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| Registros recuperados : 40 | |
| 4. |  | MAYER, E. T.; FUKE, G.; NÖRNBERG, J. L.; MINELLA, E. Caracterização nutricional de grãos integrais e descascados de cultivares de cevada. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 42, n. 11, p. 1635-1640, nov. 2007.| Biblioteca(s): Embrapa Trigo. |
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| 5. | | MAYER, E. T.; FUKER, G.; NÖRNBERG, J. L.; MINELLA, E. Caracterização nutricional de grãos integrais e descascados de cultivares de cevada Pesquisa Agropecuária Brasileira, Brasília, DF, v. 42, n. 11, p. 1635-1640, nov. 2007 Título em inglês: Chemical characterization of covered and hulness barley cultivars.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 11. | | NEUMANN, M.; RESTLE, J.; NORNBERG, J. L.; OLIBONI, R.; PELLEGRINI, L. G. de; FARIA, M. V.; OLIVEIRA, M. R. Efeito associativo do espaçamento entre linhas de plantio, densidade de plantas e idade sobre o desempenho vegetativo e qualitativo do sorgo forrageiro. Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 7, n. 2, p. 165-181, 2008.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 12. | | FUKE, G.; BORTOLOTTI, C. M.; NOVACK, M. M. E.; ZIMMERMANN, A. M.; NöRNBERG, J. L.; MINELLA, E. Efeito da incorporação de farinhas de cevada sobre as características sensoriais e de qualidade do pão de forma. In: SIMPÓSIO LATINO AMERICANO DE CIÊNCIA DE ALIMENTOS, 8., 2009, Campinas. [Resumos...]. Campinas: UNICAMP: SBCTA, 2009. 1 p.| Biblioteca(s): Embrapa Trigo. |
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| 13. | | VARGAS, D. P. de; NORNBERG, J. L.; SCHEIBLER, R. B.; SCHAFHAUSER JUNIOR, J.; RIZZO, F. A.; WAGNER, R. Qualidade e potencial nutracêutico do leite bovino em diferentes sistemas de produção e estações do ano. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 50, n. 12, p. 1208-1219, dez. 2015.| Biblioteca(s): Embrapa Clima Temperado; Embrapa Unidades Centrais. |
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| 14. | | BEZERRA, A. S.; FUKE, G.; NOVACK, M. M. E.; NöRNBERG, J. L.; CARVALHO, L. M.; LIMA, F. O.; MINELLA, E. Determinação de fenóis totais em variedades de cevada. In: SIMPÓSIO LATINO AMERICANO DE CIÊNCIA DE ALIMENTOS, 8., 2009, Campinas. [Resumos...]. Campinas: UNICAMP: SBCTA, 2009. 2 p.| Biblioteca(s): Embrapa Trigo. |
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| 15. | | KOLLING, G. J.; ZANELA, M. B.; NÖRNBERG, J. L.; RIBEIRO, M. E. R.; RODRIGUES, I. L.; NOVACK, M. E. Perfil de ácidos graxos no leite de búfala da raça Murrah¹. In: CONGRESSO INTERNACIONAL DO LEITE, 11.; WORKSHOP SOBRE POLÍTICAS PÚBLICAS, 11.; SIMPÓSIO DE SUSTENTABILIDADE DA ATIVIDADE LEITEIRA, 12., 2012, Goiânia. Anais... Juiz de Fora: Embrapa Gado de Leite, 2012.| Biblioteca(s): Embrapa Clima Temperado. |
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| 16. | | VELHO, J. P.; MÜHLBACH, P. R. F.; BARCELLOS, J. O. J.; NÖRNBERG, J. L.; GENRO, T. C. M.; VELHO, I. M. P. H.; ORQIS, M. G. Concentração energética de silagens de milho safrinha sob diferentes tempos de exposição ao ar antes da ensilagem. In: SEMINÁRIO NACIONAL MILHO SAFRINHA, 9., 2007, Dourados. Milho safrinha: rumo à estabilidade: anais... Dourados: Embrapa Agropecuária Oeste, 2007. p. 421-426. (Embrapa Agropecuária Oeste. Documentos, 89).| Biblioteca(s): Embrapa Pecuária Sul. |
