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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
08/10/2021 |
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Data da última atualização: |
13/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TAYLOR, T. C.; WISNIEWSKI, W. T.; ALVES, E. G.; OLIVEIRA JUNIOR, R. C. de; SALESKA, S. R. |
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Afiliação: |
TYEEN C. TAYLOR, University of Arizona / University of Miami; WIT T. WISNIEWSKI, University of Arizona; ELIANE G. ALVES, Max Planck Institute for Biogeochemistry; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; SCOTT R. SALESKA, University of Arizona. |
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Título: |
A new field instrument for leaf volatiles reveals an unexpected vertical profile of isoprenoid emission capacities in a tropical forest. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Frontiers in Forests and Global Change, v. 4, article 668228, July 2021. |
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DOI: |
10.3389/ffgc.2021.668228 |
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Idioma: |
Inglês |
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Conteúdo: |
Both plant physiology and atmospheric chemistry are substantially altered by the emission of volatile isoprenoids (VI), such as isoprene and monoterpenes, from plant leaves. Yet, since gaining scientific attention in the 1950?s, empirical research on leaf VI has been largely confined to laboratory experiments and atmospheric observations. Here, we introduce a new field instrument designed to bridge the scales from leaf to atmosphere, by enabling precision VI detection in real time from plants in their natural ecological setting. With a field campaign in the Brazilian Amazon, we reveal an unexpected distribution of leaf emission capacities (EC) across the vertical axis of the forest canopy, with EC peaking in the mid-canopy instead of the sun-exposed canopy surface, and moderately high emissions occurring in understory specialist species. Compared to the simple interpretation that VI protect leaves from heat stress at the hot canopy surface, our results encourage a more nuanced view of the adaptive role of VI in plants. We infer that forest emissions to the atmosphere depend on the dynamic microenvironments imposed by canopy structure, and not simply on canopy surface conditions. We provide a new emissions inventory from 52 tropical tree species, revealing moderate consistency in EC within taxonomic groups. We highlight priorities in leaf volatiles research that require field-portable detection systems. Our self-contained, portable instrument provides real-time detection and live measurement feedback with precision and detection limits better than 0.5 nmolVI m-2 leaf s-1. We call the instrument ?PORCO? based on the gas detection method: photoionization of organic compounds. We provide a thorough validation of PORCO and demonstrate its capacity to detect ecologically driven variation in leaf emission rates and thus accelerate a nascent field of science: the ecology and ecophysiology of plant volatiles. MenosBoth plant physiology and atmospheric chemistry are substantially altered by the emission of volatile isoprenoids (VI), such as isoprene and monoterpenes, from plant leaves. Yet, since gaining scientific attention in the 1950?s, empirical research on leaf VI has been largely confined to laboratory experiments and atmospheric observations. Here, we introduce a new field instrument designed to bridge the scales from leaf to atmosphere, by enabling precision VI detection in real time from plants in their natural ecological setting. With a field campaign in the Brazilian Amazon, we reveal an unexpected distribution of leaf emission capacities (EC) across the vertical axis of the forest canopy, with EC peaking in the mid-canopy instead of the sun-exposed canopy surface, and moderately high emissions occurring in understory specialist species. Compared to the simple interpretation that VI protect leaves from heat stress at the hot canopy surface, our results encourage a more nuanced view of the adaptive role of VI in plants. We infer that forest emissions to the atmosphere depend on the dynamic microenvironments imposed by canopy structure, and not simply on canopy surface conditions. We provide a new emissions inventory from 52 tropical tree species, revealing moderate consistency in EC within taxonomic groups. We highlight priorities in leaf volatiles research that require field-portable detection systems. Our self-contained, portable instrument provides real-time detection and ... Mostrar Tudo |
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Palavras-Chave: |
Ecofisiologia; Estrutura florestal; Microambiente; Química atmosférica. |
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Thesagro: |
Floresta Tropical. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/226815/1/ffgc-04-6682281.pdf
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Marc: |
LEADER 02738naa a2200241 a 4500
001 2135178
005 2021-10-13
008 2021 bl uuuu u00u1 u #d
024 7 $a10.3389/ffgc.2021.668228$2DOI
100 1 $aTAYLOR, T. C.
