Forest response to elevated CO2 is conserved across a broad range of productivity.
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Proc Natl Acad Sci U S A. 2005 Dec 13;102(50):18052-6. doi: 10.1073/pnas.0509478102. Epub 2005 Dec 5.
Proc Natl Acad Sci U S A. 2005.
PMID: 16330779
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