Articles | Volume 18, issue 19
Biogeosciences, 18, 5363–5380, 2021
Biogeosciences, 18, 5363–5380, 2021
Research article
04 Oct 2021
Research article | 04 Oct 2021

Validation of a coupled δ2Hn-alkaneδ18Osugar paleohygrometer approach based on a climate chamber experiment

Johannes Hepp et al.

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Cited articles

Ali, H. A. M., Mayes, R. W., Hector, B. L., Verma, A. K., and Ørskov, E. R.: The possible use of n-alkanes, long-chain fatty alcohols and long-chain fatty acids as markers in studies of the botanical composition of the diet of free-ranging herbivores, J. Agr. Sci., 143, 85–95,, 2005. 
Allison, G. B., Gat, J. R., and Leaney, F. W. J.: The relationship between deuterium and oxygen-18 delta values in leaf water, Chem. Geol., 58, 145–156, 1985. 
Altermatt, H. A. and Neish, A. C.: The biosynthesis of cell wall carbohydrates: III. Further studies on formation of cellulose and xylan from labeled monosaccharides in wheat plants, Can. J. Biochem. Phys., 34, 405–413,, 1956. 
Amelung, W., Cheshire, M. V., and Guggenberger, G.: Determination of neutral and acidic sugars in soil by capillary gas-liquid chromatography after trifluoroacetic acid hydrolysis, Soil Biol. Biochem., 28, 1631–1639, 1996. 
Barbour, M. M. and Farquhar, G. D.: Relative humidity-and ABA-induced variation in carbon and oxygen isotope ratios of cotton leaves, Plant Cell Environ., 23, 473–485, 2000. 
Short summary
Deriving more quantitative climate information like relative air humidity is one of the key challenges in paleostudies. Often only qualitative reconstructions can be done when single-biomarker-isotope data are derived from a climate archive. However, the coupling of hemicellulose-derived sugar with leaf-wax-derived n-alkane isotope results has the potential to overcome this limitation and allow a quantitative relative air humidity reconstruction.
Final-revised paper