Post-fire vegetation succession in the Siberian subarctic tundra over 45 years
Wildfires are relatively rare in subarctic tundra ecosystems, but they can strongly change ecosystem properties. Short-term fire effects on subarctic tundra vegetation are well documented, but long-term vegetation recovery has been studied less. The frequency of tundra fires will increase with clima...
Main Authors: | , , , , , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
2020
|
Subjects: | |
Online Access: | https://zenodo.org/record/4266767 https://doi.org/10.5061/dryad.sn02v6x2n |
id |
ftzenodo:oai:zenodo.org:4266767 |
---|---|
record_format |
openpolar |
spelling |
ftzenodo:oai:zenodo.org:4266767 2023-06-06T11:51:33+02:00 Post-fire vegetation succession in the Siberian subarctic tundra over 45 years Heim, Ramona Julia Bucharova, Anna Brodt, Leya Kamp, Johannes Rieker, Daniel Soromotin, Andrey Yurtaev, Andrey Hölzel, Norbert 2020-11-10 https://zenodo.org/record/4266767 https://doi.org/10.5061/dryad.sn02v6x2n unknown doi:10.1101/756163 doi:10.1016/j.scitotenv.2020.143425 https://zenodo.org/communities/dryad https://zenodo.org/record/4266767 https://doi.org/10.5061/dryad.sn02v6x2n oai:zenodo.org:4266767 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode tundra Betula nana Vaccinium uliginosum SLA LDMC shrub enroachment soil temperature permafrost thaw depth info:eu-repo/semantics/other dataset 2020 ftzenodo https://doi.org/10.5061/dryad.sn02v6x2n10.1101/75616310.1016/j.scitotenv.2020.143425 2023-04-13T23:03:49Z Wildfires are relatively rare in subarctic tundra ecosystems, but they can strongly change ecosystem properties. Short-term fire effects on subarctic tundra vegetation are well documented, but long-term vegetation recovery has been studied less. The frequency of tundra fires will increase with climate warming. Understanding the long-term effects of fire is necessary to predict future ecosystem changes. We used a space-for-time approach to assess vegetation recovery after fire over more than four decades. We studied soil and vegetation patterns on three large fire scars (>44, 28 and 12 years old) in dry, lichen-dominated forest tundra in Western Siberia. On 60 plots, we determined soil temperature and permafrost thaw depth, sampled vegetation and measured plant functional traits. We assessed trends in NDVI to support the field-based results on vegetation recovery.Soil temperature, permafrost thaw depth and total vegetation cover had recovered to pre-fire levels after >44 years, as well as total vegetation cover. In contrast, after >44 years, functional groups had not recovered to the pre-fire state. Burnt areas had lower lichen and higher bryophyte and shrub cover. The dominating shrub species, Betula nana, exhibited a higher vitality (higher specific leaf area and plant height) on burnt compared with control plots, suggesting a fire legacy effect in shrub growth. Our results confirm patterns of shrub encroachment after fire that were detected before in other parts of the Arctic and Subarctic. In the so far poorly studied Western Siberian forest tundra we demonstrate for the first time, long-term fire-legacies on the functional composition of relatively dry shrub- and lichen-dominated vegetation. Funding provided by: Deutscher Akademischer AustauschdienstCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100001655Award Number: PROMOSFunding provided by: Studienstiftung des Deutschen VolkesCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100004350Award Number: Promotionsstipendium Dataset Arctic Betula nana permafrost Subarctic Tundra Siberia Zenodo Arctic |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
tundra Betula nana Vaccinium uliginosum SLA LDMC shrub enroachment soil temperature permafrost thaw depth |
spellingShingle |
tundra Betula nana Vaccinium uliginosum SLA LDMC shrub enroachment soil temperature permafrost thaw depth Heim, Ramona Julia Bucharova, Anna Brodt, Leya Kamp, Johannes Rieker, Daniel Soromotin, Andrey Yurtaev, Andrey Hölzel, Norbert Post-fire vegetation succession in the Siberian subarctic tundra over 45 years |
topic_facet |
tundra Betula nana Vaccinium uliginosum SLA LDMC shrub enroachment soil temperature permafrost thaw depth |
description |
Wildfires are relatively rare in subarctic tundra ecosystems, but they can strongly change ecosystem properties. Short-term fire effects on subarctic tundra vegetation are well documented, but long-term vegetation recovery has been studied less. The frequency of tundra fires will increase with climate warming. Understanding the long-term effects of fire is necessary to predict future ecosystem changes. We used a space-for-time approach to assess vegetation recovery after fire over more than four decades. We studied soil and vegetation patterns on three large fire scars (>44, 28 and 12 years old) in dry, lichen-dominated forest tundra in Western Siberia. On 60 plots, we determined soil temperature and permafrost thaw depth, sampled vegetation and measured plant functional traits. We assessed trends in NDVI to support the field-based results on vegetation recovery.Soil temperature, permafrost thaw depth and total vegetation cover had recovered to pre-fire levels after >44 years, as well as total vegetation cover. In contrast, after >44 years, functional groups had not recovered to the pre-fire state. Burnt areas had lower lichen and higher bryophyte and shrub cover. The dominating shrub species, Betula nana, exhibited a higher vitality (higher specific leaf area and plant height) on burnt compared with control plots, suggesting a fire legacy effect in shrub growth. Our results confirm patterns of shrub encroachment after fire that were detected before in other parts of the Arctic and Subarctic. In the so far poorly studied Western Siberian forest tundra we demonstrate for the first time, long-term fire-legacies on the functional composition of relatively dry shrub- and lichen-dominated vegetation. Funding provided by: Deutscher Akademischer AustauschdienstCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100001655Award Number: PROMOSFunding provided by: Studienstiftung des Deutschen VolkesCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100004350Award Number: Promotionsstipendium |
format |
Dataset |
author |
Heim, Ramona Julia Bucharova, Anna Brodt, Leya Kamp, Johannes Rieker, Daniel Soromotin, Andrey Yurtaev, Andrey Hölzel, Norbert |
author_facet |
Heim, Ramona Julia Bucharova, Anna Brodt, Leya Kamp, Johannes Rieker, Daniel Soromotin, Andrey Yurtaev, Andrey Hölzel, Norbert |
author_sort |
Heim, Ramona Julia |
title |
Post-fire vegetation succession in the Siberian subarctic tundra over 45 years |
title_short |
Post-fire vegetation succession in the Siberian subarctic tundra over 45 years |
title_full |
Post-fire vegetation succession in the Siberian subarctic tundra over 45 years |
title_fullStr |
Post-fire vegetation succession in the Siberian subarctic tundra over 45 years |
title_full_unstemmed |
Post-fire vegetation succession in the Siberian subarctic tundra over 45 years |
title_sort |
post-fire vegetation succession in the siberian subarctic tundra over 45 years |
publishDate |
2020 |
url |
https://zenodo.org/record/4266767 https://doi.org/10.5061/dryad.sn02v6x2n |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Betula nana permafrost Subarctic Tundra Siberia |
genre_facet |
Arctic Betula nana permafrost Subarctic Tundra Siberia |
op_relation |
doi:10.1101/756163 doi:10.1016/j.scitotenv.2020.143425 https://zenodo.org/communities/dryad https://zenodo.org/record/4266767 https://doi.org/10.5061/dryad.sn02v6x2n oai:zenodo.org:4266767 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.sn02v6x2n10.1101/75616310.1016/j.scitotenv.2020.143425 |
_version_ |
1767957229370081280 |