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Registro Completo |
Biblioteca(s): |
Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Pecuária Sul. |
Data corrente: |
06/02/2023 |
Data da última atualização: |
07/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SMITH, M. N.; STARK, S. C.; TAYLOR, T. C.; SCHIETTI, J.; ALMEIDA, D. R. A. de; ARAGÓN, S.; TORRALVO, K.; LIMA, A. P.; OLIVEIRA, G. de; ASSIS, R. L. de; LEITOLD, V.; PONTES-LOPES, A.; SCOLES, R.; VIEIRA, L. C. de S.; RESENDE, A. F.; COPPOLA, A. I.; BRANDÃO, D. O.; SILVA JUNIOR, J. de A.; LOBATO, L. F.; FREITAS, W.; ALMEIDA, D.; SOUZA, M. S.; MINOR, D. M.; VILLEGAS, J. C.; LAW, D. J.; GONÇALVES, N.; ROCHA, D. G. da; GUEDES, M. C.; TONINI, H.; SILVA, K. E. da; HAREN, J. van; ROSA, D. M.; VALLE, D. F. do; CORDEIRO, C. L.; LIMA, N. Z. de; SHAO, G.; MENOR, I. O.; CONTI, G.; FLORENTINO, A. P.; MONTTI, L.; ARAGÃO, L. E. O. C.; McMAHON, S. M.; PARKER, G. G.; BRESHEARS, D. D.; COSTA, A. C. L. da; MAGNUSSON, W. E.; MESQUITA, R.; CAMARGO, J. L. C.; OLIVEIRA JUNIOR, R. C. de; CAMARGO, P. B. de; SALESKA, S. R.; NELSON, B. W. |
Afiliação: |
MARIELLE N. SMITH, MICHIGAN STATE UNIVERSITY; SCOTT C. STARK, MICHIGAN STATE UNIVERSITY; TYEEN C. TAYLOR, UNIVERSITY OF MICHIGAN; JULIANA SCHIETTI, UNIVERSIDADE FEDERAL DO AMAZONAS; DANILO ROBERTI ALVES DE ALMEIDA, UNIVERSIDADE DE SÃO PAULO; SUSAN ARAGÓN, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; KELLY TORRALVO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; ALBERTINA P. LIMA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; GABRIEL DE OLIVEIRA, UNIVERSITY OF SOUTH ALABAMA; RAFAEL LEANDRO DE ASSIS, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; VERONIKA LEITOLD, UNIVERSITY OF MARYLAND; ALINE PONTES-LOPES, INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS; RICARDO SCOLES, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; LUCIANA CRISTINA DE SOUSA VIEIRA, INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS; ANGELICA FARIA RESENDE, UNIVERSIDADE DE SÃO PAULO; ALYSHA I. COPPOLA, GEOLOGICAL INSTITUTE BIOGEOSCIENCES; DIEGO OLIVEIRA BRANDÃO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; JOÃO DE ATHAYDES SILVA JUNIOR, UNIVERSIDADE FEDERAL DO PARÁ; LAURA F. LOBATO, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; WAGNER FREITAS, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; DANIEL ALMEIDA, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; MENDELL S. SOUZA, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; DAVID M. MINOR, UNIVERSITY OF MARYLAND; JUAN CAMILO VILLEGAS, UNIVERSIDAD DE ANTIOQUIA; DARIN J. LAW, UNIVERSITY OF ARIZONA; NATHAN GONÇALVES, MICHIGAN STATE UNIVERSITY; DANIEL GOMES DA ROCHA, UNIVERSITY OF CALIFORNIA–DAVIS; MARCELINO CARNEIRO GUEDES, CPAF-AP; HELIO TONINI, CPPSUL; KATIA EMIDIO DA SILVA, CPAA; JOOST VAN HAREN, UNIVERSITY OF ARIZONA; DIOGO MARTINS ROSA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; DALTON FREITAS DO VALLE, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; CARLOS LEANDRO CORDEIRO, INSTITUTO