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Late-Holocene expansion of a south Swedish peatland and its impact on marginal ecosystems: Evidence from dendrochronology, peat stratigraphy and palaeobotanical data

Edvardsson, Johannes LU ; Poska, Anneli LU ; Van der Putten, Nathalie LU ; Rundgren, Mats LU ; Linderson, Hans LU and Hammarlund, Dan LU (2014) In The Holocene 24(4). p.466-476
Abstract
In this study, a reconstruction of the long-term development and lateral expansion of a south Swedish peat bog was performed using a multi-proxy approach, including dendrochronology, peat stratigraphy and macrofossil and pollen analyses. By combining mapping of cross-dated subfossil trees with radiocarbon-dated peat sequences, an improved approach to reconstruction of lateral peat expansion was applied. Apart from providing approximate ages of tree burial episodes, the ring-width records offer information on hydrological variations prior to the bog expansion. New bog oak, pine and alder chronologies are presented and their potential as a dating tool for peatland expansion as well as for local to regional environmental interpretations is... (More)
In this study, a reconstruction of the long-term development and lateral expansion of a south Swedish peat bog was performed using a multi-proxy approach, including dendrochronology, peat stratigraphy and macrofossil and pollen analyses. By combining mapping of cross-dated subfossil trees with radiocarbon-dated peat sequences, an improved approach to reconstruction of lateral peat expansion was applied. Apart from providing approximate ages of tree burial episodes, the ring-width records offer information on hydrological variations prior to the bog expansion. New bog oak, pine and alder chronologies are presented and their potential as a dating tool for peatland expansion as well as for local to regional environmental interpretations is examined. Our tree-replication records show that increased amounts of bog trees in the central parts can be linked to drier bog-surface conditions, whereas an increase in wood remains in the marginal zone is related to enhanced preservation due to lateral bog expansion. Our reconstructions of the development of the peat deposit and associated changes in the distribution of vegetation communities provide new insight into peatland responses to climate change at the end of the 'Holocene Thermal Maximum' (5000-4000 cal. yr BP). (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
alder, dendrochronology, late Holocene, lateral bog expansion, macrofossil analysis, oak, peat stratigraphy, pollen analysis, South, Sweden, subfossil trees
in
The Holocene
volume
24
issue
4
pages
466 - 476
publisher
SAGE Publications Inc.
external identifiers
  • wos:000337290500007
  • scopus:84896054064
ISSN
0959-6836
DOI
10.1177/0959683613520255
project
MERGE
BECC
language
English
LU publication?
yes
id
9d8313a1-ae1d-4c3b-b9d7-0d3a7d48493c (old id 4548017)
date added to LUP
2014-07-17 08:42:12
date last changed
2017-04-20 13:10:49
@article{9d8313a1-ae1d-4c3b-b9d7-0d3a7d48493c,
  abstract     = {In this study, a reconstruction of the long-term development and lateral expansion of a south Swedish peat bog was performed using a multi-proxy approach, including dendrochronology, peat stratigraphy and macrofossil and pollen analyses. By combining mapping of cross-dated subfossil trees with radiocarbon-dated peat sequences, an improved approach to reconstruction of lateral peat expansion was applied. Apart from providing approximate ages of tree burial episodes, the ring-width records offer information on hydrological variations prior to the bog expansion. New bog oak, pine and alder chronologies are presented and their potential as a dating tool for peatland expansion as well as for local to regional environmental interpretations is examined. Our tree-replication records show that increased amounts of bog trees in the central parts can be linked to drier bog-surface conditions, whereas an increase in wood remains in the marginal zone is related to enhanced preservation due to lateral bog expansion. Our reconstructions of the development of the peat deposit and associated changes in the distribution of vegetation communities provide new insight into peatland responses to climate change at the end of the 'Holocene Thermal Maximum' (5000-4000 cal. yr BP).},
  author       = {Edvardsson, Johannes and Poska, Anneli and Van der Putten, Nathalie and Rundgren, Mats and Linderson, Hans and Hammarlund, Dan},
  issn         = {0959-6836},
  keyword      = {alder,dendrochronology,late Holocene,lateral bog expansion,macrofossil analysis,oak,peat stratigraphy,pollen analysis,South,Sweden,subfossil trees},
  language     = {eng},
  number       = {4},
  pages        = {466--476},
  publisher    = {SAGE Publications Inc.},
  series       = {The Holocene},
  title        = {Late-Holocene expansion of a south Swedish peatland and its impact on marginal ecosystems: Evidence from dendrochronology, peat stratigraphy and palaeobotanical data},
  url          = {http://dx.doi.org/10.1177/0959683613520255},
  volume       = {24},
  year         = {2014},
}