A two-fold increase of carbon cycle sensitivity to tropical temperature variations
Earth system models project that the tropical land carbon sink will decrease in size in response to an increase in warming and drought during this century, probably causing a positive climate feedback(1,2). But available data(3-5) are too limited at present to test the predicted changes in the tropi...
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Online Access: | https://hdl.handle.net/20.500.11897/322084 https://doi.org/10.1038/nature12915 |
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ftpekinguniv:oai:localhost:20.500.11897/322084 2023-05-15T18:23:12+02:00 A two-fold increase of carbon cycle sensitivity to tropical temperature variations Wang, Xuhui Piao, Shilong Ciais, Philippe Friedlingstein, Pierre Myneni, Ranga B. Cox, Peter Heimann, Martin Miller, John Peng, Shushi Wang, Tao Yang, Hui Chen, Anping Piao, SL (reprint author), Peking Univ, Sinofrench Inst Earth Syst Sci, Coll Urban & Environm Sci, Beijing 100871, Peoples R China. Peking Univ, Sinofrench Inst Earth Syst Sci, Coll Urban & Environm Sci, Beijing 100871, Peoples R China. Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China. CEA CNRS UVSQ, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France. Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QF, Devon, England. Boston Univ, Dept Earth & Environm, Boston, MA 02215 USA. Max Planck Inst Biogeochem, D-07701 Jena, Germany. NOAA, Global Monitoring Div, Earth Syst Res Lab, Boulder, CO 80305 USA. Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA. Princeton Univ, Dept Ecol & Evolutionary Biol, Princeton, NJ 08544 USA. 2014 https://hdl.handle.net/20.500.11897/322084 https://doi.org/10.1038/nature12915 en eng nature NATURE.2014,506,(7487),212-+. 655900 0028-0836 http://hdl.handle.net/20.500.11897/322084 1476-4687 doi:10.1038/nature12915 24463514 WOS:000331107700036 PubMed SCI TREE MORTALITY RAIN-FORESTS CLIMATE DROUGHT DIOXIDE CO2 LAND DATASET VARIABILITY ECOSYSTEMS Journal 2014 ftpekinguniv https://doi.org/20.500.11897/322084 https://doi.org/10.1038/nature12915 2021-08-01T09:37:47Z Earth system models project that the tropical land carbon sink will decrease in size in response to an increase in warming and drought during this century, probably causing a positive climate feedback(1,2). But available data(3-5) are too limited at present to test the predicted changes in the tropical carbon balance in response to climate change. Long-term atmospheric carbon dioxide data provide a global record that integrates the interannual variability of the global carbon balance. Multiple lines of evidence(6-8) demonstrate that most of this variability originates in the terrestrial biosphere. In particular, the year-to-year variations in the atmospheric carbon dioxide growth rate (CGR) are thought to be the result of fluctuations in the carbon fluxes of tropical land areas(6,9,10). Recently, the response of CGR to tropical climate interannual variability was used to put a constraint on the sensitivity of tropical land carbon to climate change(10). Here we use the long-term CGR record from Mauna Loa and the South Pole to show that the sensitivity of CGR to tropical temperature interannual variability has increased by a factor of 1.9 +/- 0.3 in the past five decades. We find that this sensitivity was greater when tropical land regions experienced drier conditions. This suggests that the sensitivity of CGR to interannual temperature variations is regulated by moisture conditions, even though the direct correlation between CGR and tropical precipitation is weak(9). We also find that present terrestrial carbon cycle models do not capture the observed enhancement in CGR sensitivity in the past five decades. More realistic model predictions of future carbon cycle and climate feedbacks require a better understanding of the processes driving the response of tropical ecosystems to drought and warming. Multidisciplinary Sciences SCI(E) PubMed 14 ARTICLE slpiao@pku.edu.cn 7487 212-+ 506 Journal/Newspaper South pole Peking University Institutional Repository (PKU IR) South Pole Nature 506 7487 212 215 |
institution |
Open Polar |
collection |
Peking University Institutional Repository (PKU IR) |
op_collection_id |
ftpekinguniv |
language |
English |
topic |
TREE MORTALITY RAIN-FORESTS CLIMATE DROUGHT DIOXIDE CO2 LAND DATASET VARIABILITY ECOSYSTEMS |
spellingShingle |
TREE MORTALITY RAIN-FORESTS CLIMATE DROUGHT DIOXIDE CO2 LAND DATASET VARIABILITY ECOSYSTEMS Wang, Xuhui Piao, Shilong Ciais, Philippe Friedlingstein, Pierre Myneni, Ranga B. Cox, Peter Heimann, Martin Miller, John Peng, Shushi Wang, Tao Yang, Hui Chen, Anping A two-fold increase of carbon cycle sensitivity to tropical temperature variations |