INTERNACIONAL PARA SUSTENTABILIDADE; NICOLAS ZASLAVSKY DE LIMA, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; GANG SHAO, MICHIGAN STATE UNIVERSITY; IMMA OLIVERAS MENOR, UNIVERSITY OF OXFORD; GEORGINA CONTI, UNIVERSIDAD NACIONAL DE CÓRDOBA; ANA PAULA FLORENTINO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; LÍA MONTTI, UNIVERSIDAD NACIONAL DE MAR DEL PLATA-CONICET; LUIZ E. O. C. ARAGÃO, INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS; SEAN M. MCMAHON, SMITHSONIAN ENVIRONMENTAL RESEARCH CENTER; GEOFFREY G. PARKER, SMITHSONIAN ENVIRONMENTAL RESEARCH CENTER; DAVID D. BRESHEARS, UNIVERSITY OF ARIZONA; ANTONIO CARLOS LOLA DA COSTA, UNIVERSIDADE FEDERAL DO PARÁ; WILLIAM E. MAGNUSSON, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; RITA MESQUITA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; JOSÉ LUÍS C. CAMARGO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; PLINIO B. DE CAMARGO, UNIVERSIDADE DE SÃO PAULO; SCOTT R. SALESKA, UNIVERSITY OF ARIZONA; BRUCE WALKER NELSON, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA. |
Título: |
Diverse anthropogenic disturbances shift Amazon forests along a structural spectrum. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Frontiers in Ecology an the Environment, v. 21, n. 1, p. 24-32, 2023. |
DOI: |
https://doi.org/10.1002/fee.2590 |
Idioma: |
Inglês |
Conteúdo: |
Amazon forests are being degraded by myriad anthropogenic disturbances, altering ecosystem and climate function. We analyzed the effects of a range of land-use and climate-change disturbances on fine-scale canopy structure using a large database of profiling canopy lidar collected from disturbed and mature Amazon forest plots. At most of the disturbed sites, surveys were conducted 10?30 years after disturbance, with many exhibiting signs of recovery. Structural impacts differed in magnitude more than in character among disturbance types, producing a gradient of impacts. Structural changes were highly coordinated in a manner consistent across disturbance types, indicating commonalities in regeneration pathways. At the most severely affected site ? burned igapó (seasonally flooded forest) ? no signs of canopy regeneration were observed, indicating a sustained alteration of microclimates and consequently greater vulnerability to transitioning to a more open-canopy, savanna-like state. Notably, disturbances rarely shifted forests beyond the natural background of structural variation within mature plots, highlighting the similarities between anthropogenic and natural disturbance regimes, and indicating a degree of resilience among Amazon forests. Studying diverse disturbance types within an integrated analytical framework builds capacity to predict the risk of degradation-driven forest transitions. |
Thesagro: |
Floresta; Floresta Tropical; Mudança Climática; Regeneração. |
Categoria do assunto: |
-- K Ciência Florestal e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152143/1/CPAFAP-Diverse-anthropogenic-disturbances.pdf
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Marc: |
