Biogeosciences
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Articles | Volume 14, issue 14
Articles | Volume 14, issue 14
https://doi.org/10.5194/bg-14-3431-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/bg-14-3431-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 14, issue 14
Research article
 | 
20 Jul 2017
Research article |  | 20 Jul 2017

Interaction of CO2 concentrations and water stress in semiarid plants causes diverging response in instantaneous water use efficiency and carbon isotope composition

Na Zhao, Ping Meng, Yabing He, and Xinxiao Yu

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Short summary
Few researchers have investigated post-photosynthetic 13C fractionation happening in leaves. Potted saplings were cultivated under orthogonal treatments of CO2 concentration and soil water content. The 13C fractionation from mesophyll conductance and post-carboxylation both contributed to the total 13C fractionation that was determined by δ13C of water-soluble compounds and gas-exchange measurements.
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