Plant macrofossil evidence for an early onset of the Holocene summer thermal maximum in northernmost Europe.
(2015) In Nature Communications 6.- Abstract
- Holocene summer temperature reconstructions from northern Europe based on sedimentary pollen records suggest an onset of peak summer warmth around 9,000 years ago. However, pollen-based temperature reconstructions are largely driven by changes in the proportions of tree taxa, and thus the early-Holocene warming signal may be delayed due to the geographical disequilibrium between climate and tree populations. Here we show that quantitative summer-temperature estimates in northern Europe based on macrofossils of aquatic plants are in many cases ca. 2 °C warmer in the early Holocene (11,700-7,500 years ago) than reconstructions based on pollen data. When the lag in potential tree establishment becomes imperceptible in the mid-Holocene (7,500... (More)
- Holocene summer temperature reconstructions from northern Europe based on sedimentary pollen records suggest an onset of peak summer warmth around 9,000 years ago. However, pollen-based temperature reconstructions are largely driven by changes in the proportions of tree taxa, and thus the early-Holocene warming signal may be delayed due to the geographical disequilibrium between climate and tree populations. Here we show that quantitative summer-temperature estimates in northern Europe based on macrofossils of aquatic plants are in many cases ca. 2 °C warmer in the early Holocene (11,700-7,500 years ago) than reconstructions based on pollen data. When the lag in potential tree establishment becomes imperceptible in the mid-Holocene (7,500 years ago), the reconstructed temperatures converge at all study sites. We demonstrate that aquatic plant macrofossil records can provide additional and informative insights into early-Holocene temperature evolution in northernmost Europe and suggest further validation of early post-glacial climate development based on multi-proxy data syntheses. (Less)
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- author
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nature Communications
- volume
- 6
- article number
- 6809
- publisher
- Nature Publishing Group
- external identifiers
-
- pmid:25858780
- wos:000353702500049
- scopus:84927588905
- pmid:25858780
- ISSN
- 2041-1723
- DOI
- 10.1038/ncomms7809
- language
- English
- LU publication?
- yes
- id
- 10bb195a-4d30-4f0e-a6ae-198c79e6f95e (old id 5345020)
- date added to LUP
- 2016-04-01 13:21:21
- date last changed
- 2022-04-21 21:08:37
@article{10bb195a-4d30-4f0e-a6ae-198c79e6f95e,
abstract = {{Holocene summer temperature reconstructions from northern Europe based on sedimentary pollen records suggest an onset of peak summer warmth around 9,000 years ago. However, pollen-based temperature reconstructions are largely driven by changes in the proportions of tree taxa, and thus the early-Holocene warming signal may be delayed due to the geographical disequilibrium between climate and tree populations. Here we show that quantitative summer-temperature estimates in northern Europe based on macrofossils of aquatic plants are in many cases ca. 2 °C warmer in the early Holocene (11,700-7,500 years ago) than reconstructions based on pollen data. When the lag in potential tree establishment becomes imperceptible in the mid-Holocene (7,500 years ago), the reconstructed temperatures converge at all study sites. We demonstrate that aquatic plant macrofossil records can provide additional and informative insights into early-Holocene temperature evolution in northernmost Europe and suggest further validation of early post-glacial climate development based on multi-proxy data syntheses.}},
author = {{Väliranta, M and Salonen, J S and Heikkilä, M and Amon, L and Helmens, K and Klimaschewski, A and Kuhry, P and Kultti, S and Poska, Anneli and Shala, S and Veski, S and Birks, H H}},
issn = {{2041-1723}},
language = {{eng}},
publisher = {{Nature Publishing Group}},
series = {{Nature Communications}},
title = {{Plant macrofossil evidence for an early onset of the Holocene summer thermal maximum in northernmost Europe.}},
url = {{http://dx.doi.org/10.1038/ncomms7809}},
doi = {{10.1038/ncomms7809}},
volume = {{6}},
year = {{2015}},
}