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The dominant role of semi-arid ecosystems in the trend and variability of the land CO2 sink.

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Title: The dominant role of semi-arid ecosystems in the trend and variability of the land CO2 sink.
Authors: Ahlström, Anders, Raupach, Michael R., Schurgers, Guy, Smith, Benjamin, Arneth, Almut, Jung, Martin, Reichstein, Markus, Canadell, Josep G., Friedlingstein, Pierre, Jain, Atul K., Kato, Etsushi, Poulter, Benjamin, Sitch, Stephen, Stocker, Benjamin D., Viovy, Nicolas, Ying Ping Wang, Wiltshire, Andy, Zaehle, Sönke, Ning Zeng
Source: Science (pre-March 2025). 5/22/2015, Vol. 348 Issue 6237, p895-899. 5p.
Subjects: Arid regions ecology, Carbon dioxide sinks, Atmospheric carbon dioxide, Meteorological precipitation, Earth temperature, Ecosystem services, Vegetation & climate
Abstract: The growth rate of atmospheric carbon dioxide (CO2) concentrations since industrialization is characterized by large interannual variability, mostly resulting from variability in CO2 uptake by terrestrial ecosystems (typically termed carbon sink). However, the contributions of regional ecosystems to that variability are not well known. Using an ensemble of ecosystem and land-surface models and an empirical observation-based product of global gross primary production, we show that the mean sink, trend, and interannual variability in CO2 uptake by terrestrial ecosystems are dominated by distinct biogeographic regions. Whereas the mean sink is dominated by highly productive lands (mainly tropical forests), the trend and interannual variability of the sink are dominated by semi-arid ecosystems whose carbon balance is strongly associated with circulation-driven variations in both precipitation and temperature. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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PubType: Academic Journal
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  Data: The dominant role of semi-arid ecosystems in the trend and variability of the land CO<subscript>2</subscript> sink.
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  Data: <searchLink fieldCode="AR" term="%22Ahlström%2C+Anders%22">Ahlström, Anders</searchLink><br /><searchLink fieldCode="AR" term="%22Raupach%2C+Michael+R%2E%22">Raupach, Michael R.</searchLink><br /><searchLink fieldCode="AR" term="%22Schurgers%2C+Guy%22">Schurgers, Guy</searchLink><br /><searchLink fieldCode="AR" term="%22Smith%2C+Benjamin%22">Smith, Benjamin</searchLink><br /><searchLink fieldCode="AR" term="%22Arneth%2C+Almut%22">Arneth, Almut</searchLink><br /><searchLink fieldCode="AR" term="%22Jung%2C+Martin%22">Jung, Martin</searchLink><br /><searchLink fieldCode="AR" term="%22Reichstein%2C+Markus%22">Reichstein, Markus</searchLink><br /><searchLink fieldCode="AR" term="%22Canadell%2C+Josep+G%2E%22">Canadell, Josep G.</searchLink><br /><searchLink fieldCode="AR" term="%22Friedlingstein%2C+Pierre%22">Friedlingstein, Pierre</searchLink><br /><searchLink fieldCode="AR" term="%22Jain%2C+Atul+K%2E%22">Jain, Atul K.</searchLink><br /><searchLink fieldCode="AR" term="%22Kato%2C+Etsushi%22">Kato, Etsushi</searchLink><br /><searchLink fieldCode="AR" term="%22Poulter%2C+Benjamin%22">Poulter, Benjamin</searchLink><br /><searchLink fieldCode="AR" term="%22Sitch%2C+Stephen%22">Sitch, Stephen</searchLink><br /><searchLink fieldCode="AR" term="%22Stocker%2C+Benjamin+D%2E%22">Stocker, Benjamin D.</searchLink><br /><searchLink fieldCode="AR" term="%22Viovy%2C+Nicolas%22">Viovy, Nicolas</searchLink><br /><searchLink fieldCode="AR" term="%22Ying+Ping+Wang%22">Ying Ping Wang</searchLink><br /><searchLink fieldCode="AR" term="%22Wiltshire%2C+Andy%22">Wiltshire, Andy</searchLink><br /><searchLink fieldCode="AR" term="%22Zaehle%2C+Sönke%22">Zaehle, Sönke</searchLink><br /><searchLink fieldCode="AR" term="%22Ning+Zeng%22">Ning Zeng</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 5/22/2015, Vol. 348 Issue 6237, p895-899. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Arid+regions+ecology%22">Arid regions ecology</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+dioxide+sinks%22">Carbon dioxide sinks</searchLink><br /><searchLink fieldCode="DE" term="%22Atmospheric+carbon+dioxide%22">Atmospheric carbon dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Meteorological+precipitation%22">Meteorological precipitation</searchLink><br /><searchLink fieldCode="DE" term="%22Earth+temperature%22">Earth temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Ecosystem+services%22">Ecosystem services</searchLink><br /><searchLink fieldCode="DE" term="%22Vegetation+%26+climate%22">Vegetation & climate</searchLink>
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  Data: The growth rate of atmospheric carbon dioxide (CO2) concentrations since industrialization is characterized by large interannual variability, mostly resulting from variability in CO2 uptake by terrestrial ecosystems (typically termed carbon sink). However, the contributions of regional ecosystems to that variability are not well known. Using an ensemble of ecosystem and land-surface models and an empirical observation-based product of global gross primary production, we show that the mean sink, trend, and interannual variability in CO2 uptake by terrestrial ecosystems are dominated by distinct biogeographic regions. Whereas the mean sink is dominated by highly productive lands (mainly tropical forests), the trend and interannual variability of the sink are dominated by semi-arid ecosystems whose carbon balance is strongly associated with circulation-driven variations in both precipitation and temperature. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=102820243
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