245 $aA new field instrument for leaf volatiles reveals an unexpected vertical profile of isoprenoid emission capacities in a tropical forest.$h[electronic resource]
260 $c2021
520 $aBoth plant physiology and atmospheric chemistry are substantially altered by the emission of volatile isoprenoids (VI), such as isoprene and monoterpenes, from plant leaves. Yet, since gaining scientific attention in the 1950?s, empirical research on leaf VI has been largely confined to laboratory experiments and atmospheric observations. Here, we introduce a new field instrument designed to bridge the scales from leaf to atmosphere, by enabling precision VI detection in real time from plants in their natural ecological setting. With a field campaign in the Brazilian Amazon, we reveal an unexpected distribution of leaf emission capacities (EC) across the vertical axis of the forest canopy, with EC peaking in the mid-canopy instead of the sun-exposed canopy surface, and moderately high emissions occurring in understory specialist species. Compared to the simple interpretation that VI protect leaves from heat stress at the hot canopy surface, our results encourage a more nuanced view of the adaptive role of VI in plants. We infer that forest emissions to the atmosphere depend on the dynamic microenvironments imposed by canopy structure, and not simply on canopy surface conditions. We provide a new emissions inventory from 52 tropical tree species, revealing moderate consistency in EC within taxonomic groups. We highlight priorities in leaf volatiles research that require field-portable detection systems. Our self-contained, portable instrument provides real-time detection and live measurement feedback with precision and detection limits better than 0.5 nmolVI m-2 leaf s-1. We call the instrument ?PORCO? based on the gas detection method: photoionization of organic compounds. We provide a thorough validation of PORCO and demonstrate its capacity to detect ecologically driven variation in leaf emission rates and thus accelerate a nascent field of science: the ecology and ecophysiology of plant volatiles.
650 $aFloresta Tropical
653 $aEcofisiologia
653 $aEstrutura florestal
653 $aMicroambiente
653 $aQuímica atmosférica
700 1 $aWISNIEWSKI, W. T.
700 1 $aALVES, E. G.
700 1 $aOLIVEIRA JUNIOR, R. C. de
700 1 $aSALESKA, S. R.
773 $tFrontiers in Forests and Global Change$gv. 4, article 668228, July 2021.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
27/03/2024 |
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Data da última atualização: |
10/04/2024 |
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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: |
WANTZEN, K. M.; ASSINE, M. L.; BORTOLOTTO, I. M.; CALHEIROS, D. F.; CAMPOS, Z.; CATELLA, A. C.; CHIARAVALOTTI, R. M.; COLLISCHONN, W.; COUTO, E. G.; CUNHA, C. N. da; DAMASCENO-JUNIOR, G. A.; SILVA, C. J. da; EBERHARD, A.; EBERT, A.; FIGUEIREDO, D. M. de; FRIEDLANDER, M.; GARCIA, L. C.; GIRARD, P.; HAMILTON, S. K.; IKEDA-CASTRILLON, S.; LIBONATI, R.; LOURIVAL, R.; MACEDO, H. de A.; MARCATO JUNIOR, J.; MATEUS, L.; MORATO, R. G.; MOURAO, G.; MUNIZ, C. C.; NUNES, A. V.; OLIVEIRA, M. D. de; OLIVERIA, M. da R.; OLIVEIRA JUNIOR, E. S.; PADOVANI, C. R.; PENHA, J.; RIBEIRO, D. B.; ROQUE, F. de O.; SILVA, A.; SORIANO, B. M. A.; SOUSA JUNIOR, W. C.; TOMAS, W. M.; TORTATO, F. R.; URBANETZ, C. |
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Afiliação: |
KARL M. WANTZEN, UNIVERSITY OF STRASBOURG; MARIO LUIS ASSINE, UNIVERSITY OF BRASILIA; IEDA MARIA BORTOLOTTO, MATO GROSSO DO SUL FEDERAL UNIVERSITY; DEBORA FERNANDES CALHEIROS, FEDERAL PUBLIC MINISTRY; ZILCA MARIA DA SILVA CAMPOS, CPAP; AGOSTINHO CARLOS CATELLA, CPAP; RAFAEL MORAIS CHIARAVALOTTI, UNIVERSITY COLLEGE LONDON; WALTER COLLISCHONN, RIO GRANDE DO SUL FEDERAL UNIVERSITY; EDUARDO GUIMARÃES COUTO, MATO GROSSO FEDERAL UNIVERSITY; CATIA NUNES DA CUNHA, NATIONAL INSTITUTE FOR WETLAND SCIENCE AND TECHNOLOGY; GERALDO ALVES DAMASCENO-JUNIOR, MATO GROSSO DO SUL FEDERAL UNIVERSITY; CAROLINA JOANA DA SILVA, PANTANAL BIOSPHERE RESERVE; ADALBERTO EBERHARD, FOUNDER OF ECOTROPICA FOUNDATION; ALEXANDRE EBERT, MATO GROSSO FEDERAL UNIVERSITY; DANIELA MAIMONI DE FIGUEIREDO, MATO GROSSO FEDERAL UNIVERSITY; MARIO FRIEDLANDER, COMISSAO DE DEFESA DAS CABECEIRAS DO JAMACA; LETICIA COUTO GARCIA, MATO GROSSO DO SUL FEDERAL UNIVERSITY; PIERRE GIRARD, MATO GROSSO FEDERAL UNIVERSITY; STEPHEN K. HAMILTON, MICHIGAN STATE UNIVERSITY; SOLANGE IKEDA-CASTRILLON, MATO GROSSO STATE UNIVERSITY; RENATA LIBONATI, RIO DE JANEIRO FEDERAL UNIVERSITY; REINALDO LOURIVAL, SAN DIEGO STATE UNIVERSITY; HUDSON DE AZEVEDO MACEDO, MATO GROSSO DO SUL FEDERAL UNIVERSITY; JOSÉ MARCATO JUNIOR, MATO GROSSO DO SUL FEDERAL UNIVERSITY; LUCIA MATEUS, MATO GROSSO FEDERAL UNIVERSITY; RONALDO GONÇALVES MORATO, CHICO MENDES INSTITUTE FOR BIODIVERSITY CONSERVATION; GUILHERME DE MIRANDA MOURAO, CPAP; CLAUMIR CESAR MUNIZ, MATO GROSSO STATE UNIVERSITY; ANDRÉ VALLE NUNES, ECOLOGY RESEARCH INSTITUTE; MARCIA DIVINA DE OLIVEIRA, CPAP; MAXWELL DA ROSA OLIVERIA, MINAS GERAIS FEDERAL UNIVERSITY; ERNANDES SOBREIRA OLIVEIRA JUNIOR, MATO GROSSO STATE UNIVERSITY; CARLOS ROBERTO PADOVANI, CPAP; JERRY PENHA, MATO GROSSO FEDERAL UNIVERSITY; DANILO BANDINI RIBEIRO, MATO GROSSO DO SUL FEDERAL UNIVERSITY; FABIO DE OLIVEIRA ROQUE, MATO GROSSO DO SUL FEDERAL UNIVERSITY; AGUINALDO SILVA, MATO GROSSO DO SUL FEDERAL UNIVERSITY; BALBINA MARIA ARAUJO SORIANO, CPAP; WILSON CABRAL SOUSA JUNIOR, AIRFORCE TECHNOLOGY INSTITUTE’S INFRASTRUCTURE; WALFRIDO MORAES TOMAS, CPAP; FERNANDO RODRIGO TORTATO, PANTHERA; CATIA URBANETZ, CPAP. |
