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Future atmospheric CO2 leads to delayed autumnal senescence


Gail Taylor
Matthew J. Tallis
Kevin E. Percy
Franco Miglietta
Pooja S. Gupta
Beniamin Gioli
Carlo Calfapietra
Birgit Gielen
Giuseppe E. Scarascia-Mugnozza
Katre Kets
Stephen P. Long
David F. Karnosky



Publication type:

Scientific Journal (JRNL)

Primary Station(s):

Northern Research Station


Global Change Biology. 14: 264-275.


Growing seasons are getting longer, a phenomenon partially explained by increasing global temperatures. Recent reports suggest that a strong correlation exists between warming and advances in spring phenology but that a weaker correlation is evident between warming and autumnal events implying that other factors may be influencing the timing of autumnal phenology. Using freely rooted, field-grown Populus in two Free Air CO2 Enrichment Experiments (AspenFACE and PopFACE), we present evidence from two continents and over 2 years that increasing atmospheric CO2 acts directly to delay autumnal leaf coloration and leaf fall.


Taylor, Gail; Tallis, Matthew J.; Giardina, Christian P.; Percy, Kevin E.; Miglietta, Franco; Gupta, Pooja S.; Gioli, Beniamin; Calfapietra, Carlo; Gielen, Birgit; Kubiske, Mark E.; Scarascia-Mugnozza, Giuseppe E.; Kets, Katre; Long, Stephen P.; Karnosky, David F. 2008. Future atmospheric CO2 leads to delayed autumnal senescence. Global Change Biology. 14: 264-275.

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