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Net ecosystem fluxes and composition of biogenic volatile organic compounds over a maize field-interaction of meteorology and phenological stages

Wiß, Felix; Ghirardo, Andrea; Schnitzler, Jörg-Peter; Nendel, Claas; Augustin, Jürgen; Hoffmann, Mathias; Grote, Rüdiger

Abstract:
Bioenergy crop production is rapidly expanding in Europe, and the potential emissions of biogenic volatile organic compounds (BVOCs) might change the chemical composition of the atmosphere, influencing in turn air quality and regional climate. The environmental impacts of bioenergy crops on air chemistry are difficult to assess due to a lack of accurate field observations. Therefore, we studied BVOC fluxes from a bioenergy maize field in North-Eastern Germany throughout the entire reproductive growth stage of the plants. Combining automated large chambers and proton transfer reaction mass spectrometry (PTR-MS), we successfully measured fluxes of the highly reactive hydrocarbons monoterpenes (MTs) and sesquiterpenes (SQTs), together with several other BVOCs, including alcohols, aldehydes, ketones, benzenoids, and fatty acid derivatives. Emissions of MTs and SQTs were relatively high (17.0% and 3.6% of total mean molar BVOC emission, respectively) compared to methanol emissions (17.6%). Seasonal MT and SQT fluxes were clearly associated with the flowering phase, originating mainly from the flowering tissues as shown in additional labo ... mehr

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Volltext §
DOI: 10.5445/IR/1000070858
Originalveröffentlichung
DOI: 10.1111/gcbb.12454
Scopus
Zitationen: 2
Web of Science
Zitationen: 2
Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator ISSN: 1757-1693, 1757-1707
urn:nbn:de:swb:90-708584
KITopen-ID: 1000070858
HGF-Programm 12.02.04 (POF III, LK 01)
Erschienen in Global change biology / Bioenergy
Band 9
Heft 11
Seiten 1627-1643
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Nachgewiesen in Scopus
Web of Science
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