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Future atmospheric CO2 leads to delayed autumnal senescence

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

In: Global Change Biology, Vol. 14, No. 2, 02.2008, p. 264-275.

Research output: Contribution to journalArticle

Harvard

Taylor, G, Tallis, MJ, Giardina, CP, Percy, KE, Miglietta, F, Gupta, PS, Gioli, B, Calfapietra, C, Gielen, B, Kubiske, ME, Scarascia-Mugnozza, GE, Kets, K, Long, SP & Karnosky, DF 2008, 'Future atmospheric CO2 leads to delayed autumnal senescence', Global Change Biology, vol. 14, no. 2, pp. 264-275. https://doi.org/10.1111/j.1365-2486.2007.01473.x

APA

Taylor, G., Tallis, M. J., Giardina, C. P., Percy, K. E., Miglietta, F., Gupta, P. S., Gioli, B., Calfapietra, C., Gielen, B., Kubiske, M. E., Scarascia-Mugnozza, G. E., Kets, K., Long, S. P., & Karnosky, D. F. (2008). Future atmospheric CO2 leads to delayed autumnal senescence. Global Change Biology, 14(2), 264-275. https://doi.org/10.1111/j.1365-2486.2007.01473.x

Vancouver

Taylor G, Tallis MJ, Giardina CP, Percy KE, Miglietta F, Gupta PS et al. Future atmospheric CO2 leads to delayed autumnal senescence. Global Change Biology. 2008 Feb;14(2):264-275. https://doi.org/10.1111/j.1365-2486.2007.01473.x

Author

Taylor, Gail ; Tallis, Matthew J. ; Giardina, Christian P. ; Percy, Kevin E. ; Miglietta, Franco ; Gupta, Pooja S. ; Gioli, Beniamino ; Calfapietra, Carlo ; Gielen, Birgit ; Kubiske, Mark E. ; Scarascia-Mugnozza, Giuseppe E. ; Kets, Katre ; Long, Stephen P. ; Karnosky, David F. / Future atmospheric CO2 leads to delayed autumnal senescence. In: Global Change Biology. 2008 ; Vol. 14, No. 2. pp. 264-275.

Bibtex

@article{3bc83e6294374f2f99f86df4c293552d,
title = "Future atmospheric CO2 leads to delayed autumnal senescence",
abstract = "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. In an atmosphere enriched in CO2 (by ∼45% of the current atmospheric concentration to 550 ppm) the end of season decline in canopy normalized difference vegetation index (NDVI) – a commonly used global index for vegetation greenness – was significantly delayed, indicating a greener autumnal canopy, relative to that in ambient CO2. This was supported by a significant delay in the decline of autumnal canopy leaf area index in elevated as compared with ambient CO2, and a significantly smaller decline in end of season leaf chlorophyll content. Leaf level photosynthetic activity and carbon uptake in elevated CO2 during the senescence period was also enhanced compared with ambient CO2. The findings reveal a direct effect of rising atmospheric CO2, independent of temperature in delaying autumnal senescence for Populus, an important deciduous forest tree with implications for forest productivity and adaptation to a future high CO2 world.",
keywords = "autumnal phenology, elevated CO2, FACE, LAI, Populus, senescence",
author = "Gail Taylor and Tallis, {Matthew J.} and Giardina, {Christian P.} and Percy, {Kevin E.} and Franco Miglietta and Gupta, {Pooja S.} and Beniamino Gioli and Carlo Calfapietra and Birgit Gielen and Kubiske, {Mark E.} and Scarascia-Mugnozza, {Giuseppe E.} and Katre Kets and Long, {Stephen P.} and Karnosky, {David F.}",
year = "2008",
month = feb,
doi = "10.1111/j.1365-2486.2007.01473.x",
language = "English",
volume = "14",
pages = "264--275",
journal = "Global Change Biology",
issn = "1354-1013",
publisher = "Wiley-Blackwell",
number = "2",

}

RIS

TY - JOUR

T1 - Future atmospheric CO2 leads to delayed autumnal senescence

AU - Taylor, Gail

AU - Tallis, Matthew J.

AU - Giardina, Christian P.

AU - Percy, Kevin E.

AU - Miglietta, Franco

AU - Gupta, Pooja S.

AU - Gioli, Beniamino

AU - Calfapietra, Carlo

AU - Gielen, Birgit

AU - Kubiske, Mark E.

AU - Scarascia-Mugnozza, Giuseppe E.

AU - Kets, Katre

AU - Long, Stephen P.

AU - Karnosky, David F.

PY - 2008/2

Y1 - 2008/2

N2 - 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. In an atmosphere enriched in CO2 (by ∼45% of the current atmospheric concentration to 550 ppm) the end of season decline in canopy normalized difference vegetation index (NDVI) – a commonly used global index for vegetation greenness – was significantly delayed, indicating a greener autumnal canopy, relative to that in ambient CO2. This was supported by a significant delay in the decline of autumnal canopy leaf area index in elevated as compared with ambient CO2, and a significantly smaller decline in end of season leaf chlorophyll content. Leaf level photosynthetic activity and carbon uptake in elevated CO2 during the senescence period was also enhanced compared with ambient CO2. The findings reveal a direct effect of rising atmospheric CO2, independent of temperature in delaying autumnal senescence for Populus, an important deciduous forest tree with implications for forest productivity and adaptation to a future high CO2 world.

AB - 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. In an atmosphere enriched in CO2 (by ∼45% of the current atmospheric concentration to 550 ppm) the end of season decline in canopy normalized difference vegetation index (NDVI) – a commonly used global index for vegetation greenness – was significantly delayed, indicating a greener autumnal canopy, relative to that in ambient CO2. This was supported by a significant delay in the decline of autumnal canopy leaf area index in elevated as compared with ambient CO2, and a significantly smaller decline in end of season leaf chlorophyll content. Leaf level photosynthetic activity and carbon uptake in elevated CO2 during the senescence period was also enhanced compared with ambient CO2. The findings reveal a direct effect of rising atmospheric CO2, independent of temperature in delaying autumnal senescence for Populus, an important deciduous forest tree with implications for forest productivity and adaptation to a future high CO2 world.

KW - autumnal phenology

KW - elevated CO2

KW - FACE

KW - LAI

KW - Populus

KW - senescence

U2 - 10.1111/j.1365-2486.2007.01473.x

DO - 10.1111/j.1365-2486.2007.01473.x

M3 - Article

VL - 14

SP - 264

EP - 275

JO - Global Change Biology

JF - Global Change Biology

SN - 1354-1013

IS - 2

ER -

ID: 2112853