Tundra vegetation stability versus lake-basin variability on the Yukon Coastal Plain (NW Canada) during the past three centuries
Palaeoclimatic reconstructions of the northern Yukon show cooler conditions before AD 1850 followed by gradual warming, and 20th-century temperature measurements indicate decadal-scale temperature fluctuations. The impact of climate on regional vegetation and lake systems has seldom been observed on...
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Online Access: | https://epic.awi.de/id/eprint/44732/ https://hdl.handle.net/10013/epic.50981 |
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ftawi:oai:epic.awi.de:44732 2023-05-15T15:09:37+02:00 Tundra vegetation stability versus lake-basin variability on the Yukon Coastal Plain (NW Canada) during the past three centuries Wolter, Juliane Lantuit, Hugues Herzschuh, Ulrike Stettner, Samuel Fritz, Michael 2017-06-01 https://epic.awi.de/id/eprint/44732/ https://hdl.handle.net/10013/epic.50981 unknown SAGE PUBLICATIONS LTD Wolter, J. orcid:0000-0001-6179-7621 , Lantuit, H. orcid:0000-0003-1497-6760 , Herzschuh, U. orcid:0000-0003-0999-1261 , Stettner, S. orcid:0000-0001-5278-7931 and Fritz, M. orcid:0000-0003-4591-7325 (2017) Tundra vegetation stability versus lake-basin variability on the Yukon Coastal Plain (NW Canada) during the past three centuries , The Holocene, 27 (12), pp. 1846-1858 . doi:10.1177/0959683617708441 <https://doi.org/10.1177/0959683617708441> , hdl:10013/epic.50981 EPIC3The Holocene, SAGE PUBLICATIONS LTD, 27(12), pp. 1846-1858, ISSN: 0959-6836 Article NonPeerReviewed 2017 ftawi https://doi.org/10.1177/0959683617708441 2022-08-14T23:12:30Z Palaeoclimatic reconstructions of the northern Yukon show cooler conditions before AD 1850 followed by gradual warming, and 20th-century temperature measurements indicate decadal-scale temperature fluctuations. The impact of climate on regional vegetation and lake systems has seldom been observed on this scale, however. With this study, we provide a sub-decadal reconstruction of regional vegetation and lake-basin development for the past 300 years, covering the ‘Little Ice Age’ and the period of recent warming, in low Arctic tundra. We analysed a short lake sediment core from the Yukon Coastal Plain. The age–depth relationship of the core is based on 210Pb/137Cs validated by AMS radiocarbon dating. We analysed terrestrial pollen abundances as proxies for regional vegetation development, and we used grain size and biogeochemical analyses (TOC, TN, TOC/TN, δ13C) and the analysis of semiaquatic pollen to describe the lake development. Stable abundances of regional pollen taxa between AD 1730 and AD 2012 accompanied by climatic warming indicated that the regional vegetation was not sensitive to climate change. Based on changes in TOC/TN, δ13C and pollen of shallow-water taxa, we reconstructed an increase in lake water depth after AD 1910 that likely followed climatic warming. We attributed this development to climate-driven thaw subsidence in the lake basin. The impact of widespread permafrost thaw on regional vegetation needs to be better constrained in order to predict the limits of vegetation stability and drivers of lake changes in the region. Article in Journal/Newspaper Arctic Climate change Ice permafrost Tundra Yukon Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Canada Short Lake ENVELOPE(-108.851,-108.851,59.584,59.584) Yukon The Holocene 27 12 1846 1858 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Palaeoclimatic reconstructions of the northern Yukon show cooler conditions before AD 1850 followed by gradual warming, and 20th-century temperature measurements indicate decadal-scale temperature fluctuations. The impact of climate on regional vegetation and lake systems has seldom been observed on this scale, however. With