Decelerating Autumn CO2 Release With Warming Induced by Attenuated Temperature Dependence of Respiration in Northern Ecosystems
Feedbacks from the carbon cycle in boreal and arctic ecosystems can significantly affect climate change, but the effects of climate change on the high-latitude carbon cycle during the dormant period remain uncertain. By analyzing the long-term atmospheric CO2 concentration record from Point Barrow i...
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ftuabarcelonapb:oai:ddd.uab.cat:203567 2023-05-15T15:03:13+02:00 Decelerating Autumn CO2 Release With Warming Induced by Attenuated Temperature Dependence of Respiration in Northern Ecosystems Liu, Dan Piao, Shilong Wang, Tao Wang, Xuhui Wang, Xiaoyi Ding, Jinzhi Ciais, Philippe Peñuelas, Josep Janssens, Ivan 2018 application/pdf https://ddd.uab.cat/record/203567 eng eng Geophysical Research Letters Vol. 45, Issue 11 (June 2018), p. 5562-5571 https://ddd.uab.cat/record/203567 urn:10.1029/2018GL077447 urn:oai:ddd.uab.cat:203567 urn:scopus_id:85048961194 urn:wos_id:000436249900039 urn:altmetric_id:43787024 urn:oai:egreta.uab.cat:publications/252e72dd-598c-4473-9497-93f341ab4afe urn:articleid:19448007v45n11p5562 open access Tots els drets reservats. https://rightsstatements.org/vocab/InC/1.0/ Article 2018 ftuabarcelonapb 2023-02-06T21:16:54Z Feedbacks from the carbon cycle in boreal and arctic ecosystems can significantly affect climate change, but the effects of climate change on the high-latitude carbon cycle during the dormant period remain uncertain. By analyzing the long-term atmospheric CO2 concentration record from Point Barrow in Alaska, we show that warming significantly boosts net CO2 release in autumn over the period 1974-2014. But this warming-stimulated effect has been attenuated since 1997. This deceleration of net CO2 release with warming is ascribed to the attenuation in respiration response to temperature rather than changing relationship between temperature and productivity or changes in atmospheric transport, fossil fuel emissions, or air-sea CO2 exchanges. The attenuated respiration response is likely due to decoupling between temperature and plant-derived carbon inputs to soil for decomposition. Contrary to previous suggestions, warming no longer results in a higher autumn net CO2 release. Article in Journal/Newspaper Arctic Barrow Climate change Point Barrow Alaska Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB Arctic Geophysical Research Letters 45 11 5562 5571 |
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Open Polar |
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Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB |
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ftuabarcelonapb |
language |
English |
description |
Feedbacks from the carbon cycle in boreal and arctic ecosystems can significantly affect climate change, but the effects of climate change on the high-latitude carbon cycle during the dormant period remain uncertain. By analyzing the long-term atmospheric CO2 concentration record from Point Barrow in Alaska, we show that warming significantly boosts net CO2 release in autumn over the period 1974-2014. But this warming-stimulated effect has been attenuated since 1997. This deceleration of net CO2 release with warming is ascribed to the attenuation in respiration response to temperature rather than changing relationship between temperature and productivity or changes in atmospheric transport, fossil fuel emissions, or air-sea CO2 exchanges. The attenuated respiration response is likely due to decoupling between temperature and plant-derived carbon inputs to soil for decomposition. Contrary to previous suggestions, warming no longer results in a higher autumn net CO2 release. |
format |
Article in Journal/Newspaper |
author |
Liu, Dan Piao, Shilong Wang, Tao Wang, Xuhui Wang, Xiaoyi Ding, Jinzhi Ciais, Philippe Peñuelas, Josep Janssens, Ivan |
spellingShingle |
Liu, Dan Piao, Shilong Wang, Tao Wang, Xuhui Wang, Xiaoyi Ding, Jinzhi Ciais, Philippe Peñuelas, Josep Janssens, Ivan Decelerating Autumn CO2 Release With Warming Induced by Attenuated Temperature Dependence of Respiration in Northern Ecosystems |
author_facet |
Liu, Dan Piao, Shilong Wang, Tao Wang, Xuhui Wang, Xiaoyi Ding, Jinzhi Ciais, Philippe Peñuelas, Josep Janssens, Ivan |
author_sort |
Liu, Dan |
title |
Decelerating Autumn CO2 Release With Warming Induced by Attenuated Temperature Dependence of Respiration in Northern Ecosystems |
title_short |
Decelerating Autumn CO2 Release With Warming Induced by Attenuated Temperature Dependence of Respiration in Northern Ecosystems |
title_full |
Decelerating Autumn CO2 Release With Warming Induced by Attenuated Temperature Dependence of Respiration in Northern Ecosystems |
title_fullStr |
Decelerating Autumn CO2 Release With Warming Induced by Attenuated Temperature Dependence of Respiration in Northern Ecosystems |
title_full_unstemmed |
Decelerating Autumn CO2 Release With Warming Induced by Attenuated Temperature Dependence of Respiration in Northern Ecosystems |
title_sort |
decelerating autumn co2 release with warming induced by attenuated temperature dependence of respiration in northern ecosystems |
publishDate |
2018 |
url |
https://ddd.uab.cat/record/203567 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Barrow Climate change Point Barrow Alaska |
genre_facet |
Arctic Barrow Climate change Point Barrow Alaska |
op_relation |
Geophysical Research Letters Vol. 45, Issue 11 (June 2018), p. 5562-5571 https://ddd.uab.cat/record/203567 urn:10.1029/2018GL077447 urn:oai:ddd.uab.cat:203567 urn:scopus_id:85048961194 urn:wos_id:000436249900039 urn:altmetric_id:43787024 urn:oai:egreta.uab.cat:publications/252e72dd-598c-4473-9497-93f341ab4afe urn:articleid:19448007v45n11p5562 |
op_rights |
open access Tots els drets reservats. https://rightsstatements.org/vocab/InC/1.0/ |
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Geophysical Research Letters |
container_volume |
45 |
container_issue |
11 |
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5562 |
op_container_end_page |
5571 |
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1766335102767333376 |