Within-canopy sesquiterpene ozonolysis in Amazonia
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | http://repositorio.unifesp.br/handle/11600/34070 http://dx.doi.org/10.1029/2011JD016243 |
Resumo: | Through rapid reactions with ozone, which can initiate the formation of secondary organic aerosols, the emission of sesquiterpenes from vegetation in Amazonia may have significant impacts on tropospheric chemistry and climate. Little is known, however, about sesquiterpene emissions, transport, and chemistry within plant canopies owing to analytical difficulties stemming from very low ambient concentrations, high reactivities, and sampling losses. Here, we present ambient sesquiterpene concentration measurements obtained during the 2010 dry season within and above a primary tropical forest canopy in Amazonia. We show that by peaking at night instead of during the day, and near the ground instead of within the canopy, sesquiterpene concentrations followed a pattern different from that of monoterpenes, suggesting that unlike monoterpene emissions, which are mainly light dependent, sesquiterpene emissions are mainly temperature dependent. in addition, we observed that sesquiterpene concentrations were inversely related with ozone (with respect to time of day and vertical concentration), suggesting that ambient concentrations are highly sensitive to ozone. These conclusions are supported by experiments in a tropical rain forest mesocosm, where little atmospheric oxidation occurs and sesquiterpene and monoterpene concentrations followed similar diurnal patterns. We estimate that the daytime dry season ozone flux of -0.6 to -1.5 nmol m(-2) s(-1) due to in-canopy sesquiterpene reactivity could account for 7%-28% of the net ozone flux. Our study provides experimental evidence that a large fraction of total plant sesquiterpene emissions (46%-61% by mass) undergo within-canopy ozonolysis, which may benefit plants by reducing ozone uptake and its associated oxidative damage. |
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Jardine, K.Serrano, A. YanezArneth, A.Abrell, L.Jardine, A.van Haren, J.Artaxo, P.Rizzo, Luciana Varanda [UNIFESP]Ishida, F. Y.Karl, T.Kesselmeier, J.Saleska, S.Huxman, T.Univ ArizonaLund UnivKarlsruhe Inst TechnolUniversidade de São Paulo (USP)Inst Nacl de Pesquisas da AmazoniaNatl Ctr Atmospher ResMax Planck Inst ChemUniversidade Federal de São Paulo (UNIFESP)2016-01-24T14:17:14Z2016-01-24T14:17:14Z2011-10-01Journal of Geophysical Research-atmospheres. Washington: Amer Geophysical Union, v. 116, 10 p., 2011.2169-897Xhttp://repositorio.unifesp.br/handle/11600/34070http://dx.doi.org/10.1029/2011JD01624310.1029/2011JD016243WOS:000295536400002Through rapid reactions with ozone, which can initiate the formation of secondary organic aerosols, the emission of sesquiterpenes from vegetation in Amazonia may have significant impacts on tropospheric chemistry and climate. Little is known, however, about sesquiterpene emissions, transport, and chemistry within plant canopies owing to analytical difficulties stemming from very low ambient concentrations, high reactivities, and sampling losses. Here, we present ambient sesquiterpene concentration measurements obtained during the 2010 dry season within and above a primary tropical forest canopy in Amazonia. We show that by peaking at night instead of during the day, and near the ground instead of within the canopy, sesquiterpene concentrations followed a pattern different from that of monoterpenes, suggesting that unlike monoterpene emissions, which are mainly light dependent, sesquiterpene emissions are mainly temperature dependent. in addition, we observed that sesquiterpene concentrations were inversely related with ozone (with respect to time of day and vertical concentration), suggesting that ambient concentrations are highly sensitive to ozone. These conclusions are supported by experiments in a tropical rain forest mesocosm, where little atmospheric oxidation occurs and sesquiterpene and monoterpene concentrations followed similar diurnal patterns. We estimate that the daytime dry season ozone flux of -0.6 to -1.5 nmol m(-2) s(-1) due to in-canopy sesquiterpene reactivity could account for 7%-28% of the net ozone flux. Our study provides experimental evidence that a large fraction of total plant sesquiterpene emissions (46%-61% by mass) undergo within-canopy ozonolysis, which may benefit plants by reducing ozone uptake and its associated oxidative damage.Philecology Foundation of Fort Worth, TexasNational Science Foundation through the AMAZON-PIRE (Partnerships for International Research and Education)Swedish Research Councils VRFormasUniv Arizona, Tucson, AZ 85738 USALund Univ, Dept Phys Geog & Ecosyst Anal, S-22362 Lund, SwedenKarlsruhe Inst Technol, Inst Meteorol & Climate Research Atmospher Enviro, Garmisch Partenkirchen, GermanyUniv Arizona, Dept Chem & Biochem, Tucson, AZ 85721 USAUniv São Paulo, Inst Fis, BR-05508900 São Paulo, BrazilInst Nacl de Pesquisas da Amazonia, BR-69060001 Manaus, Amazonas, BrazilNatl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80307 USAMax Planck Inst Chem, Biogeochem Dept, D-55020 Mainz, GermanyUniv Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ 85721 USAUniversidade Federal de São Paulo, Dept Exact & Earth Sci, BR-09972270 Diadema, SP, BrazilUniversidade Federal de São Paulo, Dept Exact & Earth Sci, BR-09972270 Diadema, SP, BrazilNational Science Foundation through the AMAZON-PIRE (Partnerships for International Research and Education): 0730305National Science Foundation through the AMAZON-PIRE (Partnerships for International Research and Education): CHE 0216226Web of Science10engAmer Geophysical UnionJournal of Geophysical Research-atmospheresWithin-canopy sesquiterpene ozonolysis in Amazoniainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESP11600/340702022-07-08 10:58:17.312metadata only accessoai:repositorio.unifesp.br:11600/34070Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestopendoar:34652022-07-08T13:58:17Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.en.fl_str_mv |
