Articles | Volume 7, issue 2
Earth Syst. Dynam., 7, 525–533, 2016
https://doi.org/10.5194/esd-7-525-2016
Earth Syst. Dynam., 7, 525–533, 2016
https://doi.org/10.5194/esd-7-525-2016

Research article 28 Jun 2016

Research article | 28 Jun 2016

Spatial and temporal variations in plant water-use efficiency inferred from tree-ring, eddy covariance and atmospheric observations

Stefan C. Dekker et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish as is (23 May 2016) by Govindasamy Bala
AR by Stefan Dekker on behalf of the Authors (02 Jun 2016)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by Editor) (06 Jun 2016) by Govindasamy Bala
AR by Stefan Dekker on behalf of the Authors (07 Jun 2016)  Author's response    Manuscript
ED: Publish as is (13 Jun 2016) by Govindasamy Bala
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Short summary
Our analysis allows us to infer maps of changing plant water-use efficiency (WUE) for 1901–2010, using atmospheric observations of temperature, humidity and CO2. Our estimated increase in global WUE is consistent with the tree-ring and eddy covariance data, but much larger than the historical WUE increases simulated by Earth System Models (ESMs). We therefore conclude that the effects of increasing CO2 on plant WUE are significantly underestimated in the latest climate projections.
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