Annual pollen traps reveal the complexity of climatic control on pollen productivity in Europe and the Caucasus

0347172 - BÚ 2011 RIV DE eng J - Journal Article
van der Knaap, W. O. - van Leeuwen, J. F. N. - Svitavská-Svobodová, Helena - Pidek, I. A. - Kavavadze, E. - Chichinadze, M. - Giesecke, T. - Kaszewski, B. M. - Oberli, F. - Kalnina, L. - Pardoe, H. S. - Tinner, W. - Ammann, B.
Annual pollen traps reveal the complexity of climatic control on pollen productivity in Europe and the Caucasus.
Vegetation History and Archaeobotany. Roč. 19, č. 4 (2010), s. 285-307. ISSN 0939-6314. E-ISSN 1617-6278
R&D Projects: GA AV ČR IAAX00130801; GA AV ČR IAAX00050801
Institutional research plan: CEZ:AV0Z60050516
Keywords : annual pollen monitoring * influx * climate
Subject RIV: EF - Botanics
Impact factor: 1.656, year: 2010

Annual PAR (pollen accumulation rates; grains cm-2 year-1) were studied with modified Tauber traps situated in ten regions, in Poland (Roztocze), the Czech Republic (two regions in Krkonoše, two in Šumava), Switzerland (4 regions in the Alps), and Georgia (Lagodekhi). The time-series are 10–16 years long, all ending in 2007. We calculated correlations between pollen data and climate. Summer warmth was found to enhance the following year’s PAR of Picea, Pinus non-cembra, Larix and Fagus. Cool summers, in contrast, increase the PAR of Abies, Alnus viridis and Gramineae in the following year, while wet summers promote PAR of Quercus and Gramineae. Wetness and warmth in general were found to enhance PAR of Salix. Care is advised when extrapolating our results to PAR in pollen sequences., because there are large errors associated with PAR from sediments, due to the effects of taphonomy and sedimentation and high uncertainty in dating.
Permanent Link: http://hdl.handle.net/11104/0188007