Comment on "Unexpected reversal of C<sub>3</sub> versus C<sub>4</sub> grass response to elevated CO<sub>2</sub> during a 20-year field experiment".
editorial · Level V
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- Record sourced from PubMed, PMID 30166457.
- Also identified by DOI 10.1126/science.aau3016.
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Abstract
Reich <i>et al</i> (Reports, 20 April 2018, p. 317) reported that elevated carbon dioxide (eCO<sub>2</sub>) switched its effect from promoting C<sub>3</sub> grasses to favoring C<sub>4</sub> grasses in a long-term experiment. We argue that the authors did not appropriately elucidate the interannual climate variation as a potential mechanism for the reversal of C<sub>4</sub>-C<sub>3</sub> biomass in response to eCO<sub>2</sub>.
Medical subject headings
- Carbon Dioxide
- Poaceae