Regime shifts of Mediterranean forest carbon uptake and reduced resilience driven by multidecadal ocean surface temperatures
The mechanisms translating global circulation changes into rapid abrupt shifts in forest carbon capture in semi‐arid biomes remain poorly understood. Here, we report unprecedented multidecadal shifts in forest carbon uptake in semi‐arid Mediterranean pine forests in Spain over 1950-2012. The average...
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ftubarcepubl:oai:diposit.ub.edu:2445/177101 2024-02-11T10:06:37+01:00 Regime shifts of Mediterranean forest carbon uptake and reduced resilience driven by multidecadal ocean surface temperatures Carnicer Cols, Jofre Domingo Marimon, Cristina Ninyerola, Miquel Camarero Martínez, Jesús Julio Bastos, Ana López Parages,Jorge Blanquer, Laura Rodríguez Fonseca, Belén Lenton, Timothy M. Dakos, Valisis Ribas, Montserrat Gutiérrez Merino, Emilia Peñuelas, Josep Pons, Xavier 2019-04-23 16 p. application/pdf http://hdl.handle.net/2445/177101 eng eng John Wiley & Sons Versió postprint del document publicat a: https://doi.org/10.1111/gcb.14664 Global Change Biology, 2019, vol. 25, p. 2825-2840 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.1111/gcb.14664 info:eu-repo/grantAgreement/EC/H2020/641762/EU//ECOPOTENTIAL info:eu-repo/grantAgreement/EC/FP7/610028/EU//IMBALANCE-P 1354-1013 http://hdl.handle.net/2445/177101 706592 (c) John Wiley & Sons, 2019 info:eu-repo/semantics/openAccess Carboni Pins Boscos Espanya Carbon Pine Forests Spain info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion 2019 ftubarcepubl https://doi.org/10.1111/gcb.14664 2024-01-24T01:15:07Z The mechanisms translating global circulation changes into rapid abrupt shifts in forest carbon capture in semi‐arid biomes remain poorly understood. Here, we report unprecedented multidecadal shifts in forest carbon uptake in semi‐arid Mediterranean pine forests in Spain over 1950-2012. The averaged carbon sink reduction varies between 31% and 37%, and reaches values in the range of 50% in the most affected forest stands. Regime shifts in forest carbon uptake are associated with climatic early warning signals, decreased forest regional synchrony and reduced long‐term carbon sink resilience. We identify the mechanisms linked to ocean multidecadal variability that shape regime shifts in carbon capture. First, we show that low‐frequency variations of the surface temperature of the Atlantic Ocean induce shifts in the non‐stationary effects of El Niño Southern Oscillation (ENSO) on regional forest carbon capture. Modelling evidence supports that the non‐stationary effects of ENSO can be propagated from tropical areas to semi‐arid Mediterranean biomes through atmospheric wave trains. Second, decadal changes in the Atlantic Multidecadal Oscillation (AMO) significantly alter sea-air heat exchanges, modifying in turn ocean vapour transport over land and land surface temperatures, and promoting sustained drought conditions in spring and summer that reduce forest carbon uptake. Third, we show that lagged effects of AMO on the winter North Atlantic Oscillation also contribute to the maintenance of long‐term droughts. Finally, we show that the reported strong, negative effects of ocean surface temperature (AMO) on forest carbon uptake in the last decades are unprecedented over the last 150 years. Our results provide new, unreported explanations for carbon uptake shifts in these drought‐prone forests and review the expected impacts of global warming on the profiled mechanisms. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Dipòsit Digital de la Universitat de Barcelona Global Change Biology 25 8 2825 2840 |
institution |
Open Polar |
collection |
Dipòsit Digital de la Universitat de Barcelona |
op_collection_id |
ftubarcepubl |
language |
English |
topic |
Carboni Pins Boscos Espanya Carbon Pine Forests Spain |
spellingShingle |
Carboni Pins Boscos Espanya Carbon Pine Forests Spain Carnicer Cols, Jofre Domingo Marimon, Cristina Ninyerola, Miquel Camarero Martínez, Jesús Julio Bastos, Ana López Parages,Jorge Blanquer, Laura Rodríguez Fonseca, Belén Lenton, Timothy M. Dakos, Valisis Ribas, Montserrat Gutiérrez Merino, Emilia Peñuelas, Josep Pons, Xavier Regime shifts of Mediterranean forest carbon uptake and reduced resilience driven by multidecadal ocean surface temperatures |
