Daily carbon dioxide fluxes in Arctic tundra and forest-tundra ecosystems in response to temperature and precipitation extremes
The development and functioning of landscapes in different regions of the world, especially at polar latitudes, may be significantly affected by the increased frequency of extreme weather events associated with modern climate change. These events can influence regional biogeochemical cycles, includi...
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IOP Publishing
2025-01-01
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| Series: | Environmental Research Communications |
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| Online Access: | https://doi.org/10.1088/2515-7620/add85e |
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| author | Elizaveta Gorbarenko Daria Gushchina Maria Tarasova Irina Zheleznova Ekaterina Emelianova Ravil Gibadullin Alexander Osipov Alexander Olchev |
| author_facet | Elizaveta Gorbarenko Daria Gushchina Maria Tarasova Irina Zheleznova Ekaterina Emelianova Ravil Gibadullin Alexander Osipov Alexander Olchev |
| author_sort | Elizaveta Gorbarenko |
| collection | DOAJ |
| description | The development and functioning of landscapes in different regions of the world, especially at polar latitudes, may be significantly affected by the increased frequency of extreme weather events associated with modern climate change. These events can influence regional biogeochemical cycles, including water, carbon, and nitrogen cycles, with serious implications for ecosystem functioning and canopy production. The main objective of this study is to assess the spatial variability in the response of daily net ecosystem CO _2 exchange (NEE) of Northern Hemisphere tundra and forest-tundra landscapes to anomalous temperature and precipitation events during the growing season. These landscape types are considered to be among the most vulnerable to changes in environmental conditions under a changing climate. For our data analysis, we use meteorological and CO _2 flux data from the global FLUXNET and regional AmeriFlux networks, as well as the ERA5 reanalysis dataset. Analysis of CO _2 flux anomalies in tundra and forest-tundra ecosystems revealed a wide range of observed NEE responses to anomalous temperature and precipitation events during the growing season, depending on geographic location and landscape type. In contrast to most previous studies, the stressed CO _2 uptake and higher CO _2 emissions under anomalously high temperatures were mostly detected at the southern boundary of the polar region, where heat waves are more frequent. Prevailing CO _2 uptake during anomalously high temperature days was found in deciduous broadleaf forests and open shrublands. The effect of anomalously low temperature is manifested by an increase in CO _2 emissions. The response of CO _2 fluxes to anomalously high and low precipitation is quite similar regardless of the time scale (short-term or long-term response). In most tundra and forest-tundra ecosystems, heavy precipitation typically results in increased CO _2 emissions to the atmosphere. The prolonged precipitation deficit is accompanied by a prevailing CO _2 uptake. |
| format | Article |
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| institution | OA Journals |
| issn | 2515-7620 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| series | Environmental Research Communications |
| spelling | doaj-art-0b6e9461549b44d09b19205efeaaf89e2025-08-20T02:26:23ZengIOP PublishingEnvironmental Research Communications2515-76202025-01-017505502210.1088/2515-7620/add85eDaily carbon dioxide fluxes in Arctic tundra and forest-tundra ecosystems in response to temperature and precipitation extremesElizaveta Gorbarenko0https://orcid.org/0009-0009-7086-2814Daria Gushchina1https://orcid.org/0000-0002-9892-2040Maria Tarasova2https://orcid.org/0000-0003-1507-3088Irina Zheleznova3https://orcid.org/0000-0002-4495-8742Ekaterina Emelianova4Ravil Gibadullin5https://orcid.org/0009-0005-0496-1970Alexander Osipov6https://orcid.org/0000-0002-6659-2921Alexander Olchev7https://orcid.org/0000-0002-6144-5826Department of Meteorology and Climatology, Faculty of Geography, Lomonosov Moscow State University , GSP-1, Leninskie Gory, 1, 119991, Moscow, Russia; A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Science, Leninsky Prospekt 33, Moscow 119071, RussiaDepartment of Meteorology and Climatology, Faculty of Geography, Lomonosov Moscow State University , GSP-1, Leninskie Gory, 1, 119991, Moscow, RussiaDepartment of Meteorology and Climatology, Faculty of Geography, Lomonosov Moscow State University , GSP-1, Leninskie Gory, 1, 119991, Moscow, RussiaDepartment of Meteorology and Climatology, Faculty of Geography, Lomonosov Moscow State University , GSP-1, Leninskie Gory, 1, 119991, Moscow, RussiaA.