Paläoökologische Untersuchungen zu holozänen Waldgrenzschwankungen im oberen Fimbertal (Val Fenga, Silvretta, Ostschweiz)

Forestline oscillations are important palaeoecological indicators in high mountain areas. According to first results of examining the postglacial forestline's development in the upper Fimbertal, a proof of its extension to an altitude of more than 2350 m a.s.l. during the Atlanticum was given. To verify these conclusions, the findings of fossile pieces of wood in a mire at 2365 m a.s.l. can be quoted. Most of these samples belong to Pinus cembra, as the results of the wood-analysis show. The eldest piece with 197 annual rings was part of a trunk of the same species. 14C data of these samples prove them to belong to the period between 6860-6140 bp. Palynological records and an analysis of fossile stomata out of the same mire confirm these results.