanizada sobre a agregação de um Latossolo Vermelho distrófico típico de textura argilosa, situado em Guariba (SP). Foram selecionadas quatro situações (ciclos) com manejo de cana-de-açúcar colhida mecanicamente sem prévia queima: cana-planta e cana-soca de primeiro, segundo e terceiro cortes. Nas camadas de 0-0,10; 0,10-0,20 e 0,20-0,30 m de profundidade foram avaliados: diâmetro médio ponderado dos agregados (DMP), teores e estoques de carbono orgânico do solo. O manejo da cana-de-açúcar com colheita mecanizada influencia o DMP do solo, cujos valores são maiores no manejo envolvendo cana-planta e reduzem com o passar dos anos. Com o aumento da profundidade do solo, os estoques de carbono são mais relacionados à densidade do solo do que aos teores de carbono. Organic carbon and aggregation in a oxisol in mechanized harvesting of sugarcane. Abstract: The intensive use of land for the cultivation of sugarcane significantly modifies the physical properties of the soil. Therefore, the objective was to evaluate the effect of sugarcane management with mechanized harvesting on the aggregation of a typical Oxisol with a clay-like texture located in Guariba, São Paulo. With the sugarcane harvested mechanically and without prior burning, four different situations (cycles) were selected: plant cane, and first, second and third-cutting ratoon cane. Layers at a depth of 0 to 0.1, 0.1 to 0.2 and 0.2 to 0.3 m were evaluated for weighted mean diameter of the aggregates (WMD), and levels and stocks of organic carbon in the soil. Management of cane sugar with mechanized harvesting influences the soil WMD, whose values are greater for the plant cane and go down over the years. With the increase in soil depth, carbon stocks are more related to soil bulk density than to the carbon content.
650 $aSaccharum Officinarum
653 $aAtributos físicos
653 $aCana-de-açúcar
653 $aCarbon stock
653 $aDMP
653 $aEstoque de carbono
653 $aPhysical attributes
653 $aWMD
700 1 $aMARCELO, A. V.
700 1 $aCENTURION, J. F.
773 $tRevista Ciência Agronômica$gv. 43, n. 4, p. 658-663, out-dez, 2012.
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Embrapa Caprinos e Ovinos (CNPC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
15/02/2019 |
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Data da última atualização: |
19/02/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
RAKOCEVIC, M.; RIBEIRO, R. V.; MARCHIORI, P. E. R.; FILIZOLA, H. F.; BATISTA, E. R. |
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Afiliação: |
MIROSLAVA RAKOCEVIC; RAFAEL VASCONCELOS RIBEIRO, IB-UNICAMP; PAULO EDUARDO RIBEIRO MARCHIORI, UFLA; HELOISA FERREIRA FILIZOLA, CNPMA; EUNICE REIS BATISTA, CNPMA. |
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Título: |
Structural and functional changes in coffee trees after 4 years under free air CO2 enrichment. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Annals of Botany, v. 121, n. 5, p. 1065-1078, 2018. |
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DOI: |
https://doi.org/10.1093/aob/mcy011 |
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Idioma: |
Inglês |
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Conteúdo: |
Background and Aims: Climate forecasts suggest that [CO2] in the atmosphere will continue to increase. Structural and ecophysiological responses to elevated air [CO2] (e[CO2]) in tree species are contradictory due to species-dependent responses and relatively short-term experiments. It was hypothesized that long-term exposure (4 year) to e[CO2] would change canopy structure and function of Coffea arabica trees. Methods: Coffee plants were grown in a FACE (free air CO2 enrichment) facility under two air [CO2]: actual and elevated (actual + approx. 200 ?L CO2 L-1). Plants were codified following the VPlants methodology to obtain coffee mock-ups. Plant canopies were separated into three 50 cm thick layers over a vertical profile to evaluate their structure and photosynthesis, using functional-structural plant modelling. Key Results: Leaf area was strongly reduced on the bottom and upper canopy layers, and increased soil carbon concentration suggested changes in carbon partitioning of coffee trees under e[CO2]. Increased air [CO2] stimulated stomatal conductance and leaf photosynthesis at the middle and upper canopy layers, increasing water-use efficiency. Under e[CO2], plants showed reduced diameter of the