topic_facet |
TREE MORTALITY RAIN-FORESTS CLIMATE DROUGHT DIOXIDE CO2 LAND DATASET VARIABILITY ECOSYSTEMS |
description |
Earth system models project that the tropical land carbon sink will decrease in size in response to an increase in warming and drought during this century, probably causing a positive climate feedback(1,2). But available data(3-5) are too limited at present to test the predicted changes in the tropical carbon balance in response to climate change. Long-term atmospheric carbon dioxide data provide a global record that integrates the interannual variability of the global carbon balance. Multiple lines of evidence(6-8) demonstrate that most of this variability originates in the terrestrial biosphere. In particular, the year-to-year variations in the atmospheric carbon dioxide growth rate (CGR) are thought to be the result of fluctuations in the carbon fluxes of tropical land areas(6,9,10). Recently, the response of CGR to tropical climate interannual variability was used to put a constraint on the sensitivity of tropical land carbon to climate change(10). Here we use the long-term CGR record from Mauna Loa and the South Pole to show that the sensitivity of CGR to tropical temperature interannual variability has increased by a factor of 1.9 +/- 0.3 in the past five decades. We find that this sensitivity was greater when tropical land regions experienced drier conditions. This suggests that the sensitivity of CGR to interannual temperature variations is regulated by moisture conditions, even though the direct correlation between CGR and tropical precipitation is weak(9). We also find that present terrestrial carbon cycle models do not capture the observed enhancement in CGR sensitivity in the past five decades. More realistic model predictions of future carbon cycle and climate feedbacks require a better understanding of the processes driving the response of tropical ecosystems to drought and warming. Multidisciplinary Sciences SCI(E) PubMed 14 ARTICLE slpiao@pku.edu.cn 7487 212-+ 506 |
author2 |
Piao, SL (reprint author), Peking Univ, Sinofrench Inst Earth Syst Sci, Coll Urban & Environm Sci, Beijing 100871, Peoples R China. Peking Univ, Sinofrench Inst Earth Syst Sci, Coll Urban & Environm Sci, Beijing 100871, Peoples R China. Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China. CEA CNRS UVSQ, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France. Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QF, Devon, England. Boston Univ, Dept Earth & Environm, Boston, MA 02215 USA. Max Planck Inst Biogeochem, D-07701 Jena, Germany. NOAA, Global Monitoring Div, Earth Syst Res Lab, Boulder, CO 80305 USA. Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA. Princeton Univ, Dept Ecol & Evolutionary Biol, Princeton, NJ 08544 USA. |
format |
Journal/Newspaper |
author |
Wang, Xuhui Piao, Shilong Ciais, Philippe Friedlingstein, Pierre Myneni, Ranga B. Cox, Peter Heimann, Martin Miller, John Peng, Shushi Wang, Tao Yang, Hui Chen, Anping |
author_facet |
Wang, Xuhui Piao, Shilong Ciais, Philippe Friedlingstein, Pierre Myneni, Ranga B. Cox, Peter Heimann, Martin Miller, John Peng, Shushi Wang, Tao Yang, Hui Chen, Anping |
author_sort |
Wang, Xuhui |
title |
A two-fold increase of carbon cycle sensitivity to tropical temperature variations |
title_short |
A two-fold increase of carbon cycle sensitivity to tropical temperature variations |
title_full |
A two-fold increase of carbon cycle sensitivity to tropical temperature variations |
title_fullStr |
A two-fold increase of carbon cycle sensitivity to tropical temperature variations |
title_full_unstemmed |
A two-fold increase of carbon cycle sensitivity to tropical temperature variations |
title_sort |
two-fold increase of carbon cycle sensitivity to tropical temperature variations |
publisher |
nature |
publishDate |
2014 |
url |
https://hdl.handle.net/20.500.11897/322084 https://doi.org/10.1038/nature12915 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
PubMed SCI |
op_relation |
NATURE.2014,506,(7487),212-+. 655900 0028-0836 http://hdl.handle.net/20.500.11897/322084 1476-4687 doi:10.1038/nature12915 24463514 WOS:000331107700036 |
op_doi |
https://doi.org/20.500.11897/322084 https://doi.org/10.1038/nature12915 |
container_title |
Nature |
container_volume |
506 |
container_issue |
7487 |
container_start_page |
212 |
op_container_end_page |
215 |
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1766202726519144448 |