BVOC fluxes above mountain grassland
Grasslands comprise natural tropical savannah over managed temperate fields to tundra and cover one quarter of the Earth's land surface. Plant growth, maintenance and decay result in volatile organic compound (VOCs) emissions to the atmosphere. Furthermore, biogenic VOCs (BVOCs) are emitted as...
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ftdoajarticles:oai:doaj.org/article:d7db02103d62450394ddf0de40dfa851 2023-05-15T18:40:32+02:00 BVOC fluxes above mountain grassland I. Bamberger L. Hörtnagl R. Schnitzhofer M. Graus T. M. Ruuskanen M. Müller J. Dunkl G. Wohlfahrt A. Hansel 2010-05-01T00:00:00Z https://doi.org/10.5194/bg-7-1413-2010 https://doaj.org/article/d7db02103d62450394ddf0de40dfa851 EN eng Copernicus Publications http://www.biogeosciences.net/7/1413/2010/bg-7-1413-2010.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-7-1413-2010 1726-4170 1726-4189 https://doaj.org/article/d7db02103d62450394ddf0de40dfa851 Biogeosciences, Vol 7, Iss 5, Pp 1413-1424 (2010) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2010 ftdoajarticles https://doi.org/10.5194/bg-7-1413-2010 2022-12-31T06:54:43Z Grasslands comprise natural tropical savannah over managed temperate fields to tundra and cover one quarter of the Earth's land surface. Plant growth, maintenance and decay result in volatile organic compound (VOCs) emissions to the atmosphere. Furthermore, biogenic VOCs (BVOCs) are emitted as a consequence of various environmental stresses including cutting and drying during harvesting. Fluxes of BVOCs were measured with a proton-transfer-reaction-mass-spectrometer (PTR-MS) over temperate mountain grassland in Stubai Valley (Tyrol, Austria) over one growing season (2008). VOC fluxes were calculated from the disjunct PTR-MS data using the virtual disjunct eddy covariance method and the gap filling method. Methanol fluxes obtained with the two independent flux calculation methods were highly correlated ( y = 0.95×−0.12, R 2 = 0.92). Methanol showed strong daytime emissions throughout the growing season – with maximal values of 9.7 nmol m −2 s −1 , methanol fluxes from the growing grassland were considerably higher at the beginning of the growing season in June compared to those measured during October (2.5 nmol m −2 s −1 ). Methanol was the only component that exhibited consistent fluxes during the entire growing periods of the grass. The cutting and drying of the grass increased the emissions of methanol to up to 78.4 nmol m −2 s −1 . In addition, emissions of acetaldehyde (up to 11.0 nmol m −2 s −1 ), and hexenal (leaf aldehyde, up to 8.6 nmol m −2 s −1 ) were detected during/after harvesting. Article in Journal/Newspaper Tundra Directory of Open Access Journals: DOAJ Articles Biogeosciences 7 5 1413 1424 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
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Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 I. Bamberger L. Hörtnagl R. Schnitzhofer M. Graus T. M. Ruuskanen M. Müller J. Dunkl G. Wohlfahrt A. Hansel BVOC fluxes above mountain grassland |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
Grasslands comprise natural tropical savannah over managed temperate fields to tundra and cover one quarter of the Earth's land surface. Plant growth, maintenance and decay result in volatile organic compound (VOCs) emissions to the atmosphere. Furthermore, biogenic VOCs (BVOCs) are emitted as a consequence of various environmental stresses including cutting and drying during harvesting. Fluxes of BVOCs were measured with a proton-transfer-reaction-mass-spectrometer (PTR-MS) over temperate mountain grassland in Stubai Valley (Tyrol, Austria) over one growing season (2008). VOC fluxes were calculated from the disjunct PTR-MS data using the virtual disjunct eddy covariance method and the gap filling method. Methanol fluxes obtained with the two independent flux calculation methods were highly correlated ( y = 0.95×−0.12, R 2 = 0.92). Methanol showed strong daytime emissions throughout the growing season – with maximal values of 9.7 nmol m −2 s −1 , methanol fluxes from the growing grassland were considerably higher at the beginning of the growing season in June compared to those measured during October (2.5 nmol m −2 s −1 ). Methanol was the only component that exhibited consistent fluxes during the entire growing periods of the grass. The cutting and drying of the grass increased the emissions of methanol to up to 78.4 nmol m −2 s −1 . In addition, emissions of acetaldehyde (up to 11.0 nmol m −2 s −1 ), and hexenal (leaf aldehyde, up to 8.6 nmol m −2 s −1 ) were detected during/after harvesting. |
format |
Article in Journal/Newspaper |
author |
I. Bamberger L. Hörtnagl R. Schnitzhofer M. Graus T. M. Ruuskanen M. Müller J. Dunkl G. Wohlfahrt A. Hansel |
author_facet |
I. Bamberger L. Hörtnagl R. Schnitzhofer M. Graus T. M. Ruuskanen M. Müller J. Dunkl G. Wohlfahrt A. Hansel |
author_sort |
I. Bamberger |
title |
BVOC fluxes above mountain grassland |
title_short |
BVOC fluxes above mountain grassland |
title_full |
BVOC fluxes above mountain grassland |
title_fullStr |
BVOC fluxes above mountain grassland |
title_full_unstemmed |
BVOC fluxes above mountain grassland |
title_sort |
bvoc fluxes above mountain grassland |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/bg-7-1413-2010 https://doaj.org/article/d7db02103d62450394ddf0de40dfa851 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Biogeosciences, Vol 7, Iss 5, Pp 1413-1424 (2010) |
op_relation |
http://www.biogeosciences.net/7/1413/2010/bg-7-1413-2010.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-7-1413-2010 1726-4170 1726-4189 https://doaj.org/article/d7db02103d62450394ddf0de40dfa851 |
op_doi |
https://doi.org/10.5194/bg-7-1413-2010 |
container_title |
Biogeosciences |
container_volume |
7 |
container_issue |
5 |
container_start_page |
1413 |
op_container_end_page |
1424 |
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1766229919372673024 |