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Título: |
The end of an entire biome? World's largest wetland, the Pantanal, is menaced by the Hidrovia project which is uncertain to sustainably support large-scale navigation. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Science of The Total Environment, v. 908, 167751, 2024. |
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DOI: |
https://doi.org/10.1016/j.scitotenv.2023.167751 |
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Idioma: |
Inglês |
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Conteúdo: |
The resurgent navigation project known as the Hidrovia Paraguay-Paran´a threatens the integrity of the Pantanal, the world’s largest wetland, which is considered a biome of its own. Intensive barge navigation is intended to transport crops (soybean, sugar, corn) and cement, iron and manganese from areas of production in Brazil, Paraguay and Bolivia to the oceanic ports of the Plata River. This short communication assembles the information available on the potential impacts of the planned deepening of the natural channel of the Paraguay River in its ~700 km-long upper section. These river channel alterations would disconnect the river from its floodplain, shorten the inundation period, and shrink the wetland area, resulting in severe degradation of the globally outstanding biological and cultural diversity of the Pantanal. The river sediments are mostly sandy and would require perpetual dredging. The reaches needing the most intensive dredging are those of the highest ecological value, protected as a National Park, UNESCO World Heritage and Biosphere Reserves, and various Indigenous reserves and Ramsar sites. Climate change is projected to increase the occurrence of low water periods. Between 2019 and 2021, navigation was impossible even in the already-deepened reaches of the Paraguay River between Corumb´a and Asuncion during long periods of the year. Thus, despite considerable financial and technical efforts, the success of the navigation project is doubtful, whereas enormous environmental, cultural, and social impacts can be anticipated. For these reasons, the Brazilian government had already turned down the project in 2000. We suggest alternative, less impactful modes of transport of commodities, e.g., via railway. MenosThe resurgent navigation project known as the Hidrovia Paraguay-Paran´a threatens the integrity of the Pantanal, the world’s largest wetland, which is considered a biome of its own. Intensive barge navigation is intended to transport crops (soybean, sugar, corn) and cement, iron and manganese from areas of production in Brazil, Paraguay and Bolivia to the oceanic ports of the Plata River. This short communication assembles the information available on the potential impacts of the planned deepening of the natural channel of the Paraguay River in its ~700 km-long upper section. These river channel alterations would disconnect the river from its floodplain, shorten the inundation period, and shrink the wetland area, resulting in severe degradation of the globally outstanding biological and cultural diversity of the Pantanal. The river sediments are mostly sandy and would require perpetual dredging. The reaches needing the most intensive dredging are those of the highest ecological value, protected as a National Park, UNESCO World Heritage and Biosphere Reserves, and various Indigenous reserves and Ramsar sites. Climate change is projected to increase the occurrence of low water periods. Between 2019 and 2021, navigation was impossible even in the already-deepened reaches of the Paraguay River between Corumb´a and Asuncion during long periods of the year. Thus, despite considerable financial and technical efforts, the success of the navigation project is doubtful, whereas enormo... Mostrar Tudo |
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Palavras-Chave: |
Environmental Chemistry; Waste Management and Disposal. |
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Thesagro: |
Degradação Ambiental; Impacto Ambiental; Navegação; Rio; Transporte Fluvial. |
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Thesaurus NAL: |
environmental engineering; Environmental impact; pollution; Rivers; Water transportation. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03987naa a2200769 a 4500
001 2163159
005 2024-04-10
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.scitotenv.2023.167751$2DOI
100 1 $aWANTZEN, K. M.
