Natural abundance of 18O of sugar biomarkers in topsoils along a climate transect over the Central Scandinavian Mountains,Norway |
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| Authors: | Michael Zech Mario Tuthorn Bruno Glaser Wulf Amelung Bernd Huwe Wolfgang Zech Ludwig Zöller Jörg Löffler |
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| Affiliation: | 1. Department of Soil Physics, University of Bayreuth, Universit?tsstra?e 30, 95440 Bayreuth, Germany;2. Chair of Geomorphology, University of Bayreuth, Universit?tsstra?e 30, 95440 Bayreuth, Germany;3. Department of Terrestrial Biogeochemistry, Martin‐Luther University Halle‐Wittenberg, Von‐Seckendorff‐Platz 3, 06120 Halle, Germany;4. Institute of Crop Science and Resource Conservation, Soil Science and Soil Ecology, University of Bonn, Nussallee 13, 53115 Bonn, Germany;5. Institute of Soil Science and Soil Geography, University of Bayreuth, Universit?tsstra?e 30, 95440 Bayreuth, Germany;6. Department of Geography, University of Bonn, Meckenheimer Allee 166, 53115 Bonn, Germany |
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| Abstract: | Precipitation and topsoil samples from a climate transect over the Scandinavian Mountains, Norway, were analyzed for bulk and compound‐specific δ18O values. The natural abundance of 18O in the plant‐derived hemicellulose biomarkers arabinose and xylose correlates positively with δ18O of bulk soil, but not with δ18O of precipitation. This suggests that other factors than δ18Oprec, such as evaporative 18O enrichment of leaf water, exert a strong influence on the natural abundance of 18O in soils. |
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| Keywords: | mountain soils biomarkers hemicelluloses sugars oxygen isotopes evaporative 18O enrichment |
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