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| 17. | | NEUMANN, M.; RESTLE, J.; BRONDANI, I. L.; NORNBERG, J. L.; MELLO, R. de O.; PELLEGRINI, L. G. de; SOUZA, A. N. M. de. Comportamento produtivo e custo de produção de híbridos de sorgo (Sorghum bicolor, L. Moench) para silagem. Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 2, n. 3, p. 43-54, set./dez.2003.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 18. | | NEUMANN, M.; RESTLE, J.; SOUZA, A. N. M. de; PELLEGRINI, L. G. de; ZANETTE, P. M.; NORNBERG, J. L.; SANDINI, I. E. Desempenho vegetativo e qualitativo do sorgo forrageiro (Sorghum bicolor X Sorghum sudanense) em manejo de cortes. Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 9, n. 3, p. 298-313, 2010.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 19. | | VELHO, J. P.; MÜHLBACH, P. R. F.; NÖRNBERG, J. L.; VELHO, I. M. P. H.; GENRO, T. C. M.; KESSLER, J. D. Composição bromatológica de silagens de milho produzidas com diferentes densidades de compactação. Revista Brasileira de Zootecnia, Viçosa, v. 36, n. 5, p. 1532-1538, set./out. 2007. Suplemento.| Biblioteca(s): Embrapa Pecuária Sul. |
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| 20. | | NEUMANN, M.; RESTLE, J.; NORNBERG, J. L.; ALVES FILHO, D. C.; MELLO, R. de O.; SOUZA, A. N. M. de; PELLEGRINI, L. G. de. Avaliação da qualidade e do valor nutritivo da silagem de híbridos de sorgo (Sorghum bicolor, L. Moench). Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 3, n. 1, p. 120-133, 2004.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 40 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Ocidental. Para informações adicionais entre em contato com cpaa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Pecuária Sul. |
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Data corrente: |
13/02/2020 |
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Data da última atualização: |
21/02/2020 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SMITH, M. N.; SCHITTI, J.; GONÇALVES, N.; MINOR, D.; ALMEIDA, D. R. A. de; ROCHA, D. G.; ARAGÓN, S.; MENIN, M.; GUEDES, M. C.; TONINI, H.; SILVA, K. E. da; ROSA, D. M.; NELSON, B. W.; CORDEIRO, C. L. O.; OLIVEIRA JUNIOR, R. C. de; SHAO, G.; SOUZA, M. S.; MCMAHON, S.; ALMEIDA, D.; ARAGÃO, L. E. O. C.; LIMA, N. Z. de; OLIVEIRA, G. de; ASSIS, R. L. de; CAMARGO, J. L.; MESQUITA, R. G.; SALESKA, S. R.; BRESHEARS, D. D.; COSTA, F. R. C.; STARK, S. C. |
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Afiliação: |
MARIELLE NATASHA SMITH, Michigan State University; JULIANA SCHITTI, INPA; NATHAN GONÇALVES, Michigan State University; DAVID MINOR, University of Maryland College Park; DANILO ROBERTI ALVES DE ALMEIDA, USP/ESALQ; DANIEL GOMES ROCHA, INPA; SUSAN ARAGÓN, UFOPA; MARCELO MENIN, UFAM; MARCELINO CARNEIRO GUEDES, CPAF-Amapá; HELIO TONINI, CPPSUL; KATIA EMIDIO DA SILVA, CPAA; DIOGO MARTINS ROSA, INPA; BRUCE W NELSON, INPA; CARLOS LEANDRO OLIVEIRA CORDEIRO, IIS; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; GANG SHAO, Michigan State University; MENDELL S. SOUZA, UFOPA; SEAN MCMAHON, Smithsonian Environmental Research Center (SERC); DANIEL ALMEIDA, UFOPA; LUIZ E. O. C. ARAGÃO, INPE; NICOLAS ZASLAVSKY DE LIMA, UFOPA; GABRIELA DE OLIVEIRA, University of Kansas; RAFAEL LEANDRO DE ASSIS, INPA; JOSÉ L. CAMARGO, INPA; RITA G MESQUITA, INPA; SCOTT R SALESKA, University of Arizona; DAVID D. BRESHEARS, University of Arizona; FLAVIA REGINA CAPELLOTTO COSTA, INPA; SCOTT C. STARK, Michigan State University. |
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Título: |
Variations in Amazonian forest canopy structure and light environments across environmental and disturbance gradients. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
In: AGU FALL MEETING, 2019, San Francisco. Anais... San Francisco: AGU, 2019. |
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Idioma: |
Inglês |
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Notas: |
Paper 499657. |
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Conteúdo: |
