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https://doi.org/10.5194/bgd-5-3945-2008
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bgd-5-3945-2008
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
02 Oct 2008
Status: this preprint was under review for the journal BG but the revision was not accepted.
CO2 radiative forcing during the Holocene Thermal Maximum revealed by stomatal frequency of Iberian oak leaves
Abstract. Here we analyse radiocarbon-dated Quercus leaf assemblages from northern Spain to obtain past atmospheric CO2 mixing ratios for the time period 9000–1100 cal BP by means of stomatal frequency analysis. Normalized, stomata based CO2 records show fluctuations of 20 ppmv during the Holocene that parallel Northern Hemisphere palaeotemperature reconstructions. The calculated radiative forcing of CO2 indicates a CO2 contribution of +0.1°C to the Holocene Thermal Maximum from 7 to 5 kyr BP, and −0.05°C to the Neoglacial cooling around 4 kyr BP. Derived northern hemispheric air-temperature anomalies forced by atmospheric CO2 variation suggest an active role of this trace gas as an amplifier of initial orbital forcing of Holocene climate.
How to cite. García-Amorena, I., Wagner-Cremer, F., Gomez Manzaneque, F., van Hoof, T. B., García Álvarez, S., and Visscher, H.: CO2 radiative forcing during the Holocene Thermal Maximum revealed by stomatal frequency of Iberian oak leaves, Biogeosciences Discuss., 5, 3945–3964, https://doi.org/10.5194/bgd-5-3945-2008, 2008.
Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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SC S1963: 'Stomata vs. Ice Cores', Dieter Luethi, 16 Oct 2008
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AC S2043: 'Stomata vs. Ice Cores', Ignacio Garcia-Amorena, 22 Oct 2008
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RC S2103: 'Referee 1 comment', Anonymous Referee #1, 29 Oct 2008
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RC S2103: 'Referee 1 comment', Anonymous Referee #1, 29 Oct 2008
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AC S2043: 'Stomata vs. Ice Cores', Ignacio Garcia-Amorena, 22 Oct 2008
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RC S2183: 'referee statement', Anonymous Referee #2, 04 Nov 2008
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AC S2515: 'Final Author Comments', Ignacio Garcia-Amorena, 22 Dec 2008
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
- Printer-friendly version
- Supplement
-
SC S1963: 'Stomata vs. Ice Cores', Dieter Luethi, 16 Oct 2008
-
AC S2043: 'Stomata vs. Ice Cores', Ignacio Garcia-Amorena, 22 Oct 2008
-
RC S2103: 'Referee 1 comment', Anonymous Referee #1, 29 Oct 2008
-
RC S2103: 'Referee 1 comment', Anonymous Referee #1, 29 Oct 2008
-
AC S2043: 'Stomata vs. Ice Cores', Ignacio Garcia-Amorena, 22 Oct 2008
-
RC S2183: 'referee statement', Anonymous Referee #2, 04 Nov 2008
-
AC S2515: 'Final Author Comments', Ignacio Garcia-Amorena, 22 Dec 2008
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Cited
6 citations as recorded by crossref.
- Stomatal density and stomatal index of fossil Buxus from coprolites of extinct Myotragus balearicus Bate (Artiodactyla, Caprinae) as evidence of increased CO2 concentration during the late Holocene L. Rivera et al. 10.1177/0959683614530445
- Reflections on the Use of Ecological Attributes and Traits in Quaternary Botany H. Birks 10.3389/fevo.2020.00166
- 8.2 ka BP paleoclimatic event and the Ebro Valley Mesolithic groups: Preliminary data from Artusia rock shelter (Unzué, Navarra, Spain) I. García-Martínez de Lagrán et al. 10.1016/j.quaint.2015.06.050
- Scrutinizing the carbon cycle and CO2 residence time in the atmosphere H. Harde 10.1016/j.gloplacha.2017.02.009
- New macrofossil evidence of Pinus nigra Arnold on the Northern Iberian Meseta during the Holocene I. García-Amorena et al. 10.1016/j.revpalbo.2010.10.010
- Spatial and temporal variability of periglaciation of the Iberian Peninsula M. Oliva et al. 10.1016/j.quascirev.2016.02.017
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I. García-Amorena
Unidad Docente de Botanica, Escuela Técnica Superior de Ingenieros de Montes, Universidad Politécnica de Madrid, Madrid, Spain
F. Wagner-Cremer
Palaeoecology, Laboratory of Palaeobotany and Palynology, Faculty of Sciences, Utrecht University, Utrecht, The Netherlands
F. Gomez Manzaneque
Unidad Docente de Botanica, Escuela Técnica Superior de Ingenieros de Montes, Universidad Politécnica de Madrid, Madrid, Spain
T. B. van Hoof
TNO Geological Survey of the Netherlands, Utrecht, The Netherlands
S. García Álvarez
Unidad Docente de Botanica, Escuela Técnica Superior de Ingenieros de Montes, Universidad Politécnica de Madrid, Madrid, Spain
H. Visscher
Palaeoecology, Laboratory of Palaeobotany and Palynology, Faculty of Sciences, Utrecht University, Utrecht, The Netherlands