Elevated CO2 increases tree-level intrinsic water use efficiency: insights from carbon and oxygen isotope analyses in tree rings across three forest FACE sites

Battipaglia G, Saurer M, Cherubini P, Calfapietra C, McCarthy HR, Norby RJ & Cotrufo MF
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Battipaglia, G., Saurer, M., Cherubini, P., Calfapietra, C., McCarthy, H. R., Norby, R. J., & Cotrufo, M. F. (2013). Elevated CO2 increases tree-level intrinsic water use efficiency: insights from carbon and oxygen isotope analyses in tree rings across three forest FACE sites. New Phytologist, 197(2), 544-554. https://doi.org/10.1111/nph.12044