A critical problem in tropical forest ecology is understanding how vegetation structure and function vary over environmental gradients. The degree to which forest structure changes across the Amazon basin and the role of environmental variability in shaping forest structure and dynamics are poorly characterised, despite the importance of these forests for regional and global climate. To address these challenges, we connected 10 years of investigations to amass a large database of ground-based profiling canopy lidar (PCL) data from 297 Amazon forest plots across large-scale environmental and disturbance gradients. Mean annual precipitation varied from 1,963 to 3,159 mm, number of dry season months from 0 to 5, and plot soil types covered about half of the variation in phosphorus, exchangeable cation, and soil physical property values observed in Amazonia. We quantified detailed metrics of vertical and horizontal structure and canopy light environments. Forest structure varied considerably across plots; maximum canopy height ranged from 6.1 to 35.7 m, gap fraction from 0.00 to 0.36, LAI from 0.5 to 7.3, rugosity from 1.5 to 7.5 m, and the relative height of 50% light transmission from 0.3 to 0.8. Disturbed sites exhibited almost twice the level of variation (SD) to non-disturbed sites for many metrics. Vertical leaf area density (LAD) profiles also showed high between plot variability, especially at low and high relative canopy heights. Plots with similar LAD profiles sometimes exhibited different distributions of ?canopy photic environment layers??where canopy leaf area is separated into photic environment layers by depth from canopy surface. This demonstrates that LAD profiles alone are insufficient for characterising canopy environments, essential to light-driven regeneration and carbon cycle processes. In addition, we evaluated relationships between lidar metrics and environmental variables extracted from geospatial layers. Our dataset allows a unique and detailed multi-site analysis of canopy structure and environments across the Amazon, including regions with little or no lidar sampling. Examining how structural attributes alter across environmental gradients is critical to understanding how current and future climate influences Amazonian forest structure, function, and dynamics. MenosA critical problem in tropical forest ecology is understanding how vegetation structure and function vary over environmental gradients. The degree to which forest structure changes across the Amazon basin and the role of environmental variability in shaping forest structure and dynamics are poorly characterised, despite the importance of these forests for regional and global climate. To address these challenges, we connected 10 years of investigations to amass a large database of ground-based profiling canopy lidar (PCL) data from 297 Amazon forest plots across large-scale environmental and disturbance gradients. Mean annual precipitation varied from 1,963 to 3,159 mm, number of dry season months from 0 to 5, and plot soil types covered about half of the variation in phosphorus, exchangeable cation, and soil physical property values observed in Amazonia. We quantified detailed metrics of vertical and horizontal structure and canopy light environments. Forest structure varied considerably across plots; maximum canopy height ranged from 6.1 to 35.7 m, gap fraction from 0.00 to 0.36, LAI from 0.5 to 7.3, rugosity from 1.5 to 7.5 m, and the relative height of 50% light transmission from 0.3 to 0.8. Disturbed sites exhibited almost twice the level of variation (SD) to non-disturbed sites for many metrics. Vertical leaf area density (LAD) profiles also showed high between plot variability, especially at low and high relative canopy heights. Plots with similar LAD profiles sometime... Mostrar Tudo |
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Thesagro: |
Climatologia; Ecologia Florestal; Floresta Tropical. |
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Thesaurus NAL: |
Climatology; Forest ecology; Tropical forests. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 03844naa a2200541 a 4500
001 2120544
005 2020-02-21
008 2019 bl uuuu u00u1 u #d
100 1 $aSMITH, M. N.
