Hi Christine,
This whole issue of environmental control on plant d13C is intriguing. It
all depends on who you talk to! People have argued for precipitation,
temperature, atmospheric moisture content etc. Indeed, it is hard to
envisage a strightforward calibration of plant d13C to precipitation on the
Quaternary timescale, as presumably any relationship will be directly
controlled by the soil water budget, which is likely to have changed
considerably during such extremes in climate. I personally have found in
modern plant vs climate relationships, that atmospheric moisture content is
the dominant control, though I'm sure others would argue differently. It
may well be that different relationships exist for different species in
different enviornments. Part of the problem for palaeo people has been the
selection of plant material. Many studies have mixed up different species
and/or organs, biasing any environmental signal (whatever that may be).
I've copied a selection of papers that cover some of these issues. Hope
they're of some use. The best place to start would be to look at the
following paper which sets the groundwork on what controls d13C in C3
plants:
FARQUHAR, G.D., EHLERINGER, J.R. and HUBICK, K.T. 1989. Carbon isotope
discrimination and photosynthesis. Annual Review of Plant Physiology and
Plant Molecular Biology, 40, 503-537.
Also:
ANDERSON, J.E., WILLIAMS, J., KRIEDEMANN, P.E., AUSTIN, M.P. and FARQUHAR,
G.D. 1996. Correlations between carbon isotope discrimination and climate of
native habitats for diverse Eucalypt taxa growing in a common garden.
Australian Journal of Plant Physiology, 23, 311-320.
APHALO, P.J. and JARVIS, P.G. 1993. An analysis of Ball's empirical model of
stomatal conductance. Annals of Botany, 72, 321-327.
Becker, B., Kromer, B. and Trimborn, P. 1991. A stable-isotope tree-ring
timescale of the Late Glacial/Holocene boundary. Nature, 353, 647-649.
BEERLING, D.J. 1996. 13C discrimination by fossil leaves during the
late-glacial climate oscillation 12-10 ka BP: measurements and physiological
controls. Oecologia, 108, 29-37.
BEERLING, D.J. and WOODWARD, F.I. 1995. Leaf stable carbon isotope
composition records increased water-use efficiency of C3 plants in response
to atmospheric CO2 enrichment. Functional Ecology, 9, 394-401.
BENNER, R., FOGEL, M.L., SPRAGUE, E.K. and HODSON, R.E. 1987. Depletion of
13C in lignin and its implications for stable carbon isotope studies.
Nature, 329, 708-710.
DEINES, P. 1980. The isotopic composition of reduced organic carbon. IN:
Fritz, P. and Fontes, J.Ch. (eds), Handbook of environmental isotope
geochemistry 1A. Elsevier, Amsterdam, 329-406.
DUPOUEY, J.-L., LEAVITT, S., CHOISNEL, E. and JOURDAIN, S. 1993. Modelling
carbon isotope fractionation in tree rings based on effective
evapotranspiration and soil water status. Plant, Cell and Environment, 16,
939-947.
LEAVITT, S.W. and DANZER, S.R. 1992. d13C variations in C3 plants over the
past 50,000 years. Radiocarbon, 34, 783-791.
POLLEY, H.W., JOHNSON, H.B., MARINO, B.D. and MAYEUX, H.S. 1993. Increase in
C3 plant water-use efficiency and biomass over glacial to present CO2
concentrations. Nature, 361, 61-64.
SPIKER, E.C. and HATCHER, P.G. 1987. The effects of early diagenesis on the
chemical and stable carbon isotopic composition of wood. Geochimica et
Cosmochimica Acta, 51, 1385-1391.
TURNEY, C.S.M., BEERLING, D.J., HARKNESS, D.D. , LOWE, J.J. and SCOTT E.M.
1997. Stable carbon isotope variations in northwest Europe during the last
glacial-interglacial transition. Journal of Quaternary Science, 12,
339-344.
VERNET, J.-L., PACHIAUDI, C., BAZILE, F., DURAND, A., FABRE, L., HEINZ, C.,
SOLARI, M.-E. and THIÉBAULT, S. 1996. Le d13C de charbons de bois
préhistoriques et historiques méditerranéens, de 35 000 BP á l'acteul.
Premiers résultats. Surface Geosciences (Paleoenvironment/Prehistory), 323,
319-324.
ZHANG, H. and NOBEL, P.S. 1996. Dependency of ci/ca and leaf transpiration
efficiency on the vapour pressure deficit. Australian Journal of Plant
Physiology, 23, 561-568.
The modern calibration I have attempted is given below and should be out
soon.
Chris S.M. Turney, James Barringer, John E. Hunt and Matt S. McGlone (in
press) Estimating past leaf-to-air/vapour pressure deficit from terrestrial
plant d13C. Journal of Quaternary Science
Hope these are of some use.
Chris
******************************************************
Dr. Chris Turney
Centre for Quaternary Research
Geography Department
Royal Holloway
University of London
Egham
Surrey
TW20 0EX
U.K.
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Tel.: +44 (0)1784 443655
Fax.: +44 (0)1784 472836
******************************************************
> ----------
> From: Christine Hatté
> Reply To: Stable Isotope Geochemistry
> Sent: Friday, July 30, 1999 9:01
> To: [log in to unmask]
> Subject: plant d13C and precipitation
>
> Hello all
> I'm looking for articles on plant d13C and precipitation. Is there a
> relationship linking directly these 2 parameters (independently of CO2 and
> temperature)? and established for different kind of soils?
> Thanks
> christine
>
>
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> Christine Hatté
> Laboratoire des Sciences du Climat et de l'Environnement
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