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| Titel |
Methyl chloride emission from a fern growing in sub-tropical, temperate and cool-temperate climates |
| VerfasserIn |
Yoko Yokouchi, Akio Takenaka, Yuzo Miyazaki, Kimitaka Kawamura, Tsutomu Hiura |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250102740
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| Publikation (Nr.) |
 EGU/EGU2015-2137.pdf |
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| Zusammenfassung |
| Methyl chloride(CH3Cl) is the most abundant halocarbon in the troposphere, and is known as
a natural stratospheric ozone depletion compound. Amongst its various sources, tropical
forests are likely the largest contributor, followed by biomass burning, oceans and salt
marshes. There have been unsolved questions why CH3Cl-emitting plants are dominated by
tropical plants. Recently we found that a fern, Osmunda japonica, collected from temperate
zone emits as high as several μg/
g(dw)-1/
h-1 of CH3Cl. This fern has a wide
natural distribution, covering sub-tropical, temperate and cool-temperate climate,
making it possible to study the CH3Cl emission rate from one species under different
climate conditions. In this presentation, we report seasonal and spatial variation
of the CH3Cl emission rate from O. japonica, and discuss its controlling factors. |
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