LEADER 03574naa a2200793 a 4500 001 2152143 005 2023-03-07 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1002/fee.2590$2DOI 100 1 $aSMITH, M. N. 245 $aDiverse anthropogenic disturbances shift Amazon forests along a structural spectrum.$h[electronic resource] 260 $c2023 520 $aAmazon forests are being degraded by myriad anthropogenic disturbances, altering ecosystem and climate function. We analyzed the effects of a range of land-use and climate-change disturbances on fine-scale canopy structure using a large database of profiling canopy lidar collected from disturbed and mature Amazon forest plots. At most of the disturbed sites, surveys were conducted 10?30 years after disturbance, with many exhibiting signs of recovery. Structural impacts differed in magnitude more than in character among disturbance types, producing a gradient of impacts. Structural changes were highly coordinated in a manner consistent across disturbance types, indicating commonalities in regeneration pathways. At the most severely affected site ? burned igapó (seasonally flooded forest) ? no signs of canopy regeneration were observed, indicating a sustained alteration of microclimates and consequently greater vulnerability to transitioning to a more open-canopy, savanna-like state. Notably, disturbances rarely shifted forests beyond the natural background of structural variation within mature plots, highlighting the similarities between anthropogenic and natural disturbance regimes, and indicating a degree of resilience among Amazon forests. Studying diverse disturbance types within an integrated analytical framework builds capacity to predict the risk of degradation-driven forest transitions. 650 $aFloresta 650 $aFloresta Tropical 650 $aMudança Climática 650 $aRegeneração 700 1 $aSTARK, S. C. 700 1 $aTAYLOR, T. C. 700 1 $aSCHIETTI, J. 700 1 $aALMEIDA, D. R. A. de 700 1 $aARAGÓN, S. 700 1 $aTORRALVO, K. 700 1 $aLIMA, A. P. 700 1 $aOLIVEIRA, G. de 700 1 $aASSIS, R. L. de 700 1 $aLEITOLD, V. 700 1 $aPONTES-LOPES, A. 700 1 $aSCOLES, R. 700 1 $aVIEIRA, L. C. de S. 700 1 $aRESENDE, A. F. 700 1 $aCOPPOLA, A. I. 700 1 $aBRANDÃO, D. O. 700 1 $aSILVA JUNIOR, J. de A. 700 1 $aLOBATO, L. F. 700 1 $aFREITAS, W. 700 1 $aALMEIDA, D. 700 1 $aSOUZA, M. S. 700 1 $aMINOR, D. M. 700 1 $aVILLEGAS, J. C. 700 1 $aLAW, D. J. 700 1 $aGONÇALVES, N. 700 1 $aROCHA, D. G. da 700 1 $aGUEDES, M. C. 700 1 $aTONINI, H. 700 1 $aSILVA, K. E. da 700 1 $aHAREN, J. van 700 1 $aROSA, D. M. 700 1 $aVALLE, D. F. do 700 1 $aCORDEIRO, C. L. 700 1 $aLIMA, N. Z. de 700 1 $aSHAO, G. 700 1 $aMENOR, I. O. 700 1 $aCONTI, G. 700 1 $aFLORENTINO, A. P. 700 1 $aMONTTI, L. 700 1 $aARAGÃO, L. E. O. C. 700 1 $aMcMAHON, S. M. 700 1 $aPARKER, G. G. 700 1 $aBRESHEARS, D. D. 700 1 $aCOSTA, A. C. L. da 700 1 $aMAGNUSSON, W. E. 700 1 $aMESQUITA, R. 700 1 $aCAMARGO, J. L. C. 700 1 $aOLIVEIRA JUNIOR, R. C. de 700 1 $aCAMARGO, P. B. de 700 1 $aSALESKA, S. R. 700 1 $aNELSON, B. W. 773 $tFrontiers in Ecology an the Environment$gv. 21, n. 1, p. 24-32, 2023.