245 $aVariations in Amazonian forest canopy structure and light environments across environmental and disturbance gradients.$h[electronic resource]
260 $c2019
500 $aPaper 499657.
520 $aA critical problem in tropical forest ecology is understanding how vegetation structure and function vary over environmental gradients. The degree to which forest structure changes across the Amazon basin and the role of environmental variability in shaping forest structure and dynamics are poorly characterised, despite the importance of these forests for regional and global climate. To address these challenges, we connected 10 years of investigations to amass a large database of ground-based profiling canopy lidar (PCL) data from 297 Amazon forest plots across large-scale environmental and disturbance gradients. Mean annual precipitation varied from 1,963 to 3,159 mm, number of dry season months from 0 to 5, and plot soil types covered about half of the variation in phosphorus, exchangeable cation, and soil physical property values observed in Amazonia. We quantified detailed metrics of vertical and horizontal structure and canopy light environments. Forest structure varied considerably across plots; maximum canopy height ranged from 6.1 to 35.7 m, gap fraction from 0.00 to 0.36, LAI from 0.5 to 7.3, rugosity from 1.5 to 7.5 m, and the relative height of 50% light transmission from 0.3 to 0.8. Disturbed sites exhibited almost twice the level of variation (SD) to non-disturbed sites for many metrics. Vertical leaf area density (LAD) profiles also showed high between plot variability, especially at low and high relative canopy heights. Plots with similar LAD profiles sometimes exhibited different distributions of ?canopy photic environment layers??where canopy leaf area is separated into photic environment layers by depth from canopy surface. This demonstrates that LAD profiles alone are insufficient for characterising canopy environments, essential to light-driven regeneration and carbon cycle processes. In addition, we evaluated relationships between lidar metrics and environmental variables extracted from geospatial layers. Our dataset allows a unique and detailed multi-site analysis of canopy structure and environments across the Amazon, including regions with little or no lidar sampling. Examining how structural attributes alter across environmental gradients is critical to understanding how current and future climate influences Amazonian forest structure, function, and dynamics.
650 $aClimatology
650 $aForest ecology
650 $aTropical forests
650 $aClimatologia
650 $aEcologia Florestal
650 $aFloresta Tropical
700 1 $aSCHITTI, J.
700 1 $aGONÇALVES, N.
700 1 $aMINOR, D.
700 1 $aALMEIDA, D. R. A. de
700 1 $aROCHA, D. G.
700 1 $aARAGÓN, S.
700 1 $aMENIN, M.
700 1 $aGUEDES, M. C.
700 1 $aTONINI, H.
700 1 $aSILVA, K. E. da
700 1 $aROSA, D. M.
700 1 $aNELSON, B. W.
700 1 $aCORDEIRO, C. L. O.
700 1 $aOLIVEIRA JUNIOR, R. C. de
700 1 $aSHAO, G.
700 1 $aSOUZA, M. S.
700 1 $aMCMAHON, S.
700 1 $aALMEIDA, D.
700 1 $aARAGÃO, L. E. O. C.
700 1 $aLIMA, N. Z. de
700 1 $aOLIVEIRA, G. de
700 1 $aASSIS, R. L. de
700 1 $aCAMARGO, J. L.
700 1 $aMESQUITA, R. G.
700 1 $aSALESKA, S. R.
700 1 $aBRESHEARS, D. D.
700 1 $aCOSTA, F. R. C.
700 1 $aSTARK, S. C.
773 $tIn: AGU FALL MEETING, 2019, San Francisco. Anais... San Francisco: AGU, 2019.
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