Field and simulation data for larches growing in the Taimyr treeline ecotone
Arctic and alpine treelines worldwide differ in their reactions to climate change. A northward advance of or densification within the treeline ecotone will likely influence climate-vegetation feedback mechanisms. In our study, which was conducted in the Taimyr Depression in the North Siberian Lowlan...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.874615 2024-09-15T18:02:37+00:00 Field and simulation data for larches growing in the Taimyr treeline ecotone Wieczorek, Mareike Kruse, Stefan Epp, Laura Saskia Kolmogorov, Alexei Nikolaev, Anatoly N Heinrich, Ingo Jeltsch, Florian Pestryakova, Luidmila A Zibulski, Romy Herzschuh, Ulrike MEDIAN LATITUDE: 71.585507 * MEDIAN LONGITUDE: 100.640483 * SOUTH-BOUND LATITUDE: 70.665000 * WEST-BOUND LONGITUDE: 97.706000 * NORTH-BOUND LATITUDE: 72.409000 * EAST-BOUND LONGITUDE: 105.452000 2017 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.874615 https://doi.org/10.1594/PANGAEA.874615 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.874615 https://doi.org/10.1594/PANGAEA.874615 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Wieczorek, Mareike; Kruse, Stefan; Epp, Laura Saskia; Kolmogorov, Alexei; Nikolaev, Anatoly N; Heinrich, Ingo; Jeltsch, Florian; Pestryakova, Luidmila A; Zibulski, Romy; Herzschuh, Ulrike (2017): Dissimilar responses of larch stands in northern Siberia to increasing temperatures-a field and simulation based study. Ecology, 98(9), 2343-2355, https://doi.org/10.1002/ecy.1887 AWI_Envi AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI Polar Terrestrial Environmental Systems @ AWI dataset publication series 2017 ftpangaea https://doi.org/10.1594/PANGAEA.87461510.1002/ecy.1887 2024-07-24T02:31:21Z Arctic and alpine treelines worldwide differ in their reactions to climate change. A northward advance of or densification within the treeline ecotone will likely influence climate-vegetation feedback mechanisms. In our study, which was conducted in the Taimyr Depression in the North Siberian Lowlands, w present a combined field- and model-based approach helping us to better understand the population processes involved in the responses of the whole treeline ecotone, spanning from closed forest to single-tree tundra, to climate warming. Using information on stand structure, tree age, and seed quality and quantity from seven sites, we investigate effects of intra-specific competition and seed availability on the specific impact of recent climate warming on larch stands. Field data show that tree density is highest in the forest-tundra, and average tree size decreases from closed forest to single-tree tundra. Age-structure analyses indicate that the trees in the closed forest and forest-tundra have been present for at least ~240 years. At all sites except the most southerly ones, past establishment is positively correlated with regional temperature increase. In the single-tree tundra however, a change in growth form from krummholz to erect trees, beginning ~130 years ago, rather than establishment date has been recorded. Seed mass decreases from south to north, while seed quantity increases. Simulations with LAVESI (Larix Vegetation Simulator) further suggest that relative density changes strongly in response to a warming signal in the forest-tundra while intra-specific competition limits densification in the closed forest and seed limitation hinders densification in the single-tree tundra. We find striking differences in strength and timing of responses to recent climate warming. While forest-tundra stands recently densified, recruitment is almost non-existent at the southern and northern end of the ecotone due to autecological processes. Palaeo-treelines may therefore be inappropriate to infer past temperature ... Other/Unknown Material Climate change permafrost Taimyr Tundra PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(97.706000,105.452000,72.409000,70.665000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_Envi AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI Polar Terrestrial Environmental Systems @ AWI |
spellingShingle |
AWI_Envi AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI Polar Terrestrial Environmental Systems @ AWI Wieczorek, Mareike Kruse, Stefan Epp, Laura Saskia Kolmogorov, Alexei Nikolaev, Anatoly N Heinrich, Ingo Jeltsch, Florian Pestryakova, Luidmila A Zibulski, Romy Herzschuh, Ulrike Field and simulation data for larches growing in the Taimyr treeline ecotone |
