Dissimilar responses of larch stands in northern Siberia to increasing temperatures-a field and simulation based study
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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ftubpotsdam:oai:kobv.de-opus4-uni-potsdam:46398 2023-12-17T10:26:39+01:00 Dissimilar responses of larch stands in northern Siberia to increasing temperatures-a field and simulation based study Wieczorek, Mareike Kruse, Stefan Epp, Laura Saskia Kolmogorov, Alexei Nikolaev, Anatoly N. Heinrich, Ingo Jeltsch, Florian Pestryakova, Luidmila Agafyevna Zibulski, Romy Herzschuh, Ulrike (Prof. Dr.) 2017 https://publishup.uni-potsdam.de/frontdoor/index/index/docId/46398 https://doi.org/10.1002/ecy.1887 eng eng https://publishup.uni-potsdam.de/frontdoor/index/index/docId/46398 https://doi.org/10.1002/ecy.1887 info:eu-repo/semantics/closedAccess Institut für Biochemie und Biologie Institut für Geowissenschaften article doc-type:article 2017 ftubpotsdam https://doi.org/10.1002/ecy.1887 2023-11-19T23:35:12Z 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 similar to 240 yr. 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 similar to 130 yr 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 ... Article in Journal/Newspaper Arctic Climate change Taimyr Tundra Siberia University of Potsdam: publish.UP Arctic Ecology 98 9 2343 2355 |
institution |
Open Polar |
collection |
University of Potsdam: publish.UP |
op_collection_id |
ftubpotsdam |
language |
English |
topic |
Institut für Biochemie und Biologie Institut für Geowissenschaften |
spellingShingle |
Institut für Biochemie und Biologie Institut für Geowissenschaften Wieczorek, Mareike Kruse, Stefan Epp, Laura Saskia Kolmogorov, Alexei Nikolaev, Anatoly N. Heinrich, Ingo Jeltsch, Florian Pestryakova, Luidmila Agafyevna Zibulski, Romy Herzschuh, Ulrike (Prof. Dr.) Dissimilar responses of larch stands in northern Siberia to increasing temperatures-a field and simulation based study |
topic_facet |
Institut für Biochemie und Biologie Institut für Geowissenschaften |
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 similar to 240 yr. 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 similar to 130 yr 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 ... |
format |
Article in Journal/Newspaper |
author |
Wieczorek, Mareike Kruse, Stefan Epp, Laura Saskia Kolmogorov, Alexei Nikolaev, Anatoly N. Heinrich, Ingo Jeltsch, Florian Pestryakova, Luidmila Agafyevna Zibulski, Romy Herzschuh, Ulrike (Prof. Dr.) |
author_facet |
Wieczorek, Mareike Kruse, Stefan Epp, Laura Saskia Kolmogorov, Alexei Nikolaev, Anatoly N. Heinrich, Ingo Jeltsch, Florian Pestryakova, Luidmila Agafyevna Zibulski, Romy Herzschuh, Ulrike (Prof. Dr.) |
author_sort |
Wieczorek, Mareike |
title |
Dissimilar responses of larch stands in northern Siberia to increasing temperatures-a field and simulation based study |
title_short |
Dissimilar responses of larch stands in northern Siberia to increasing temperatures-a field and simulation based study |
title_full |
Dissimilar responses of larch stands in northern Siberia to increasing temperatures-a field and simulation based study |
title_fullStr |
Dissimilar responses of larch stands in northern Siberia to increasing temperatures-a field and simulation based study |
title_full_unstemmed |
Dissimilar responses of larch stands in northern Siberia to increasing temperatures-a field and simulation based study |
title_sort |
dissimilar responses of larch stands in northern siberia to increasing temperatures-a field and simulation based study |
publishDate |
2017 |
url |
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/46398 https://doi.org/10.1002/ecy.1887 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Taimyr Tundra Siberia |
genre_facet |
Arctic Climate change Taimyr Tundra Siberia |
op_relation |
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/46398 https://doi.org/10.1002/ecy.1887 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1002/ecy.1887 |
container_title |
Ecology |
container_volume |
98 |
container_issue |
9 |
container_start_page |
2343 |
op_container_end_page |
2355 |
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1785578377130803200 |