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Registro original: |
Embrapa Amapá (CPAF-AP) |
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Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
07/07/2014 |
Data da última atualização: |
18/02/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
RACHWAL, M. F. G.; ZANATTA, J. A.; DIECKOW, J.; DENEGA, G. L.; CURCIO, G. R.; BAYER, C. |
Afiliação: |
MARCOS FERNANDO GLUCK RACHWAL, CNPF; JOSILEIA ACORDI ZANATTA, CNPF; JEFERSON DIECKOW, UFPR; GENUIR LUIS DENEGA, Estudande de doutorado UFRGS; GUSTAVO RIBAS CURCIO, CNPF; CIMELIO BAYER, Professor UFRGS. |
Título: |
Methane fluxes from waterlogged and drained histosols of highland areas. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 38, p. 486-494, 2014. |
Idioma: |
Inglês |
Conteúdo: |
Soil can be either source or sink of methane (CH4), depending on the balance between methanogenesis and methanotrophy, which are determined by pedological, climatic and management factors. The objective of this study was to assess the impact of drainage of a highland Haplic Histosol on CH4 fluxes. Field research was carried out in Ponta Grossa (Paraná, Brazil) based on the measurement of CH4 fluxes by the static chamber method in natural and drained Histosol, over one year (17 sampling events). The natural Histosol showed net CH4 eflux, with rates varying from 238 ?g m-2 h-1 CH4, in cool/cold periods, to 2,850 ?g m-2 h-1 CH4, in warm/hot periods, resulting a cumulative emission of 116 kg ha-1 yr-1 CH4. In the opposite, the drained Histosol showed net influx of CH4 (-39 to -146 ?g m-2 h-1), which resulted in a net consumption of 9 kg ha-1 yr-1 CH4. The main driving factors of CH4 consumption in the drained soil were the lowering of the water-table (on average -57 cm, vs -7 cm in natural soil) and the lower water content in the 0-10 cm layer (average of 5.5 kg kg-1, vs 9.9 kg kg-1 in natural soil). Although waterlogged Histosols of highland areas are regarded as CH4 sources, they fulfill fundamental functions in the ecosystem, such as the accumulation of organic carbon (581 Mg ha-1 C to a depth of 1 m) and water (8.6 million L ha-1 = 860 mm to a depth of 1 m). For this reason, these soils must not be drained as an alternative to mitigate CH4 emission, but effectively preserved. |
Palavras-Chave: |
Gases de efeito estufa; Nível freático; Precipitação pluviométrica; Temperatura do ar; Umidade gravimétrica. |
Thesagro: |
Água. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/104734/1/2014-API-Rachwal-MethaneFluxes.pdf
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Marc: |
LEADER 02245naa a2200253 a 4500 001 1989988 005 2015-02-18 008 2014 bl uuuu u00u1 u #d 100 1 $aRACHWAL, M. F. G. 245 $aMethane fluxes from waterlogged and drained histosols of highland areas.$h[electronic resource] 260 $c2014 520 $aSoil can be either source or sink of methane (CH4), depending on the balance between methanogenesis and methanotrophy, which are determined by pedological, climatic and management factors. The objective of this study was to assess the impact of drainage of a highland Haplic Histosol on CH4 fluxes. Field research was carried out in Ponta Grossa (Paraná, Brazil) based on the measurement of CH4 fluxes by the static chamber method in natural and drained Histosol, over one year (17 sampling events). The natural Histosol showed net CH4 eflux, with rates varying from 238 ?g m-2 h-1 CH4, in cool/cold periods, to 2,850 ?g m-2 h-1 CH4, in warm/hot periods, resulting a cumulative emission of 116 kg ha-1 yr-1 CH4. In the opposite, the drained Histosol showed net influx of CH4 (-39 to -146 ?g m-2 h-1), which resulted in a net consumption of 9 kg ha-1 yr-1 CH4. The main driving factors of CH4 consumption in the drained soil were the lowering of the water-table (on average -57 cm, vs -7 cm in natural soil) and the lower water content in the 0-10 cm layer (average of 5.5 kg kg-1, vs 9.9 kg kg-1 in natural soil). Although waterlogged Histosols of highland areas are regarded as CH4 sources, they fulfill fundamental functions in the ecosystem, such as the accumulation of organic carbon (581 Mg ha-1 C to a depth of 1 m) and water (8.6 million L ha-1 = 860 mm to a depth of 1 m). For this reason, these soils must not be drained as an alternative to mitigate CH4 emission, but effectively preserved. 650 $aÁgua 653 $aGases de efeito estufa 653 $aNível freático 653 $aPrecipitação pluviométrica 653 $aTemperatura do ar 653 $aUmidade gravimétrica 700 1 $aZANATTA, J. A. 700 1 $aDIECKOW, J. 700 1 $aDENEGA, G. L. 700 1 $aCURCIO, G. R. 700 1 $aBAYER, C. 773 $tRevista Brasileira de Ciência do Solo$gv. 38, p. 486-494, 2014.
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Embrapa Florestas (CNPF) |
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