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| Titel |
Mirror image hydrocarbons from Tropical and Boreal forests |
| VerfasserIn |
J. Williams, N. Yassaa, S. Bartenbach, J. Lelieveld  |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 7, no. 3 ; Nr. 7, no. 3 (2007-02-22), S.973-980 |
| Datensatznummer |
250004575
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| Publikation (Nr.) |
 copernicus.org/acp-7-973-2007.pdf |
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| Zusammenfassung |
| Monoterpenes, emitted in large quantities by trees to attract pollinators
and repel herbivores, can exist in mirror image forms called enantiomers. In
this study such enantiomeric pairs have been measured in ambient air over
extensive forest ecosystems in South America and northern Europe. For the
dominant monoterpene, α-pinene, the (−)-form was measured in large
excess over the (+)-form over the Tropical rainforest, whereas the reverse
was observed over the Boreal forest. Interestingly, over the Tropical forest
(−)-α-pinene did not correlate with its own enantiomer, but
correlated well with isoprene. The results indicate a remarkable ecosystem
scale enantiomeric fingerprint and a nexus between the biosphere and
atmosphere. |
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