UV-induced carbon monoxide emission from living vegetation
Author:
Bruhn D.,Albert K. R.,Mikkelsen T. N.,Ambus P.
Abstract
Abstract. The global burden of carbon monoxide (CO) is rather uncertain. In this paper we address the potential for UV-induced CO emission by living terrestrial vegetation surfaces. Real-time measurements of CO concentrations were made with a cavity enhanced laser spectrometer connected in closed loop to either an ecosystem chamber or a plant-leaf scale chamber. Leaves of all examined plant species exhibited emission of CO in response to artificial UV-radiation as well as the UV-component of natural solar radiation. The UV-induced rate of CO emission exhibited a rather low dependence on temperature, indicating an abiotic process. The emission of CO in response to the UV-component of natural solar radiation was also evident at the ecosystem scale.
Publisher
Copernicus GmbH
Reference16 articles.
1. Brandt,~L A., Bohnet,~C., and King,~J Y.: Photochemically induced carbon dioxide production as a~mechanism for carbon loss from plant litter in arid ecosystems,~J. Geophys. Res., 114, G02004, \\doi10.1029/2008JG000772, \\doi10.1029/2008JG000772, 2009. 2. Bruhn,~D., Mikkelsen,~T N., Øbro,~J., Willats,~W G T., and Ambus,~P.: Effects of temperature, ultraviolet radiation and pectin methyl esterase on aerobic methane release from plant material, Plant Biol., 11, 43–48, 2009. 3. Derendorp,~L., Quist,~J B., Holzinger,~R., and Röckmann,~T.: Emissisions of H2 and CO from leaf litter of \\textitSequoiadendron giganteum and their dependence on UV radiation and temperature, Atmos. Environ., 45, 7520–7524, 2011. 4. Galbally,~I., Meyer,~C P., Wang,~Y.-P., and Kirstine,~W.: Soil-atmosphere exchange of CH4, CO, N2O and NOx nd the effects of land-use change in the semiarid Mallee system in Southeastern Australia, Global Change Biol., 16, 2407–2419, 2010. 5. Guenther,~A.: The contribution of reactive carbon emissions from vegetation to the carbon balance of terrestrial ecosystems, Chemosphere, 49, 837–844, 2002.
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