second-order axes and higher investment in the youngest third to fifth-order axes. Conclusions: The responses of Arabica coffee grown under long-term exposure to e[CO2] integrated structural and functional modifications, which balanced leaf area loss through improvements in leaf and whole-plant photosynthesis. MenosBackground and Aims: Climate forecasts suggest that [CO2] in the atmosphere will continue to increase. Structural and ecophysiological responses to elevated air [CO2] (e[CO2]) in tree species are contradictory due to species-dependent responses and relatively short-term experiments. It was hypothesized that long-term exposure (4 year) to e[CO2] would change canopy structure and function of Coffea arabica trees. Methods: Coffee plants were grown in a FACE (free air CO2 enrichment) facility under two air [CO2]: actual and elevated (actual + approx. 200 ?L CO2 L-1). Plants were codified following the VPlants methodology to obtain coffee mock-ups. Plant canopies were separated into three 50 cm thick layers over a vertical profile to evaluate their structure and photosynthesis, using functional-structural plant modelling. Key Results: Leaf area was strongly reduced on the bottom and upper canopy layers, and increased soil carbon concentration suggested changes in carbon partitioning of coffee trees under e[CO2]. Increased air [CO2] stimulated stomatal conductance and leaf photosynthesis at the middle and upper canopy layers, increasing water-use efficiency. Under e[CO2], plants showed reduced diameter of the second-order axes and higher investment in the youngest third to fifth-order axes. Conclusions: The responses of Arabica coffee grown under long-term exposure to e[CO2] integrated structural and functional modifications, which balanced leaf area loss through improvements in l... Mostrar Tudo |
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Thesagro: |
Área Foliar; Café; Dióxido de Carbono. |
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Thesaurus NAL: |
Carbon dioxide enrichment; Climate change; Coffea; Leaf area; Plant architecture; Stomatal conductance; Transpiration. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02423naa a2200301 a 4500
001 2106099
005 2019-02-19
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1093/aob/mcy011$2DOI
100 1 $aRAKOCEVIC, M.
245 $aStructural and functional changes in coffee trees after 4 years under free air CO2 enrichment.$h[electronic resource]
260 $c2018
520 $aBackground and Aims: Climate forecasts suggest that [CO2] in the atmosphere will continue to increase. Structural and ecophysiological responses to elevated air [CO2] (e[CO2]) in tree species are contradictory due to species-dependent responses and relatively short-term experiments. It was hypothesized that long-term exposure (4 year) to e[CO2] would change canopy structure and function of Coffea arabica trees. Methods: Coffee plants were grown in a FACE (free air CO2 enrichment) facility under two air [CO2]: actual and elevated (actual + approx. 200 ?L CO2 L-1). Plants were codified following the VPlants methodology to obtain coffee mock-ups. Plant canopies were separated into three 50 cm thick layers over a vertical profile to evaluate their structure and photosynthesis, using functional-structural plant modelling. Key Results: Leaf area was strongly reduced on the bottom and upper canopy layers, and increased soil carbon concentration suggested changes in carbon partitioning of coffee trees under e[CO2]. Increased air [CO2] stimulated stomatal conductance and leaf photosynthesis at the middle and upper canopy layers, increasing water-use efficiency. Under e[CO2], plants showed reduced diameter of the second-order axes and higher investment in the youngest third to fifth-order axes. Conclusions: The responses of Arabica coffee grown under long-term exposure to e[CO2] integrated structural and functional modifications, which balanced leaf area loss through improvements in leaf and whole-plant photosynthesis.
650 $aCarbon dioxide enrichment
650 $aClimate change
650 $aCoffea
650 $aLeaf area
650 $aPlant architecture
650 $aStomatal conductance
650 $aTranspiration
650 $aÁrea Foliar
650 $aCafé
650 $aDióxido de Carbono
700 1 $aRIBEIRO, R. V.
700 1 $aMARCHIORI, P. E. R.
700 1 $aFILIZOLA, H. F.
700 1 $aBATISTA, E. R.
773 $tAnnals of Botany$gv. 121, n. 5, p. 1065-1078, 2018.
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