Long-Term Drainage Reduces CO2 Uptake and CH4 Emissions in a Siberian Permafrost Ecosystem
Permafrost landscapes in northern high latitudes with their massive organic carbon stocks are an important, poorly known, component of the global carbon cycle. However, in light of future Arctic warming, the sustainability of these carbon pools is uncertain. To a large part, this is due to a limited...
Published in: | Global Biogeochemical Cycles |
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Main Authors: | , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Wiley/Blackwell
2019
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Online Access: | http://hdl.handle.net/10138/308103 |
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HELDA – University of Helsinki Open Repository |
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ftunivhelsihelda |
language |
English |
topic |
eddy-covariance carbon fluxes permafrost climate change Arctic CARBON-DIOXIDE ARCTIC TUNDRA COLD SEASON TEMPERATURE-DEPENDENCE ATMOSPHERE EXCHANGE METHANE EMISSIONS FLUX MEASUREMENTS POLYGONAL TUNDRA TUSSOCK TUNDRA GROWING-SEASON 114 Physical sciences |
spellingShingle |
eddy-covariance carbon fluxes permafrost climate change Arctic CARBON-DIOXIDE ARCTIC TUNDRA COLD SEASON TEMPERATURE-DEPENDENCE ATMOSPHERE EXCHANGE METHANE EMISSIONS FLUX MEASUREMENTS POLYGONAL TUNDRA TUSSOCK TUNDRA GROWING-SEASON 114 Physical sciences Kittler, Fanny Heimann, Martin Kolle, Olaf Zimov, Nikita Zimov, Sergei Gockede, Mathias Long-Term Drainage Reduces CO2 Uptake and CH4 Emissions in a Siberian Permafrost Ecosystem |
topic_facet |
eddy-covariance carbon fluxes permafrost climate change Arctic CARBON-DIOXIDE ARCTIC TUNDRA COLD SEASON TEMPERATURE-DEPENDENCE ATMOSPHERE EXCHANGE METHANE EMISSIONS FLUX MEASUREMENTS POLYGONAL TUNDRA TUSSOCK TUNDRA GROWING-SEASON 114 Physical sciences |
description |
Permafrost landscapes in northern high latitudes with their massive organic carbon stocks are an important, poorly known, component of the global carbon cycle. However, in light of future Arctic warming, the sustainability of these carbon pools is uncertain. To a large part, this is due to a limited understanding of the carbon cycle processes because of sparse observations in Arctic permafrost ecosystems. Here we present an eddy covariance data set covering more than 3 years of continuous CO2 and CH4 flux observations within a moist tussock tundra ecosystem near Chersky in north-eastern Siberia. Through parallel observations of a disturbed (drained) area and a control area nearby, we aim to evaluate the long-term effects of a persistently lowered water table on the net vertical carbon exchange budgets and the dominating biogeochemical mechanisms. Persistently drier soils trigger systematic shifts in the tundra ecosystem carbon cycle patterns. Both, uptake rates of CO2 and emissions of CH4 decreased. Year-round measurements emphasize the importance of the non-growing seasonin particular the zero-curtain period in the fallto the annual budget. Approximately 60% of the CO2 uptake in the growing season is lost during the cold seasons, while CH4 emissions during the non-growing season account for 30% of the annual budget. Year-to-year variability in temperature conditions during the late growing season was identified as the primary control of the interannual variability observed in the CO2 and CH4 fluxes. Peer reviewed |
author2 |
Department of Physics |
format |
Article in Journal/Newspaper |
author |
Kittler, Fanny Heimann, Martin Kolle, Olaf Zimov, Nikita Zimov, Sergei Gockede, Mathias |
author_facet |
Kittler, Fanny Heimann, Martin Kolle, Olaf Zimov, Nikita Zimov, Sergei Gockede, Mathias |
author_sort |
Kittler, Fanny |
title |
Long-Term Drainage Reduces CO2 Uptake and CH4 Emissions in a Siberian Permafrost Ecosystem |
title_short |
Long-Term Drainage Reduces CO2 Uptake and CH4 Emissions in a Siberian Permafrost Ecosystem |
title_full |
Long-Term Drainage Reduces CO2 Uptake and CH4 Emissions in a Siberian Permafrost Ecosystem |
title_fullStr |
Long-Term Drainage Reduces CO2 Uptake and CH4 Emissions in a Siberian Permafrost Ecosystem |
title_full_unstemmed |
Long-Term Drainage Reduces CO2 Uptake and CH4 Emissions in a Siberian Permafrost Ecosystem |
title_sort |
long-term drainage reduces co2 uptake and ch4 emissions in a siberian permafrost ecosystem |
publisher |
Wiley/Blackwell |
publishDate |
2019 |
url |
http://hdl.handle.net/10138/308103 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Chersky Climate change permafrost Tundra Siberia |
genre_facet |
Arctic Chersky Climate change permafrost Tundra Siberia |
op_relation |
