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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. |
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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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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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| Registros recuperados : 61 | |
| 5. |  | DOMINGUES, A. F. N.; CARVALHO, A. V.; ROSA, D. S. Determinação de matérias estranhas em farinhas de mandioca comercializadas em Belém-PA. In: ENCONTRO NACIONAL, 20.; CONGRESSO LATINO AMERICANO DE ANALISTAS DE ALIMENTOS, 6., 2017, Belém, PA. Segurança e qualidade de alimentos. Belém, PA: LACEN: UFPA, 2017. 1 CD-ROM. ENAAL. Seção Trabalhos. Ref. 2821.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 7. | | QUEIROZ, J. A. L. de; SANTOS, J. de A. dos; NÓBREGA, A. P.; SANTA ROSA, D. Açaí, banana e citros - ABC da fruticultura familiar das comunidades indígenas de Oiapoque. In: CONGRESSO DA ASSOCIAÇÃO LATINO AMERICANA DE SOCIOLOGIA RURAL, 9., 2014, Cidade do México. Sociedades Rurais Latino Americanas: diversidades, contrastes e alternativas. [Buenos Aires]: ALASRU, 2014.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amapá. |
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| 8. | | QUEIROZ, J. A. L. de; SANTOS, J. de A. dos; NÓBREGA, A. P.; SANTA ROSA, D. Açaí, banana e citros - ABC da fruticultura familiar das comunidades indígenas de Oiapoque. In: CONGRESO DE LA ASOCIACIÓN LATINOAMERICANA DE SOCIOLOGIA RURAL, 9., 2014, Ciudad de México. Sociedades rurales latinoamericanas: diversidades, contrastes y alternativas: memorias. [Buenos Aires]: ALASRU, 2014.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 9. | | LIMA, S. do C.; RIBEIRO, A. G.; SANTOS, M. A. dos; ROSA, D. B. Aspectos ambientais da ocupacao dos cerrados na regiao de Irai de Minas, area do PRODECER - I. In: SIMPOSIO SOBRE O CERRADO, 8.; INTERNATIONAL SYMPOSIUM ON TROPICAL SAVANNAS, 1., 1996, Brasilia, DF. Biodiversidade e producao sustentavel de alimentos e fibras nos Cerrados: anais... Planaltina: EMBRAPA-CPAC, 1996. p.230-233.| Biblioteca(s): Embrapa Cerrados. |
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| 10. | | POERSCH, N. L.; RIBEIRO, N. D.; ROSA, D. P.; POSSOBOM, M. T. D. F. Genetic control of potassium content of common bean seeds. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 46, n. 6, p. 626-632, jun. 2011 Título em português: Controle genético do teor de potássio em sementes de feijão.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 13. | | SCHWAB, S.; SANTOS, C. dos; SOUZA, D. de; ROSA, D.; BALDANI, J. I. Development of a bacterial cell enrichment method for the analysis of the endophytic microbiota in sugarcane stems. In: RHIZOSPHERE, 4., 2015, Maastricht, The Netherlands. Stretching the interface of life. Wageningen: Center for Soil Ecology, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 15. | | VILELA, J. dos S.; RIBEIRO, J. A.; GOULART, C.; ROSA, D. S.; FLORES CANTILLANO, R. F. Qualidade pós-colheita de amoras-pretas 'Tupy' conservadas em diferentes sistemas de armazenamento. In: Workshop de Compostos Bioativos & Qualidade de Alimentos , 2., 2018, Santa Maria, Anais... Santa Maria: UFSM, CCR, Departamento de Tecnologia e Ciência dos Alimentos Programa de Pós-Graduação em Ciência e Tecnologia Dos Alimentos. 2018.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 16. | | MEDEIROS, C. H.; SIGNORINI, C. B.; ROSA, D. S. B. da; CANUTO, K. M.; RODRIGUES, T. H. S.; SCHIEDECK, G. Alelopatia do óleo essencial de diferentes espécies de manjericão na germinação de tomate. In: CONGRESSO DE INICIAÇÃO CIENTÍFICA, 23.; ENCONTRO DE PÓS-GRADUAÇÃO, 16., 2014, Pelotas. [Anais.]. Pelotas: UFPel, 2014.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 17. | | SIGNORINI, C. B.; MEDEIROS, C. H.; ROSA, D. S. B. da; CANUTO, K. M.; RODRIGUES, T. H. S.; SCHIEDECK, G. Ação alelopática dos óleos essenciais de duas espécies de manjerição sobre germinação de alface (Lactuca sativa). In: CONGRESSO DE INICIAÇÃO CIENTÍFICA, 23.; ENCONTRO DE PÓS-GRADUAÇÃO, 16., 2014, Pelotas. [Anais.]. Pelotas: UFPel, 2014.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 18. | | BRUNETTO, G.; AMBROSINI, V. G.; ROSA, D. J.; MELO, G. W. B. de; COMIN, J. J.; SIMÃO, D. G. Anatomia de raízes de videiras jovens submetidas a doses de cobre e de calcário. In: Congresso Brasileiro de Ciência do Solo, 35., 2015, Natal, RG. O solo e suas múltiplas funções. Anais... Natal, RG, n. 359, ago. 2015.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 20. | | ROSA, D. S.; FLORES CANTILLANO, R. F.; GOULART, C.; RIBEIRO, J. A.; VILELA, J, S.; BONOW, S.; MARCHI, P. M. Caracterização físico-quimica de genótipos de morango. In: MOSTRA DE INICIAÇÃO CIENTÍFICA CONGRESSO REGIONAL DE ESTUDANTES DE ENGENHARIA QUIMICA, 23., 2018, Bagé. Resumos. Bagé: COREEG, 2018.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| Registros recuperados : 61 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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