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Signals of tree volume and temperature in a high-resolution record of pollen accumulation rates in northern Finland

Mazier, Florence LU ; Nielsen, Anne Birgitte LU ; Broström, Anna LU ; Sugita, S. and Hicks, S. (2012) In Journal of Quaternary Science 27(6). p.564-574
Abstract
Pollen accumulation rates (PARs) provide a potential proxy for quantitative tree volume (m3 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;?x?108 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... (More)
Pollen accumulation rates (PARs) provide a potential proxy for quantitative tree volume (m3 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;?x?108 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 10801170; high volume, AD 11701340; low volume, AD 13401630; very low volume, AD 16301810; and rising pine volume, AD 18101950. These phases do not coincide with periods of high or low JuneJulyAugust 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 (c) 2012 John Wiley & Sons, Ltd. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
pollen accumulation rates, absolute pollen productivity, northern boreal, forest, Pinus sylvestris, tree volume reconstruction
in
Journal of Quaternary Science
volume
27
issue
6
pages
564 - 574
publisher
John Wiley & Sons
external identifiers
  • wos:000307549400003
  • scopus:84865174229
ISSN
1099-1417
DOI
10.1002/jqs.2549
project
MERGE
language
English
LU publication?
yes
id
7579f6c4-f955-454e-b02f-3d9710726b93 (old id 3059762)
date added to LUP
2012-09-26 09:56:59
date last changed
2017-10-01 04:06:52
@article{7579f6c4-f955-454e-b02f-3d9710726b93,
  abstract     = {Pollen accumulation rates (PARs) provide a potential proxy for quantitative tree volume (m3 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;?x?108 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 10801170; high volume, AD 11701340; low volume, AD 13401630; very low volume, AD 16301810; and rising pine volume, AD 18101950. These phases do not coincide with periods of high or low JuneJulyAugust 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 (c) 2012 John Wiley & Sons, Ltd.},
  author       = {Mazier, Florence and Nielsen, Anne Birgitte and Broström, Anna and Sugita, S. and Hicks, S.},
  issn         = {1099-1417},
  keyword      = {pollen accumulation rates,absolute pollen productivity,northern boreal,forest,Pinus sylvestris,tree volume reconstruction},
  language     = {eng},
  number       = {6},
  pages        = {564--574},
  publisher    = {John Wiley & Sons},
  series       = {Journal of Quaternary Science},
  title        = {Signals of tree volume and temperature in a high-resolution record of pollen accumulation rates in northern Finland},
  url          = {http://dx.doi.org/10.1002/jqs.2549},
  volume       = {27},
  year         = {2012},
}