10.1002/2017GB005774 This work was supported by the Max-Planck Society, the European Commission (PAGE21 project, FP7-ENV-2011, grant agreement 282700, and PerCCOM project, FP7-PEOPLE-2012-CIG, grant agreement PCIG12-GA-201-333796), the German Ministry of Education and Research (CarboPerm-Project, BMBF grant 03G0836G), the AXA Research Fund (PDOC_2012_W2 campaign, ARF fellowship M. Gockede), and the European Science Foundation (ESF for the activity "Tall Tower and Surface Research Network for Verification of Climate Relevant Emissions of Human Origin", Short Visit Grant, fellowship F. Kittler). The authors appreciate the efforts of NESS staff members, especially Galina Zimova and Nastya Zimova, for organizing field work; they also recognize the team from the Field Experiments and Instrumentation group (MPI-BGC), especially Martin Hertel, for supporting field work. We applied first-last-author-emphasis and equal-contribution (alphabetical sequence) methods for the order of authors (Tscharntke et al., 2007). We thank both anonymous reviewers for their valuable feedback and helpful comments and suggestions that improved our manuscript. Data are available from the European Fluxes Database Cluster (http://www.europefluxdata.eu/home) with site-code "RU-Che" for the control site and "RU-Ch2" for the drained site. Kittler , F , Heimann , M , Kolle , O , Zimov , N , Zimov , S & Gockede , M 2017 , ' Long-Term Drainage Reduces CO2 Uptake and CH4 Emissions in a Siberian Permafrost Ecosystem ' , Global Biogeochemical Cycles , vol. 31 , no. 12 , pp. 1704-1717 . https://doi.org/10.1002/2017GB005774 ORCID: /0000-0001-6296-5113/work/42135935 85038612870 9febf91f-8719-44e0-ad67-dd79407683a3 http://hdl.handle.net/10138/308103 000419710100001 |
op_rights |
cc_by_nc_sa openAccess info:eu-repo/semantics/openAccess |
container_title |
Global Biogeochemical Cycles |
container_volume |
31 |
container_issue |
12 |
container_start_page |
1704 |
op_container_end_page |
1717 |
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1787422097806458880 |
spelling |
ftunivhelsihelda:oai:helda.helsinki.fi:10138/308103 2024-01-07T09:41:17+01:00 Long-Term Drainage Reduces CO2 Uptake and CH4 Emissions in a Siberian Permafrost Ecosystem Kittler, Fanny Heimann, Martin Kolle, Olaf Zimov, Nikita Zimov, Sergei Gockede, Mathias Department of Physics 2019-12-11T15:56:01Z 14 application/pdf http://hdl.handle.net/10138/308103 eng eng Wiley/Blackwell 10.1002/2017GB005774 This work was supported by the Max-Planck Society, the European Commission (PAGE21 project, FP7-ENV-2011, grant agreement 282700, and PerCCOM project, FP7-PEOPLE-2012-CIG, grant agreement PCIG12-GA-201-333796), the German Ministry of Education and Research (CarboPerm-Project, BMBF grant 03G0836G), the AXA Research Fund (PDOC_2012_W2 campaign, ARF fellowship M. Gockede), and the European Science Foundation (ESF for the activity "Tall Tower and Surface Research Network for Verification of Climate Relevant Emissions of Human Origin", Short Visit Grant, fellowship F. Kittler). The authors appreciate the efforts of NESS staff members, especially Galina Zimova and Nastya Zimova, for organizing field work; they also recognize the team from the Field Experiments and Instrumentation group (MPI-BGC), especially Martin Hertel, for supporting field work. We applied first-last-author-emphasis and equal-contribution (alphabetical sequence) methods for the order of authors (Tscharntke et al., 2007). We thank both anonymous reviewers for their valuable feedback and helpful comments and suggestions that improved our manuscript. Data are available from the European Fluxes Database Cluster (http://www.europefluxdata.eu/home) with site-code "RU-Che" for the control site and "RU-Ch2" for the drained site. Kittler , F , Heimann , M , Kolle , O , Zimov , N , Zimov , S & Gockede , M 2017 , ' Long-Term Drainage Reduces CO2 Uptake and CH4 Emissions in a Siberian Permafrost Ecosystem ' , Global Biogeochemical Cycles , vol. 31 , no. 12 , pp. 1704-1717 . https://doi.org/10.1002/2017GB005774 ORCID: /0000-0001-6296-5113/work/42135935 85038612870 9febf91f-8719-44e0-ad67-dd79407683a3 http://hdl.handle.net/10138/308103 000419710100001 cc_by_nc_sa openAccess info:eu-repo/semantics/openAccess eddy-covariance carbon fluxes permafrost climate change Arctic CARBON-DIOXIDE ARCTIC TUNDRA COLD SEASON TEMPERATURE-DEPENDENCE ATMOSPHERE EXCHANGE METHANE EMISSIONS FLUX MEASUREMENTS POLYGONAL TUNDRA TUSSOCK TUNDRA GROWING-SEASON 114 Physical sciences Article publishedVersion 2019 ftunivhelsihelda 2023-12-14T00:03:58Z Permafrost landscapes in northern high latitudes with their massive organic carbon stocks are an important, poorly known, component of the global carbon cycle. However, in light of future Arctic warming, the sustainability of these carbon pools is uncertain. To a large part, this is due to a limited understanding of the carbon cycle processes because of sparse observations in Arctic permafrost ecosystems. Here we present an eddy covariance data set covering more than 3 years of continuous CO2 and CH4 flux observations within a moist tussock tundra ecosystem near Chersky in north-eastern Siberia. Through parallel observations of a disturbed (drained) area and a control area nearby, we aim to evaluate the long-term effects of a persistently lowered water table on the net vertical carbon exchange budgets and the dominating biogeochemical mechanisms. Persistently drier soils trigger systematic shifts in the tundra ecosystem carbon cycle patterns. Both, uptake rates of CO2 and emissions of CH4 decreased. Year-round measurements emphasize the importance of the non-growing seasonin particular the zero-curtain period in the fallto the annual budget. Approximately 60% of the CO2 uptake in the growing season is lost during the cold seasons, while CH4 emissions during the non-growing season account for 30% of the annual budget. Year-to-year variability in temperature conditions during the late growing season was identified as the primary control of the interannual variability observed in the CO2 and CH4 fluxes. Peer reviewed Article in Journal/Newspaper Arctic Chersky Climate change permafrost Tundra Siberia HELDA – University of Helsinki Open Repository Arctic Global Biogeochemical Cycles 31 12 1704 1717 |