this study, we provide a sub-decadal reconstruction of regional vegetation and lake-basin development for the past 300 years, covering the ‘Little Ice Age’ and the period of recent warming, in low Arctic tundra. We analysed a short lake sediment core from the Yukon Coastal Plain. The age–depth relationship of the core is based on 210Pb/137Cs validated by AMS radiocarbon dating. We analysed terrestrial pollen abundances as proxies for regional vegetation development, and we used grain size and biogeochemical analyses (TOC, TN, TOC/TN, δ13C) and the analysis of semiaquatic pollen to describe the lake development. Stable abundances of regional pollen taxa between AD 1730 and AD 2012 accompanied by climatic warming indicated that the regional vegetation was not sensitive to climate change. Based on changes in TOC/TN, δ13C and pollen of shallow-water taxa, we reconstructed an increase in lake water depth after AD 1910 that likely followed climatic warming. We attributed this development to climate-driven thaw subsidence in the lake basin. The impact of widespread permafrost thaw on regional vegetation needs to be better constrained in order to predict the limits of vegetation stability and drivers of lake changes in the region. |
format |
Article in Journal/Newspaper |
author |
Wolter, Juliane Lantuit, Hugues Herzschuh, Ulrike Stettner, Samuel Fritz, Michael |
spellingShingle |
Wolter, Juliane Lantuit, Hugues Herzschuh, Ulrike Stettner, Samuel Fritz, Michael Tundra vegetation stability versus lake-basin variability on the Yukon Coastal Plain (NW Canada) during the past three centuries |
author_facet |
Wolter, Juliane Lantuit, Hugues Herzschuh, Ulrike Stettner, Samuel Fritz, Michael |
author_sort |
Wolter, Juliane |
title |
Tundra vegetation stability versus lake-basin variability on the Yukon Coastal Plain (NW Canada) during the past three centuries |
title_short |
Tundra vegetation stability versus lake-basin variability on the Yukon Coastal Plain (NW Canada) during the past three centuries |
title_full |
Tundra vegetation stability versus lake-basin variability on the Yukon Coastal Plain (NW Canada) during the past three centuries |
title_fullStr |
Tundra vegetation stability versus lake-basin variability on the Yukon Coastal Plain (NW Canada) during the past three centuries |
title_full_unstemmed |
Tundra vegetation stability versus lake-basin variability on the Yukon Coastal Plain (NW Canada) during the past three centuries |
title_sort |
tundra vegetation stability versus lake-basin variability on the yukon coastal plain (nw canada) during the past three centuries |
publisher |
SAGE PUBLICATIONS LTD |
publishDate |
2017 |
url |
https://epic.awi.de/id/eprint/44732/ https://hdl.handle.net/10013/epic.50981 |
long_lat |
ENVELOPE(-108.851,-108.851,59.584,59.584) |
geographic |
Arctic Canada Short Lake Yukon |
geographic_facet |
Arctic Canada Short Lake Yukon |
genre |
Arctic Climate change Ice permafrost Tundra Yukon |
genre_facet |
Arctic Climate change Ice permafrost Tundra Yukon |
op_source |
EPIC3The Holocene, SAGE PUBLICATIONS LTD, 27(12), pp. 1846-1858, ISSN: 0959-6836 |
op_relation |
Wolter, J. orcid:0000-0001-6179-7621 , Lantuit, H. orcid:0000-0003-1497-6760 , Herzschuh, U. orcid:0000-0003-0999-1261 , Stettner, S. orcid:0000-0001-5278-7931 and Fritz, M. orcid:0000-0003-4591-7325 (2017) Tundra vegetation stability versus lake-basin variability on the Yukon Coastal Plain (NW Canada) during the past three centuries , The Holocene, 27 (12), pp. 1846-1858 . doi:10.1177/0959683617708441 <https://doi.org/10.1177/0959683617708441> , hdl:10013/epic.50981 |
op_doi |
https://doi.org/10.1177/0959683617708441 |
container_title |
The Holocene |
container_volume |
27 |
container_issue |
12 |
container_start_page |
1846 |
op_container_end_page |
1858 |
_version_ |
1766340773852217344 |