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| Titel |
Climate warming and vegetation response after Heinrich event 1 (16 700-16 000 cal yr BP) in Europe south of the Alps |
| VerfasserIn |
S. Samartin, O. Heiri, A. F. Lotter, W. Tinner |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 8, no. 6 ; Nr. 8, no. 6 (2012-11-27), S.1913-1927 |
| Datensatznummer |
250005977
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| Publikation (Nr.) |
 copernicus.org/cp-8-1913-2012.pdf |
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| Zusammenfassung |
| Chironomids preserved in a sediment core from Lago di Origlio
(416 m a.s.l.), a lake in the foreland of the Southern Swiss Alps, allowed
quantitative reconstruction of Late Glacial and Early Holocene summer
temperatures using a combined Swiss–Norwegian temperature inference model
based on chironomid assemblages from 274 lakes. We reconstruct July air
temperatures of ca. 10 °C between 17 300 and 16 000 cal yr BP, a
rather abrupt warming to ca. 12.0 °C at ca. 16 500–16 000 cal yr BP,
and a strong temperature increase at the transition to the
Bølling/Allerød interstadial with average temperatures of about
14 °C. During the Younger Dryas and earliest Holocene similar
temperatures are reconstructed as for the interstadial. The rather abrupt
warming at 16 500–16 000 cal yr BP is consistent with sea-surface
temperature as well as speleothem records, which indicate a warming after
the end of Heinrich event 1 (sensu stricto) and before the
Bølling/Allerød interstadial in southern Europe and the Mediterranean
Sea. Pollen records from Origlio and other sites in southern Switzerland and
northern Italy indicate an early reforestation of the lowlands 2000–1500 yr
prior to the large-scale afforestation of Central Europe at the onset
of the Bølling/Allerød period at ca. 14 700–14 600 cal yr BP. Our
results suggest that these early afforestation processes in the formerly
glaciated areas of northern Italy and southern Switzerland have been
promoted by increasing temperatures. |
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