Comment on “Increased growing-season productivity drives earlier autumn leaf senescence in temperate trees”
- 5 March 2021
- journal article
- editorial
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 371 (6533)
- https://doi.org/10.1126/science.abg1438
Abstract
Zani et al . (Research Articles, 27 November 2020, p. 1066) propose that enhancement of deciduous tree photosynthesis in a CO 2 -enriched atmosphere will advance autumn leaf senescence. This premise is not supported by consistent observations from free-air CO 2 enrichment (FACE) experiments. In most FACE experiments, leaf senescence or abscission was not altered or was delayed in trees exposed to elevated CO 2 .Funding Information
- U.S. Department of Energy
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