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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University of California, Berkeley
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ftunivnotexas:info:ark/67531/metadc720921 2023-05-15T15:02:48+02:00 Present and Future Carbon Balance of Russia's Northern Ecosystems. Final report Chapin, F. Stuart, III Zimov, Sergei A. United States. Department of Energy. Office of Energy Research. 2000-08-28 10 p. Text https://doi.org/10.2172/763416 https://digital.library.unt.edu/ark:/67531/metadc720921/ English eng University of California, Berkeley grantno: FG03-95ER62014 doi:10.2172/763416 osti: 763416 https://digital.library.unt.edu/ark:/67531/metadc720921/ ark: ark:/67531/metadc720921 Other Information: PBD: 28 Aug 2000 Respiration Carbon Dioxide Seasonal Variations Carbon Cycle Atmospheric Chemistry 54 Environmental Sciences Ecosystems Russian Federation Report 2000 ftunivnotexas https://doi.org/10.2172/763416 2019-05-25T22:08:03Z 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. Report Arctic University of North Texas: UNT Digital Library Arctic |
institution |
Open Polar |
collection |
University of North Texas: UNT Digital Library |
op_collection_id |
ftunivnotexas |
language |
English |
topic |
Respiration Carbon Dioxide Seasonal Variations Carbon Cycle Atmospheric Chemistry 54 Environmental Sciences Ecosystems Russian Federation |
spellingShingle |
Respiration Carbon Dioxide Seasonal Variations Carbon Cycle Atmospheric Chemistry 54 Environmental Sciences Ecosystems Russian Federation Chapin, F. Stuart, III Zimov, Sergei A. Present and Future Carbon Balance of Russia's Northern Ecosystems. Final report |
topic_facet |
Respiration Carbon Dioxide Seasonal Variations Carbon Cycle Atmospheric Chemistry 54 Environmental Sciences Ecosystems Russian Federation |
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. |
author2 |
United States. Department of Energy. Office of Energy Research. |
format |
Report |
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 |
publisher |
University of California, Berkeley |
publishDate |
2000 |
url |
https://doi.org/10.2172/763416 https://digital.library.unt.edu/ark:/67531/metadc720921/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Other Information: PBD: 28 Aug 2000 |
op_relation |
grantno: FG03-95ER62014 doi:10.2172/763416 osti: 763416 https://digital.library.unt.edu/ark:/67531/metadc720921/ ark: ark:/67531/metadc720921 |
op_doi |
https://doi.org/10.2172/763416 |
_version_ |
1766334729636806656 |