Within-canopy sesquiterpene ozonolysis in Amazonia
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 c...
| Autor principal: | Jardine, Kolby J. |
|---|---|
| Outros Autores: | Yáñez-Serrano, Ana Maria, Arneth, Almuth, Abrell, Leif, Jardine, Angela B., van Haren, Joost L.M., Artaxo, Paulo, Rizzo, L. V., Ishida, Francoise Yoko, Karl, Thomas G., Kesselmeier, Jürgen, Saleska, Scott Reid, Huxman, Travis E. |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Journal of Geophysical Research Atmospheres
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/18242 |
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oai:repositorio:1-18242 |
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oai:repositorio:1-18242 Within-canopy sesquiterpene ozonolysis in Amazonia Jardine, Kolby J. Yáñez-Serrano, Ana Maria Arneth, Almuth Abrell, Leif Jardine, Angela B. van Haren, Joost L.M. Artaxo, Paulo Rizzo, L. V. Ishida, Francoise Yoko Karl, Thomas G. Kesselmeier, Jürgen Saleska, Scott Reid Huxman, Travis E. Chemical Analysis Drought Forestry Olefins Amazonia Ambient Concentrations Atmospheric Oxidation Concentration Measurement Diurnal Pattern Dry Seasons Experimental Evidence High Reactivity Highly Sensitive Mesocosms Monoterpene Emissions Monoterpenes Oxidative Damage Ozone Flux Ozone Uptake Ozonolysis Plant Canopies Rapid Reactions Secondary Organic Aerosols Sesquiterpenes Significant Impacts Temperature Dependent Time Of Day Tropical Forest Tropical Rain Forest Tropospheric Chemistry Ozone Aerosol Formation Air Sampling Ambient Air Atmospheric Chemistry Biogenic Emission Canopy Exchange Experimental Study Forest Canopy Isoprene Mesocosm Oxidation Ozone Temperature Effect Terpene Troposphere Amazonia 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. © 2011 by the American Geophysical Union. 2020-06-15T21:52:57Z 2020-06-15T21:52:57Z 2011 Artigo https://repositorio.inpa.gov.br/handle/1/18242 10.1029/2011JD016243 en Volume 116, Número 19 Restrito Journal of Geophysical Research Atmospheres |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Chemical Analysis Drought Forestry Olefins Amazonia Ambient Concentrations Atmospheric Oxidation Concentration Measurement Diurnal Pattern Dry Seasons Experimental Evidence High Reactivity Highly Sensitive Mesocosms Monoterpene Emissions Monoterpenes Oxidative Damage Ozone Flux Ozone Uptake Ozonolysis Plant Canopies Rapid Reactions Secondary Organic Aerosols Sesquiterpenes Significant Impacts Temperature Dependent Time Of Day Tropical Forest Tropical Rain Forest Tropospheric Chemistry Ozone Aerosol Formation Air Sampling Ambient Air Atmospheric Chemistry Biogenic Emission Canopy Exchange Experimental Study Forest Canopy Isoprene Mesocosm Oxidation Ozone Temperature Effect Terpene Troposphere Amazonia |
| spellingShingle |
Chemical Analysis Drought Forestry Olefins Amazonia Ambient Concentrations Atmospheric Oxidation Concentration Measurement Diurnal Pattern Dry Seasons Experimental Evidence High Reactivity Highly Sensitive Mesocosms Monoterpene Emissions Monoterpenes Oxidative Damage Ozone Flux Ozone Uptake Ozonolysis Plant Canopies Rapid Reactions Secondary Organic Aerosols Sesquiterpenes Significant Impacts Temperature Dependent Time Of Day Tropical Forest Tropical Rain Forest Tropospheric Chemistry Ozone Aerosol Formation Air Sampling Ambient Air Atmospheric Chemistry Biogenic Emission Canopy Exchange Experimental Study Forest Canopy Isoprene Mesocosm Oxidation Ozone Temperature Effect Terpene Troposphere Amazonia Jardine, Kolby J. Within-canopy sesquiterpene ozonolysis in Amazonia |
| topic_facet |
Chemical Analysis Drought Forestry Olefins Amazonia Ambient Concentrations Atmospheric Oxidation Concentration Measurement Diurnal Pattern Dry Seasons Experimental Evidence High Reactivity Highly Sensitive Mesocosms Monoterpene Emissions Monoterpenes Oxidative Damage Ozone Flux Ozone Uptake Ozonolysis Plant Canopies Rapid Reactions Secondary Organic Aerosols Sesquiterpenes Significant Impacts Temperature Dependent Time Of Day Tropical Forest Tropical Rain Forest Tropospheric Chemistry Ozone Aerosol Formation Air Sampling Ambient Air Atmospheric Chemistry Biogenic Emission Canopy Exchange Experimental Study Forest Canopy Isoprene Mesocosm Oxidation Ozone Temperature Effect Terpene Troposphere Amazonia |
| 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. © 2011 by the American Geophysical Union. |
| format |
Artigo |
| author |
Jardine, Kolby J. |
| author2 |
Yáñez-Serrano, Ana Maria Arneth, Almuth Abrell, Leif Jardine, Angela B. van Haren, Joost L.M. Artaxo, Paulo Rizzo, L. V. Ishida, Francoise Yoko Karl, Thomas G. Kesselmeier, Jürgen Saleska, Scott Reid Huxman, Travis E. |
| author2Str |
Yáñez-Serrano, Ana Maria Arneth, Almuth Abrell, Leif Jardine, Angela B. van Haren, Joost L.M. Artaxo, Paulo Rizzo, L. V. Ishida, Francoise Yoko Karl, Thomas G. Kesselmeier, Jürgen Saleska, Scott Reid Huxman, Travis E. |
| title |
Within-canopy sesquiterpene ozonolysis in Amazonia |
| 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 |
| publisher |
Journal of Geophysical Research Atmospheres |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18242 |
| _version_ |
1787145431892885504 |
| score |
11.755432 |