topic_facet |
Carboni Pins Boscos Espanya Carbon Pine Forests Spain |
description |
The mechanisms translating global circulation changes into rapid abrupt shifts in forest carbon capture in semi‐arid biomes remain poorly understood. Here, we report unprecedented multidecadal shifts in forest carbon uptake in semi‐arid Mediterranean pine forests in Spain over 1950-2012. The averaged carbon sink reduction varies between 31% and 37%, and reaches values in the range of 50% in the most affected forest stands. Regime shifts in forest carbon uptake are associated with climatic early warning signals, decreased forest regional synchrony and reduced long‐term carbon sink resilience. We identify the mechanisms linked to ocean multidecadal variability that shape regime shifts in carbon capture. First, we show that low‐frequency variations of the surface temperature of the Atlantic Ocean induce shifts in the non‐stationary effects of El Niño Southern Oscillation (ENSO) on regional forest carbon capture. Modelling evidence supports that the non‐stationary effects of ENSO can be propagated from tropical areas to semi‐arid Mediterranean biomes through atmospheric wave trains. Second, decadal changes in the Atlantic Multidecadal Oscillation (AMO) significantly alter sea-air heat exchanges, modifying in turn ocean vapour transport over land and land surface temperatures, and promoting sustained drought conditions in spring and summer that reduce forest carbon uptake. Third, we show that lagged effects of AMO on the winter North Atlantic Oscillation also contribute to the maintenance of long‐term droughts. Finally, we show that the reported strong, negative effects of ocean surface temperature (AMO) on forest carbon uptake in the last decades are unprecedented over the last 150 years. Our results provide new, unreported explanations for carbon uptake shifts in these drought‐prone forests and review the expected impacts of global warming on the profiled mechanisms. |
format |
Article in Journal/Newspaper |
author |
Carnicer Cols, Jofre Domingo Marimon, Cristina Ninyerola, Miquel Camarero Martínez, Jesús Julio Bastos, Ana López Parages,Jorge Blanquer, Laura Rodríguez Fonseca, Belén Lenton, Timothy M. Dakos, Valisis Ribas, Montserrat Gutiérrez Merino, Emilia Peñuelas, Josep Pons, Xavier |
author_facet |
Carnicer Cols, Jofre Domingo Marimon, Cristina Ninyerola, Miquel Camarero Martínez, Jesús Julio Bastos, Ana López Parages,Jorge Blanquer, Laura Rodríguez Fonseca, Belén Lenton, Timothy M. Dakos, Valisis Ribas, Montserrat Gutiérrez Merino, Emilia Peñuelas, Josep Pons, Xavier |
author_sort |
Carnicer Cols, Jofre |
title |
Regime shifts of Mediterranean forest carbon uptake and reduced resilience driven by multidecadal ocean surface temperatures |
title_short |
Regime shifts of Mediterranean forest carbon uptake and reduced resilience driven by multidecadal ocean surface temperatures |
title_full |
Regime shifts of Mediterranean forest carbon uptake and reduced resilience driven by multidecadal ocean surface temperatures |
title_fullStr |
Regime shifts of Mediterranean forest carbon uptake and reduced resilience driven by multidecadal ocean surface temperatures |
title_full_unstemmed |
Regime shifts of Mediterranean forest carbon uptake and reduced resilience driven by multidecadal ocean surface temperatures |
title_sort |
regime shifts of mediterranean forest carbon uptake and reduced resilience driven by multidecadal ocean surface temperatures |
publisher |
John Wiley & Sons |
publishDate |
2019 |
url |
http://hdl.handle.net/2445/177101 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
Versió postprint del document publicat a: https://doi.org/10.1111/gcb.14664 Global Change Biology, 2019, vol. 25, p. 2825-2840 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.1111/gcb.14664 info:eu-repo/grantAgreement/EC/H2020/641762/EU//ECOPOTENTIAL info:eu-repo/grantAgreement/EC/FP7/610028/EU//IMBALANCE-P 1354-1013 http://hdl.handle.net/2445/177101 706592 |
op_rights |
(c) John Wiley & Sons, 2019 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/gcb.14664 |
container_title |
Global Change Biology |
container_volume |
25 |
container_issue |
8 |
container_start_page |
2825 |
op_container_end_page |
2840 |
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1790604436490420224 |