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Stable isotopes in tree rings as proxies for winter precipitation changes in the Russian Arctic over the past 150 years
Stockholm University, Faculty of Science, Department of Physical Geography and Quaternary Geology. (Klimatologi)
2008 (English)In: Geochronometria, ISSN 1897-1695, Vol. 32, 37-46 p.Article in journal (Refereed) Published
Abstract [en]

We present results from an analysis of tree ring width and stable carbon and oxygen isotopes

in tree ring cellulose of Siberian Spruce collected from remote forest islands in the northwestern

Russian tundra. Ring width is often considered a proxy for summer temperatures. The aim of this pilot

study was to test whether stable isotopes can provide additional information about climate during

the growth of trees in this extreme environment. Comparison of ä13C and ä18O with observed meteorological

data shows that there is a link between stable isotopes and winter precipitation. This may

be explained by the strong influence that snow exerts on the isotopic composition of soil moisture

during spring and early summer, when the new cellulose is formed. Our results show that winter precipitation

in the study area was increasing from 1865-1900, and thereafter decreasing until ~1930.

The 1960-1980 period was again rather humid, followed by a drying trend until 1990. The study highlights

the potential of stable carbon and oxygen isotopes in tree rings as proxies for winter precipitation.







Place, publisher, year, edition, pages
2008. Vol. 32, 37-46 p.
Keyword [en]
Tree rings, stable isotopes, Russian Arctic
National Category
Climate Research
Research subject
Physical Geography
URN: urn:nbn:se:su:diva-27739DOI: 10.2478/v10003-008-0025-6ISI: 000266438200005OAI: diva2:217598
Available from: 2009-06-30 Created: 2009-05-15 Last updated: 2009-06-30Bibliographically approved

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Holzkämper, Steffen
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