Volatile organic compound emissions from subarctic mosses and lichens

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt


  • Fulltext

    Forlagets udgivne version, 5,43 MB, PDF-dokument

Plant volatile organic compound (VOC) emissions can drive important climate feedbacks. Although mosses and lichens are important components of plant communities, their VOC emissions are poorly understood. It is crucial to obtain more knowledge on moss and lichen VOCs to improve ecosystem VOC emission models. This is especially relevant at high latitudes, where mosses and lichens are abundant and VOC emissions are expected to increase in response to climate change. In this study, we examined VOC emissions from four common moss (Hylocomium splendens, Pleurozium schreberi, Sphagnum warnstorfii, and Tomentypnum nitens) and lichen (Cladonia arbuscula, Cladonia mitis, Cladonia pleurota, and Nephroma arcticum) species in the Subarctic using gas chromatography-mass spectrometry (GC-MS) and proton-transfer-reaction time-of-flight mass spectrometry. Moss and lichen VOC emissions were dominated by low molecular weight (LMW) VOCs, such as acetone and acetaldehyde, as well as hydrocarbons (HCs) and oxygenated VOCs (oVOCs). Of the studied mosses, S. warnstrofii had the highest and H. splendens had the lowest total VOC emission rates. The VOC emission blends of P. schreberi, S. warnstrofii, and T. nitens were clearly distinct from one another. Of the lichens, N. arcticum had a different VOC blend than the Cladonia spp. N. arcticum also had higher emission rates of HCs, oVOCs, and other GC-MS-based VOCs, but lower LMW VOC emission rates than the other lichen species. Our study demonstrates that mosses and lichens emit considerable amounts of various VOCs and that these emissions are species dependent.

TidsskriftAtmospheric Environment
Antal sider12
StatusUdgivet - 2022

Bibliografisk note

Funding Information:
This study was funded by the Danish Council for Independent Research | Natural Sciences ( DFF-4181-00141 ), the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement No 771012 ), and The Danish National Research Foundation ( CENPERM DNRF100 ). We are grateful to Ulrik Søchting for identification of the lichen species, and Aya Permin and Kathrin Rousk for identification of the moss species. We thank the Swedish Polar Research Secretariat and SITES for their support of the work carried out at the Abisko Scientific Research Station, which provided an excellent logistical base for the work.

Publisher Copyright:
© 2022 The Authors

Antal downloads er baseret på statistik fra Google Scholar og www.ku.dk

Ingen data tilgængelig

ID: 322869911