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| Titel |
Spatial and seasonal variation in volatile compounds air concentrations in a hemiboreal mixed forest. |
| VerfasserIn |
Steffen M. Noe, Katja Hüve, Ulo Niinemets, Lucian Copolovici |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250079352
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| Zusammenfassung |
| The seasonal and vertical distribution of ambient biogenic volatile organic compounds
(BVOC) concentrations within a hemiboreal forest canopy was investigated over a period of
one year. Variability in temporal and spatial terpene concentrations spanned over a wide
range. Specially stress related emissions lead to very high ambient concentrations in dry and
hot summer months.
Seasonal differences in the share of different monoterpenes were found. During summer
months, dominance of α-pinene in the lower and of limonene in the upper part of the canopy
was observed, both accounting for up to 70 % of the total monoterpene concentration. During
wintertime, Δ3-carene was the dominant species, accounting for 60 % of total monoterpene
concentration in January.
Spatially, the possible sources of biogenic monoterpenes are beside foliage the leaf litter
and top soil as well as resins exuding from stems. |
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