Although studies on stable-carbon isotopes in trees from temperate zones provide abundant
paleoclimatic data, tropical trees are still understudied in this context. Therefore this study examined the variability of intra- and inter-annual stable-carbon isotopic pattern in several tree species from various tropical climates. The 𝛿¹³C values of samples of 12 broadleaved trees (seven species) from various paleotropical and neotropical sites along a climatic moisture gradient were investigated. The inter-annual variability between species and sites was studied. Further the relationship between 𝛿¹³C and precipitation time series was analyzed. Results show that tropical tree species show a similar variability in carbon isotopic composition as temperate tree species. Significant correlations between annual precipitation and tree-ring 𝛿¹³C time series were negative. Successful crossdating of a tree-ring 𝛿¹³C time series highlights the potential of carbon isotope measurements for tropical tree-ring analytical studies. Tropical broadleaved trees are able to capture a carbon isotopic signal in their annual rings even under everwet conditions and show good potential for paleoclimatic research.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/622616 |
| Date | 01 1900 |
| Creators | Fichtler, Esther, Helle, Gerhard, Worbes, Martin |
| Contributors | Georg August Universität Göttingen, Department of Crop Sciences, Agronomy in the Tropics, Institute of Chemistry and Dynamics of the Geosphere, Research Centre Jülich |
| Publisher | Tree-Ring Society |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | Article, text |
| Rights | Copyright © Tree-Ring Society. All rights reserved. |
| Relation | http://www.treeringsociety.org |
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