Fire and vegetation dynamics in northwest Siberia during the last 60 years based on high-resolution remote sensing
The rapidly warming Arctic undergoes transitions that can influence global carbon balance. One of the key processes is the shift towards vegetation types with higher biomass underlining a stronger carbon sink. The shift is predicted by bioclimatic models based on abiotic climatic factors, but it is...
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Language: | English |
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COPERNICUS GESELLSCHAFT MBH
2021
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Online Access: | http://hdl.handle.net/10138/328276 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/328276 2024-01-07T09:41:32+01:00 Fire and vegetation dynamics in northwest Siberia during the last 60 years based on high-resolution remote sensing Sizov, Oleg Ezhova, Ekaterina Tsymbarovich, Petr Soromotin, A Prihod'ko, Nikolay Petäjä, Tuukka Zilitinkevich, Sergej Kulmala, Markku Bäck, Jaana Köster, Kajar Institute for Atmospheric and Earth System Research (INAR) Global Atmosphere-Earth surface feedbacks Department of Physics INAR Physics Viikki Plant Science Centre (ViPS) Department of Forest Sciences Forest Ecology and Management Ecosystem processes (INAR Forest Sciences) 2021-03-23T07:42:04Z 22 application/pdf http://hdl.handle.net/10138/328276 eng eng COPERNICUS GESELLSCHAFT MBH 10.5194/bg-18-207-2021 Sizov , O , Ezhova , E , Tsymbarovich , P , Soromotin , A , Prihod'ko , N , Petäjä , T , Zilitinkevich , S , Kulmala , M , Bäck , J & Köster , K 2021 , ' Fire and vegetation dynamics in northwest Siberia during the last 60 years based on high-resolution remote sensing ' , Biogeosciences , vol. 18 , no. 1 , pp. 207-228 . https://doi.org/10.5194/bg-18-207-2021 ORCID: /0000-0002-6107-667X/work/91246893 ORCID: /0000-0002-3909-5436/work/91247562 ORCID: /0000-0003-1988-5788/work/91249512 ORCID: /0000-0003-2770-9143/work/91250236 ORCID: /0000-0002-1881-9044/work/102822733 85100057453 b59d1460-fd5c-4916-859a-8aa48143a3af http://hdl.handle.net/10138/328276 000611015900001 cc_by openAccess info:eu-repo/semantics/openAccess 1181 Ecology evolutionary biology 4112 Forestry 1171 Geosciences EURASIAN EXPERIMENT PEEX SOIL THERMAL REGIMES CLIMATE-CHANGE ARCTIC TUNDRA TREE LINE FOREST FEEDBACKS EXPANSION COMMUNITIES TRANSITION Article publishedVersion 2021 ftunivhelsihelda 2023-12-14T00:08:13Z The rapidly warming Arctic undergoes transitions that can influence global carbon balance. One of the key processes is the shift towards vegetation types with higher biomass underlining a stronger carbon sink. The shift is predicted by bioclimatic models based on abiotic climatic factors, but it is not always confirmed with observations. Recent studies highlight the role of disturbances in the shift. Here we use high-resolution remote sensing to study the process of transition from tundra to forest and its connection to wildfires in the 20 000 km(2) area in northwest Siberia. Overall, 40 % of the study area was burned during a 60-year period. Three quarters of the burned areas were dry tundra. About 10 % of the study area experienced two-three fires with an interval of 15-60 years suggesting a shorter fire return interval than that reported earlier for the northern areas of central Siberia (130-350 years). Based on our results, the shift in vegetation (within the 60-year period) occurred in 40 %-85 % of the burned territories. All fire-affected territories were flat; therefore no effect of topography was detected. Oppositely, in the undisturbed areas, a transition of vegetation was observed only in 6 %-15 % of the territories, characterized by steeper topographic slopes. Our results suggest a strong role of disturbances in the tree advance in northwest Siberia. Peer reviewed Article in Journal/Newspaper Arctic Climate change Tundra Siberia HELDA – University of Helsinki Open Repository Arctic Biogeosciences 18 1 207 228 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
1181 Ecology evolutionary biology 4112 Forestry 1171 Geosciences EURASIAN EXPERIMENT PEEX SOIL THERMAL REGIMES CLIMATE-CHANGE ARCTIC TUNDRA TREE LINE FOREST FEEDBACKS EXPANSION COMMUNITIES TRANSITION |
spellingShingle |
1181 Ecology evolutionary biology 4112 Forestry 1171 Geosciences EURASIAN EXPERIMENT PEEX SOIL THERMAL REGIMES CLIMATE-CHANGE ARCTIC TUNDRA TREE LINE FOREST FEEDBACKS EXPANSION COMMUNITIES TRANSITION Sizov, Oleg Ezhova, Ekaterina Tsymbarovich, Petr Soromotin, A Prihod'ko, Nikolay Petäjä, Tuukka Zilitinkevich, Sergej Kulmala, Markku Bäck, Jaana Köster, Kajar Fire and vegetation dynamics in northwest Siberia during the last 60 years based on high-resolution remote sensing |
