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Read Full Article (file size: 148134 bytes) Cited by
GEOPHYSICAL RESEARCH LETTERS,
VOL. 30, NO. 19,
1983,
doi:10.1029/2003GL017775,
2003
On the relationship between stomatal characters and atmospheric CO2
Chantal D. Reid
Department of Biology, Duke University, Durham, NC, USA
Hafiz Maherali
Department of Biology, Duke University, Durham, NC, USA
Hyrum B. Johnson
USDA-ARS, Temple, TX, USA
Stanley D. Smith
Department of Biological Sciences, University of Nevada, Las Vegas, NV, USA
Stan D. Wullschleger
Oak Ridge National Laboratory, Oak Ridge, TN, USA
Robert B. Jackson
Department of Biology, Duke University, Durham, NC, USA Nicholas School of the Environment and Earth Sciences, Duke University, Durham, NC, USA
Abstract
Leaf stomatal characters influence the response of terrestrial evapotranspiration to climate change and are used as proxies
for the reconstruction of past atmospheric [CO2]. We examined the phenotypic response of stomatal index (SI), density (SD) and aperture (AP) to rising atmospheric CO2 in 15 species after four years exposure to a field CO2 gradient (200 to 550 μmol mol−1 atmospheric [CO2]) or at three Free Air CO2 Enrichment (FACE) sites. Along the CO2 gradient, SI and SD showed no evidence of a decline to increasing [CO2], while AP decreased slightly. There was no significant change in SI, SD or AP with CO2 across FACE experiments. Without evolutionary changes, SI and SD may not respond to atmospheric [CO2] in the field and are unlikely to decrease in a future high CO2 world.
Received 19
May
2003;
accepted 5
August
2003;
published 4
October
2003.
Index Terms: 0315 Atmospheric Composition and Structure: Biosphere/atmosphere interactions; 1615 Global Change: Biogeochemical processes (4805); 1851 Hydrology: Plant ecology; 3344 Meteorology and Atmospheric Dynamics: Paleoclimatology.
Read Full Article (file size: 148134 bytes) Cited by
Citation: Reid, C. D., H. Maherali, H. B. Johnson, S. D. Smith, S. D. Wullschleger, and R. B. Jackson
(2003),
On the relationship between stomatal characters and atmospheric CO2,
Geophys. Res. Lett.,
30(19),
1983,
doi:10.1029/2003GL017775.
Copyright 2003 by the American Geophysical Union.
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