Within-canopy sesquiterpene ozonolysis in Amazonia |
title |
Within-canopy sesquiterpene ozonolysis in Amazonia |
spellingShingle |
Within-canopy sesquiterpene ozonolysis in Amazonia Jardine, K. |
title_short |
Within-canopy sesquiterpene ozonolysis in Amazonia |
title_full |
Within-canopy sesquiterpene ozonolysis in Amazonia |
title_fullStr |
Within-canopy sesquiterpene ozonolysis in Amazonia |
title_full_unstemmed |
Within-canopy sesquiterpene ozonolysis in Amazonia |
title_sort |
Within-canopy sesquiterpene ozonolysis in Amazonia |
author |
Jardine, K. |
author_facet |
Jardine, K. Serrano, A. Yanez Arneth, A. Abrell, L. Jardine, A. van Haren, J. Artaxo, P. Rizzo, Luciana Varanda [UNIFESP] Ishida, F. Y. Karl, T. Kesselmeier, J. Saleska, S. Huxman, T. |
author_role |
author |
author2 |
Serrano, A. Yanez Arneth, A. Abrell, L. Jardine, A. van Haren, J. Artaxo, P. Rizzo, Luciana Varanda [UNIFESP] Ishida, F. Y. Karl, T. Kesselmeier, J. Saleska, S. Huxman, T. |
author2_role |
author author author author author author author author author author author author |
dc.contributor.institution.none.fl_str_mv |
Univ Arizona Lund Univ Karlsruhe Inst Technol Universidade de São Paulo (USP) Inst Nacl de Pesquisas da Amazonia Natl Ctr Atmospher Res Max Planck Inst Chem Universidade Federal de São Paulo (UNIFESP) |
dc.contributor.author.fl_str_mv |
Jardine, K. Serrano, A. Yanez Arneth, A. Abrell, L. Jardine, A. van Haren, J. Artaxo, P. Rizzo, Luciana Varanda [UNIFESP] Ishida, F. Y. Karl, T. Kesselmeier, J. Saleska, S. Huxman, T. |
description |
Through rapid reactions with ozone, which can initiate the formation of secondary organic aerosols, the emission of sesquiterpenes from vegetation in Amazonia may have significant impacts on tropospheric chemistry and climate. Little is known, however, about sesquiterpene emissions, transport, and chemistry within plant canopies owing to analytical difficulties stemming from very low ambient concentrations, high reactivities, and sampling losses. Here, we present ambient sesquiterpene concentration measurements obtained during the 2010 dry season within and above a primary tropical forest canopy in Amazonia. We show that by peaking at night instead of during the day, and near the ground instead of within the canopy, sesquiterpene concentrations followed a pattern different from that of monoterpenes, suggesting that unlike monoterpene emissions, which are mainly light dependent, sesquiterpene emissions are mainly temperature dependent. in addition, we observed that sesquiterpene concentrations were inversely related with ozone (with respect to time of day and vertical concentration), suggesting that ambient concentrations are highly sensitive to ozone. These conclusions are supported by experiments in a tropical rain forest mesocosm, where little atmospheric oxidation occurs and sesquiterpene and monoterpene concentrations followed similar diurnal patterns. We estimate that the daytime dry season ozone flux of -0.6 to -1.5 nmol m(-2) s(-1) due to in-canopy sesquiterpene reactivity could account for 7%-28% of the net ozone flux. Our study provides experimental evidence that a large fraction of total plant sesquiterpene emissions (46%-61% by mass) undergo within-canopy ozonolysis, which may benefit plants by reducing ozone uptake and its associated oxidative damage. |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011-10-01 |
dc.date.accessioned.fl_str_mv |
2016-01-24T14:17:14Z |
dc.date.available.fl_str_mv |
2016-01-24T14:17:14Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
Journal of Geophysical Research-atmospheres. Washington: Amer Geophysical Union, v. 116, 10 p., 2011. |
dc.identifier.uri.fl_str_mv |
http://repositorio.unifesp.br/handle/11600/34070 http://dx.doi.org/10.1029/2011JD016243 |
dc.identifier.issn.none.fl_str_mv |
2169-897X |
dc.identifier.doi.none.fl_str_mv |
10.1029/2011JD016243 |
dc.identifier.wos.none.fl_str_mv |
WOS:000295536400002 |
identifier_str_mv |
Journal of Geophysical Research-atmospheres. Washington: Amer Geophysical Union, v. 116, 10 p., 2011. 2169-897X 10.1029/2011JD016243 WOS:000295536400002 |
url |
http://repositorio.unifesp.br/handle/11600/34070 http://dx.doi.org/10.1029/2011JD016243 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.none.fl_str_mv |
Journal of Geophysical Research-atmospheres |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
10 |
dc.publisher.none.fl_str_mv |
Amer Geophysical Union |
publisher.none.fl_str_mv |
Amer Geophysical Union |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UNIFESP instname:Universidade Federal de São Paulo (UNIFESP) instacron:UNIFESP |
instname_str |
Universidade Federal de São Paulo (UNIFESP) |
instacron_str |
UNIFESP |
institution |
UNIFESP |
reponame_str |
Repositório Institucional da UNIFESP |
collection |
Repositório Institucional da UNIFESP |
repository.name.fl_str_mv |
Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP) |
repository.mail.fl_str_mv |
|
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1802764157478502400 |