Present and Future Carbon Balance of Russia's Northern Ecosystems. Final report
Recent increases in the seasonal amplitude of atmospheric CO{sub 2} at high latitudes suggest a widespread biospheric response to high-latitude warming. We have shown that the seasonal amplitude of net ecosystem carbon exchange by northern Siberian ecosystems is greater in disturbed than undisturbed...
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ftosti:oai:osti.gov:763416 2023-07-30T04:01:42+02:00 Present and Future Carbon Balance of Russia's Northern Ecosystems. Final report Chapin, F. Stuart III Zimov, Sergei A. 2008-02-05 application/pdf http://www.osti.gov/servlets/purl/763416 https://www.osti.gov/biblio/763416 https://doi.org/10.2172/763416 unknown http://www.osti.gov/servlets/purl/763416 https://www.osti.gov/biblio/763416 https://doi.org/10.2172/763416 doi:10.2172/763416 54 ENVIRONMENTAL SCIENCES CARBON CYCLE ECOSYSTEMS RESPIRATION RUSSIAN FEDERATION CARBON DIOXIDE ATMOSPHERIC CHEMISTRY SEASONAL VARIATIONS 2008 ftosti https://doi.org/10.2172/763416 2023-07-11T08:36:54Z Recent increases in the seasonal amplitude of atmospheric CO{sub 2} at high latitudes suggest a widespread biospheric response to high-latitude warming. We have shown that the seasonal amplitude of net ecosystem carbon exchange by northern Siberian ecosystems is greater in disturbed than undisturbed sites, due to increased summer influx and increased winter efflux. Net carbon gain in summer and respiration in winter were greater in a cool than in a warm year, especially in disturbed sites and did not differ between high-arctic and treeline sites, suggesting that high-latitude warming, if it occurred, would have little effect or would reduce seasonal amplitude of carbon exchange. We suggest that increased disturbance contributes significantly to the amplified seasonal cycle of atmospheric CO{sub 2} at high latitudes. Other/Unknown Material Arctic SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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54 ENVIRONMENTAL SCIENCES CARBON CYCLE ECOSYSTEMS RESPIRATION RUSSIAN FEDERATION CARBON DIOXIDE ATMOSPHERIC CHEMISTRY SEASONAL VARIATIONS |
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54 ENVIRONMENTAL SCIENCES CARBON CYCLE ECOSYSTEMS RESPIRATION RUSSIAN FEDERATION CARBON DIOXIDE ATMOSPHERIC CHEMISTRY SEASONAL VARIATIONS Chapin, F. Stuart III Zimov, Sergei A. Present and Future Carbon Balance of Russia's Northern Ecosystems. Final report |
topic_facet |
54 ENVIRONMENTAL SCIENCES CARBON CYCLE ECOSYSTEMS RESPIRATION RUSSIAN FEDERATION CARBON DIOXIDE ATMOSPHERIC CHEMISTRY SEASONAL VARIATIONS |
description |
Recent increases in the seasonal amplitude of atmospheric CO{sub 2} at high latitudes suggest a widespread biospheric response to high-latitude warming. We have shown that the seasonal amplitude of net ecosystem carbon exchange by northern Siberian ecosystems is greater in disturbed than undisturbed sites, due to increased summer influx and increased winter efflux. Net carbon gain in summer and respiration in winter were greater in a cool than in a warm year, especially in disturbed sites and did not differ between high-arctic and treeline sites, suggesting that high-latitude warming, if it occurred, would have little effect or would reduce seasonal amplitude of carbon exchange. We suggest that increased disturbance contributes significantly to the amplified seasonal cycle of atmospheric CO{sub 2} at high latitudes. |
author |
Chapin, F. Stuart III Zimov, Sergei A. |
author_facet |
Chapin, F. Stuart III Zimov, Sergei A. |
author_sort |
Chapin, F. Stuart III |
title |
Present and Future Carbon Balance of Russia's Northern Ecosystems. Final report |
title_short |
Present and Future Carbon Balance of Russia's Northern Ecosystems. Final report |
title_full |
Present and Future Carbon Balance of Russia's Northern Ecosystems. Final report |
title_fullStr |
Present and Future Carbon Balance of Russia's Northern Ecosystems. Final report |
title_full_unstemmed |
Present and Future Carbon Balance of Russia's Northern Ecosystems. Final report |
title_sort |
present and future carbon balance of russia's northern ecosystems. final report |
publishDate |
2008 |
url |
http://www.osti.gov/servlets/purl/763416 https://www.osti.gov/biblio/763416 https://doi.org/10.2172/763416 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
http://www.osti.gov/servlets/purl/763416 https://www.osti.gov/biblio/763416 https://doi.org/10.2172/763416 doi:10.2172/763416 |
op_doi |
https://doi.org/10.2172/763416 |
_version_ |
1772812473125044224 |