topic_facet |
AWI_Envi AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI Polar Terrestrial Environmental Systems @ AWI |
description |
Arctic and alpine treelines worldwide differ in their reactions to climate change. A northward advance of or densification within the treeline ecotone will likely influence climate-vegetation feedback mechanisms. In our study, which was conducted in the Taimyr Depression in the North Siberian Lowlands, w present a combined field- and model-based approach helping us to better understand the population processes involved in the responses of the whole treeline ecotone, spanning from closed forest to single-tree tundra, to climate warming. Using information on stand structure, tree age, and seed quality and quantity from seven sites, we investigate effects of intra-specific competition and seed availability on the specific impact of recent climate warming on larch stands. Field data show that tree density is highest in the forest-tundra, and average tree size decreases from closed forest to single-tree tundra. Age-structure analyses indicate that the trees in the closed forest and forest-tundra have been present for at least ~240 years. At all sites except the most southerly ones, past establishment is positively correlated with regional temperature increase. In the single-tree tundra however, a change in growth form from krummholz to erect trees, beginning ~130 years ago, rather than establishment date has been recorded. Seed mass decreases from south to north, while seed quantity increases. Simulations with LAVESI (Larix Vegetation Simulator) further suggest that relative density changes strongly in response to a warming signal in the forest-tundra while intra-specific competition limits densification in the closed forest and seed limitation hinders densification in the single-tree tundra. We find striking differences in strength and timing of responses to recent climate warming. While forest-tundra stands recently densified, recruitment is almost non-existent at the southern and northern end of the ecotone due to autecological processes. Palaeo-treelines may therefore be inappropriate to infer past temperature ... |
format |
Other/Unknown Material |
author |
Wieczorek, Mareike Kruse, Stefan Epp, Laura Saskia Kolmogorov, Alexei Nikolaev, Anatoly N Heinrich, Ingo Jeltsch, Florian Pestryakova, Luidmila A Zibulski, Romy Herzschuh, Ulrike |
author_facet |
Wieczorek, Mareike Kruse, Stefan Epp, Laura Saskia Kolmogorov, Alexei Nikolaev, Anatoly N Heinrich, Ingo Jeltsch, Florian Pestryakova, Luidmila A Zibulski, Romy Herzschuh, Ulrike |
author_sort |
Wieczorek, Mareike |
title |
Field and simulation data for larches growing in the Taimyr treeline ecotone |
title_short |
Field and simulation data for larches growing in the Taimyr treeline ecotone |
title_full |
Field and simulation data for larches growing in the Taimyr treeline ecotone |
title_fullStr |
Field and simulation data for larches growing in the Taimyr treeline ecotone |
title_full_unstemmed |
Field and simulation data for larches growing in the Taimyr treeline ecotone |
title_sort |
field and simulation data for larches growing in the taimyr treeline ecotone |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.874615 https://doi.org/10.1594/PANGAEA.874615 |
op_coverage |
MEDIAN LATITUDE: 71.585507 * MEDIAN LONGITUDE: 100.640483 * SOUTH-BOUND LATITUDE: 70.665000 * WEST-BOUND LONGITUDE: 97.706000 * NORTH-BOUND LATITUDE: 72.409000 * EAST-BOUND LONGITUDE: 105.452000 |
long_lat |
ENVELOPE(97.706000,105.452000,72.409000,70.665000) |
genre |
Climate change permafrost Taimyr Tundra |
genre_facet |
Climate change permafrost Taimyr Tundra |
op_source |
Supplement to: Wieczorek, Mareike; Kruse, Stefan; Epp, Laura Saskia; Kolmogorov, Alexei; Nikolaev, Anatoly N; Heinrich, Ingo; Jeltsch, Florian; Pestryakova, Luidmila A; Zibulski, Romy; Herzschuh, Ulrike (2017): Dissimilar responses of larch stands in northern Siberia to increasing temperatures-a field and simulation based study. Ecology, 98(9), 2343-2355, https://doi.org/10.1002/ecy.1887 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.874615 https://doi.org/10.1594/PANGAEA.874615 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.87461510.1002/ecy.1887 |
_version_ |
1810440053037465600 |