Signals of tree volume and temperature in a high‐resolution record of pollen accumulation rates in northern Finland
Abstract Pollen accumulation rates (PARs) provide a potential proxy for quantitative tree volume (m 3 ha −1 ) reconstruction with reliable absolute pollen productivity estimates (APPEs). We obtained APPEs for pine, spruce and birch at their range limits in northern Finland under two temperature peri...
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crwiley:10.1002/jqs.2549 2024-09-15T18:25:36+00:00 Signals of tree volume and temperature in a high‐resolution record of pollen accumulation rates in northern Finland Mazier, F. Nielsen, A. B. Broström, A. Sugita, S. Hicks, S. 2012 http://dx.doi.org/10.1002/jqs.2549 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2549 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2549 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 27, issue 6, page 564-574 ISSN 0267-8179 1099-1417 journal-article 2012 crwiley https://doi.org/10.1002/jqs.2549 2024-06-25T04:12:39Z Abstract Pollen accumulation rates (PARs) provide a potential proxy for quantitative tree volume (m 3 ha −1 ) reconstruction with reliable absolute pollen productivity estimates (APPEs). We obtained APPEs for pine, spruce and birch at their range limits in northern Finland under two temperature periods (‘warm’ and ‘cold’) based on long‐term pollen trap and tree volume records within a 14‐km radius of each trap. APPEs (mean ± SE; × 10 8 grains m −3 a −1 ) tend to be higher for the ‘warm’ periods (pine 123.8 ± 24.4, birch 528.0 ± 398.4, spruce 434.3 ± 113.7) compared with the ‘cold’ periods (pine 95.5 ± 37.3, birch 317.3 ± 282.6, spruce 119.6 ± 37.6), although the difference is only significant for spruce. Using an independent temperature record and the APPEs obtained, we reconstruct a low‐frequency record of pine volume changes over the last 1000 years at Palomaa mire, where a high‐resolution record of Pinus PARs is available. Five phases are distinguished in the reconstruction: moderate pine volume, AD 1080–1170; high volume, AD 1170–1340; low volume, AD 1340–1630; very low volume, AD 1630–1810; and rising pine volume, AD 1810–1950. These phases do not coincide with periods of high or low June–July–August temperatures, and thus appear to reflect regional variations in tree volume, while high‐frequency changes within each time‐period block show variations in PARs in response to temperature. Copyright © 2012 John Wiley & Sons, Ltd. Article in Journal/Newspaper Northern Finland Wiley Online Library Journal of Quaternary Science 27 6 564 574 |
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Wiley Online Library |
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English |
description |
Abstract Pollen accumulation rates (PARs) provide a potential proxy for quantitative tree volume (m 3 ha −1 ) reconstruction with reliable absolute pollen productivity estimates (APPEs). We obtained APPEs for pine, spruce and birch at their range limits in northern Finland under two temperature periods (‘warm’ and ‘cold’) based on long‐term pollen trap and tree volume records within a 14‐km radius of each trap. APPEs (mean ± SE; × 10 8 grains m −3 a −1 ) tend to be higher for the ‘warm’ periods (pine 123.8 ± 24.4, birch 528.0 ± 398.4, spruce 434.3 ± 113.7) compared with the ‘cold’ periods (pine 95.5 ± 37.3, birch 317.3 ± 282.6, spruce 119.6 ± 37.6), although the difference is only significant for spruce. Using an independent temperature record and the APPEs obtained, we reconstruct a low‐frequency record of pine volume changes over the last 1000 years at Palomaa mire, where a high‐resolution record of Pinus PARs is available. Five phases are distinguished in the reconstruction: moderate pine volume, AD 1080–1170; high volume, AD 1170–1340; low volume, AD 1340–1630; very low volume, AD 1630–1810; and rising pine volume, AD 1810–1950. These phases do not coincide with periods of high or low June–July–August temperatures, and thus appear to reflect regional variations in tree volume, while high‐frequency changes within each time‐period block show variations in PARs in response to temperature. Copyright © 2012 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Mazier, F. Nielsen, A. B. Broström, A. Sugita, S. Hicks, S. |
spellingShingle |
Mazier, F. Nielsen, A. B. Broström, A. Sugita, S. Hicks, S. Signals of tree volume and temperature in a high‐resolution record of pollen accumulation rates in northern Finland |
author_facet |
Mazier, F. Nielsen, A. B. Broström, A. Sugita, S. Hicks, S. |
author_sort |
Mazier, F. |
title |
Signals of tree volume and temperature in a high‐resolution record of pollen accumulation rates in northern Finland |
title_short |
Signals of tree volume and temperature in a high‐resolution record of pollen accumulation rates in northern Finland |
title_full |
Signals of tree volume and temperature in a high‐resolution record of pollen accumulation rates in northern Finland |
title_fullStr |
Signals of tree volume and temperature in a high‐resolution record of pollen accumulation rates in northern Finland |
title_full_unstemmed |
Signals of tree volume and temperature in a high‐resolution record of pollen accumulation rates in northern Finland |
title_sort |
signals of tree volume and temperature in a high‐resolution record of pollen accumulation rates in northern finland |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1002/jqs.2549 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2549 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2549 |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_source |
Journal of Quaternary Science volume 27, issue 6, page 564-574 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.2549 |
container_title |
Journal of Quaternary Science |
container_volume |
27 |
container_issue |
6 |
container_start_page |
564 |
op_container_end_page |
574 |
_version_ |
1810466102520578048 |