245 $aThe end of an entire biome? World's largest wetland, the Pantanal, is menaced by the Hidrovia project which is uncertain to sustainably support large-scale navigation.$h[electronic resource]
260 $c2024
520 $aThe resurgent navigation project known as the Hidrovia Paraguay-Paran´a threatens the integrity of the Pantanal, the world’s largest wetland, which is considered a biome of its own. Intensive barge navigation is intended to transport crops (soybean, sugar, corn) and cement, iron and manganese from areas of production in Brazil, Paraguay and Bolivia to the oceanic ports of the Plata River. This short communication assembles the information available on the potential impacts of the planned deepening of the natural channel of the Paraguay River in its ~700 km-long upper section. These river channel alterations would disconnect the river from its floodplain, shorten the inundation period, and shrink the wetland area, resulting in severe degradation of the globally outstanding biological and cultural diversity of the Pantanal. The river sediments are mostly sandy and would require perpetual dredging. The reaches needing the most intensive dredging are those of the highest ecological value, protected as a National Park, UNESCO World Heritage and Biosphere Reserves, and various Indigenous reserves and Ramsar sites. Climate change is projected to increase the occurrence of low water periods. Between 2019 and 2021, navigation was impossible even in the already-deepened reaches of the Paraguay River between Corumb´a and Asuncion during long periods of the year. Thus, despite considerable financial and technical efforts, the success of the navigation project is doubtful, whereas enormous environmental, cultural, and social impacts can be anticipated. For these reasons, the Brazilian government had already turned down the project in 2000. We suggest alternative, less impactful modes of transport of commodities, e.g., via railway.
650 $aenvironmental engineering
650 $aEnvironmental impact
650 $apollution
650 $aRivers
650 $aWater transportation
650 $aDegradação Ambiental
650 $aImpacto Ambiental
650 $aNavegação
650 $aRio
650 $aTransporte Fluvial
653 $aEnvironmental Chemistry
653 $aWaste Management and Disposal
700 1 $aASSINE, M. L.
700 1 $aBORTOLOTTO, I. M.
700 1 $aCALHEIROS, D. F.
700 1 $aCAMPOS, Z.
700 1 $aCATELLA, A. C.
700 1 $aCHIARAVALOTTI, R. M.
700 1 $aCOLLISCHONN, W.
700 1 $aCOUTO, E. G.
700 1 $aCUNHA, C. N. da
700 1 $aDAMASCENO-JUNIOR, G. A.
700 1 $aSILVA, C. J. da
700 1 $aEBERHARD, A.
700 1 $aEBERT, A.
700 1 $aFIGUEIREDO, D. M. de
700 1 $aFRIEDLANDER, M.
700 1 $aGARCIA, L. C.
700 1 $aGIRARD, P.
700 1 $aHAMILTON, S. K.
700 1 $aIKEDA-CASTRILLON, S.
700 1 $aLIBONATI, R.
700 1 $aLOURIVAL, R.
700 1 $aMACEDO, H. de A.
700 1 $aMARCATO JUNIOR, J.
700 1 $aMATEUS, L.
700 1 $aMORATO, R. G.
700 1 $aMOURAO, G.
700 1 $aMUNIZ, C. C.
700 1 $aNUNES, A. V.
700 1 $aOLIVEIRA, M. D. de
700 1 $aOLIVERIA, M. da R.
700 1 $aOLIVEIRA JUNIOR, E. S.
700 1 $aPADOVANI, C. R.
700 1 $aPENHA, J.
700 1 $aRIBEIRO, D. B.
700 1 $aROQUE, F. de O.
700 1 $aSILVA, A.
700 1 $aSORIANO, B. M. A.
700 1 $aSOUSA JUNIOR, W. C.
700 1 $aTOMAS, W. M.
700 1 $aTORTATO, F. R.
700 1 $aURBANETZ, C.
773 $tScience of The Total Environment$gv. 908, 167751, 2024.
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Embrapa Pantanal (CPAP) |
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