| |  Online-Ressource |
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| Verfasst von: | Greule, Markus [VerfasserIn]  |
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| | Wieland, Anna [VerfasserIn] |
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| | Keppler, Frank [VerfasserIn] |
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| Titel: | Measurements and applications of δ2H values of wood lignin methoxy groups for paleoclimatic studies |
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| Verf.angabe: | Markus Greule, Anna Wieland, Frank Keppler |
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| E-Jahr: | 2021 |
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| Jahr: | 14 August 2021 |
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| Umfang: | 9 S. |
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| Teil: | volume:268 |
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| | year:2021 |
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| | month:08 |
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| | elocationid:107107 |
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| | pages:1-9 |
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| | extent:9 |
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| Fussnoten: | Im Titel ist delta als griechischer Buchstabe dargestellt ; Gesehen am 24.09.2021 |
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| Titel Quelle: | Enthalten in: Quaternary science reviews |
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| Ort Quelle: | Amsterdam [u.a.] : Elsevier, 1982 |
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| Jahr Quelle: | 2021 |
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| Band/Heft Quelle: | 268(2021) vom: Aug., Artikel-ID 107107, Seite 1-9 |
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| ISSN Quelle: | 0277-3791 |
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| Abstract: | Stable hydrogen isotope values of wood lignin methoxy groups (delta H-2(LM)) are increasingly applied to reconstruct the stable hydrogen isotope composition of precipitation (delta H-2(precip)) and mean annual temperatures (MAT) of mid latitudes regions. Recently, the analytical procedure for measuring delta H-2(LM) values was considerably improved by the availability of new reference materials that are in full accordance with the requirements of normalising stable isotope measurements. Using this improved procedure we determined the delta H-2(LM) values of tree rings from 40 geographical locations. Using these values, we present a revised relationship between delta H-2(LM) and delta H-2(precip) which is: delta H-2(precip) [mUr] = (delta H-2(LM) [mUr] thorn 206 mUr)/0.67. In addition, a new equation for reconstructions of MAT is: MAT [degrees C] = (delta H-2(LM) [mUr] thorn 272 mUr)/3.04 [mUr/degrees C]. We provide a simple numerical model that explains the observed biosynthetic isotope fraction pattern between delta H-2(LM) and delta H-2(precip). Finally, we applied the new equations to a previous data set for wood samples collected close to the Hohenpei(sic)enberg Meteorological Observatory in Germany. The data set included a 100-year-chronology (1916-2015) from nine tree ring cores removed from four beech trees. The MAT from delta H-2(LM) values reconstructed for this geographical location was 7.96 +/- 2.17 degrees C and in very good agreement with the observed mean MAT of 7.82 +/- 0.75 degrees C during this time period. Therefore, we conclude that the revised relationships between delta H-2(LM), delta H-2(precip) and MAT provide the basis for reliable application for paleoclimate reconstructions. (C) 2021 Elsevier Ltd. All rights reserved. |
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| DOI: | doi:10.1016/j.quascirev.2021.107107 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: https://doi.org/10.1016/j.quascirev.2021.107107 |
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| | Volltext: https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=DOISource&SrcApp=WOS&KeyAID=10.1016%2Fj.quasc ... |
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| | DOI: https://doi.org/10.1016/j.quascirev.2021.107107 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | Biosynthesis of lignin methoxy groups |
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| | d/h ratios |
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| | discriminations |
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| | geographical origin |
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| | hydrogen isotope ratios |
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| | Isotope fractionation between methoxy groups and precipitation |
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| | Lignin methoxy groups |
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| | Mean annual temperature |
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| | methylenetetrahydrofolate reductase |
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| | oxygen |
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| | Paleotemperature proxy |
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| | stable hydrogen |
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| | Stable hydrogen isotope analysis |
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| | Stable hydrogen isotope values of precipitation |
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| | trees |
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| | water |
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| | whole-wood |
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| K10plus-PPN: | 1771786787 |
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| Verknüpfungen: | → Zeitschrift |
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Measurements and applications of δ2H values of wood lignin methoxy groups for paleoclimatic studies / Greule, Markus [VerfasserIn]; 14 August 2021 (Online-Ressource)
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