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- Title
Sphagnum δ<sup>13</sup>C values as indicators of palaeohydrological changes in a peat bog.
- Authors
Loisel, Julie; Garneau, Michelle; Hélie, Jean-François
- Abstract
Late-Holocene peat stratigraphy of a Canadian boreal peat bog was examined to evaluate the potential of Sphagnum δ13C values as surface moisture proxy indicators. Isotopic measurements were compared to testate amoebae-inferred water-table depth reconstructions, plant macrofossil assemblages and past decomposition levels inferred by colorimetric humification. AMS radiocarbon dates were coupled with 210Pb dates to establish peat chronology. Although the mechanisms underlying carbon fractionation processes in peatlands are not well understood, we demonstrate that Sphagnum δ13C values have potential for palaeohydrological reconstructions, since variations presented by the isotopic values can generally be correlated with the other proxy records, especially during drier episodes.
- Subjects
CANADA; PEAT mosses; PEAT bogs; HOLOCENE paleohydrology; PEAT geology; CARBON isotopes
- Publication
Holocene, 2010, Vol 20, Issue 2, p285
- ISSN
0959-6836
- Publication type
Article
- DOI
10.1177/0959683609350389