topic_facet |
1181 Ecology evolutionary biology 4112 Forestry 1171 Geosciences EURASIAN EXPERIMENT PEEX SOIL THERMAL REGIMES CLIMATE-CHANGE ARCTIC TUNDRA TREE LINE FOREST FEEDBACKS EXPANSION COMMUNITIES TRANSITION |
description |
The rapidly warming Arctic undergoes transitions that can influence global carbon balance. One of the key processes is the shift towards vegetation types with higher biomass underlining a stronger carbon sink. The shift is predicted by bioclimatic models based on abiotic climatic factors, but it is not always confirmed with observations. Recent studies highlight the role of disturbances in the shift. Here we use high-resolution remote sensing to study the process of transition from tundra to forest and its connection to wildfires in the 20 000 km(2) area in northwest Siberia. Overall, 40 % of the study area was burned during a 60-year period. Three quarters of the burned areas were dry tundra. About 10 % of the study area experienced two-three fires with an interval of 15-60 years suggesting a shorter fire return interval than that reported earlier for the northern areas of central Siberia (130-350 years). Based on our results, the shift in vegetation (within the 60-year period) occurred in 40 %-85 % of the burned territories. All fire-affected territories were flat; therefore no effect of topography was detected. Oppositely, in the undisturbed areas, a transition of vegetation was observed only in 6 %-15 % of the territories, characterized by steeper topographic slopes. Our results suggest a strong role of disturbances in the tree advance in northwest Siberia. Peer reviewed |
author2 |
Institute for Atmospheric and Earth System Research (INAR) Global Atmosphere-Earth surface feedbacks Department of Physics INAR Physics Viikki Plant Science Centre (ViPS) Department of Forest Sciences Forest Ecology and Management Ecosystem processes (INAR Forest Sciences) |
format |
Article in Journal/Newspaper |
author |
Sizov, Oleg Ezhova, Ekaterina Tsymbarovich, Petr Soromotin, A Prihod'ko, Nikolay Petäjä, Tuukka Zilitinkevich, Sergej Kulmala, Markku Bäck, Jaana Köster, Kajar |
author_facet |
Sizov, Oleg Ezhova, Ekaterina Tsymbarovich, Petr Soromotin, A Prihod'ko, Nikolay Petäjä, Tuukka Zilitinkevich, Sergej Kulmala, Markku Bäck, Jaana Köster, Kajar |
author_sort |
Sizov, Oleg |
title |
Fire and vegetation dynamics in northwest Siberia during the last 60 years based on high-resolution remote sensing |
title_short |
Fire and vegetation dynamics in northwest Siberia during the last 60 years based on high-resolution remote sensing |
title_full |
Fire and vegetation dynamics in northwest Siberia during the last 60 years based on high-resolution remote sensing |
title_fullStr |
Fire and vegetation dynamics in northwest Siberia during the last 60 years based on high-resolution remote sensing |
title_full_unstemmed |
Fire and vegetation dynamics in northwest Siberia during the last 60 years based on high-resolution remote sensing |
title_sort |
fire and vegetation dynamics in northwest siberia during the last 60 years based on high-resolution remote sensing |
publisher |
COPERNICUS GESELLSCHAFT MBH |
publishDate |
2021 |
url |
http://hdl.handle.net/10138/328276 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Tundra Siberia |
genre_facet |
Arctic Climate change Tundra Siberia |
op_relation |
10.5194/bg-18-207-2021 Sizov , O , Ezhova , E , Tsymbarovich , P , Soromotin , A , Prihod'ko , N , Petäjä , T , Zilitinkevich , S , Kulmala , M , Bäck , J & Köster , K 2021 , ' Fire and vegetation dynamics in northwest Siberia during the last 60 years based on high-resolution remote sensing ' , Biogeosciences , vol. 18 , no. 1 , pp. 207-228 . https://doi.org/10.5194/bg-18-207-2021 ORCID: /0000-0002-6107-667X/work/91246893 ORCID: /0000-0002-3909-5436/work/91247562 ORCID: /0000-0003-1988-5788/work/91249512 ORCID: /0000-0003-2770-9143/work/91250236 ORCID: /0000-0002-1881-9044/work/102822733 85100057453 b59d1460-fd5c-4916-859a-8aa48143a3af http://hdl.handle.net/10138/328276 000611015900001 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Biogeosciences |
container_volume |
18 |
container_issue |
1 |
container_start_page |
207 |
op_container_end_page |
228 |
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