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Science, Leninsky Prospekt 33, Moscow 119071, RussiaDepartment of Meteorology and Climatology, Faculty of Geography, Lomonosov Moscow State University , GSP-1, Leninskie Gory, 1, 119991, Moscow, RussiaDepartment of Meteorology and Climatology, Faculty of Geography, Lomonosov Moscow State University , GSP-1, Leninskie Gory, 1, 119991, Moscow, RussiaDepartment of Meteorology and Climatology, Faculty of Geography, Lomonosov Moscow State University , GSP-1, Leninskie Gory, 1, 119991, Moscow, RussiaThe development and functioning of landscapes in different regions of the world, especially at polar latitudes, may be significantly affected by the increased frequency of extreme weather events associated with modern climate change. These events can influence regional biogeochemical cycles, including water, carbon, and nitrogen cycles, with serious implications for ecosystem functioning and canopy production. The main objective of this study is to assess the spatial variability in the response of daily net ecosystem CO _2 exchange (NEE) of Northern Hemisphere tundra and forest-tundra landscapes to anomalous temperature and precipitation events during the growing season. These landscape types are considered to be among the most vulnerable to changes in environmental conditions under a changing climate. For our data analysis, we use meteorological and CO _2 flux data from the global FLUXNET and regional AmeriFlux networks, as well as the ERA5 reanalysis dataset. Analysis of CO _2 flux anomalies in tundra and forest-tundra ecosystems revealed a wide range of observed NEE responses to anomalous temperature and precipitation events during the growing season, depending on geographic location and landscape type. In contrast to most previous studies, the stressed CO _2 uptake and higher CO _2 emissions under anomalously high temperatures were mostly detected at the southern boundary of the polar region, where heat waves are more frequent. Prevailing CO _2 uptake during anomalously high temperature days was found in deciduous broadleaf forests and open shrublands. The effect of anomalously low temperature is manifested by an increase in CO _2 emissions. The response of CO _2 fluxes to anomalously high and low precipitation is quite similar regardless of the time scale (short-term or long-term response). In most tundra and forest-tundra ecosystems, heavy precipitation typically results in increased CO _2 emissions to the atmosphere. The prolonged precipitation deficit is accompanied by a prevailing CO _2 uptake.https://doi.org/10.1088/2515-7620/add85etemperature and precipitation extremescarbon dioxide fluxesArctic tundra and forest tundraFLUXNETreanalysis |
| spellingShingle | Elizaveta Gorbarenko Daria Gushchina Maria Tarasova Irina Zheleznova Ekaterina Emelianova Ravil Gibadullin Alexander Osipov Alexander Olchev Daily carbon dioxide fluxes in Arctic tundra and forest-tundra ecosystems in response to temperature and precipitation extremes Environmental Research Communications temperature and precipitation extremes carbon dioxide fluxes Arctic tundra and forest tundra FLUXNET reanalysis |
| title | Daily carbon dioxide fluxes in Arctic tundra and forest-tundra ecosystems in response to temperature and precipitation extremes |
| title_full | Daily carbon dioxide fluxes in Arctic tundra and forest-tundra ecosystems in response to temperature and precipitation extremes |
| title_fullStr | Daily carbon dioxide fluxes in Arctic tundra and forest-tundra ecosystems in response to temperature and precipitation extremes |
| title_full_unstemmed | Daily carbon dioxide fluxes in Arctic tundra and forest-tundra ecosystems in response to temperature and precipitation extremes |
| title_short | Daily carbon dioxide fluxes in Arctic tundra and forest-tundra ecosystems in response to temperature and precipitation extremes |
| title_sort | daily carbon dioxide fluxes in arctic tundra and forest tundra ecosystems in response to temperature and precipitation extremes |
| topic | temperature and precipitation extremes carbon dioxide fluxes Arctic tundra and forest tundra FLUXNET reanalysis |
| url | https://doi.org/10.1088/2515-7620/add85e |
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