Počet záznamů: 1

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

  1. 1.
    0347172 - BU-J 2011 RIV DE eng J - Článek v odborném periodiku
    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
    Grant CEP: GA AV ČR IAAX00130801; GA AV ČR IAAX00050801
    Výzkumný záměr: CEZ:AV0Z60050516
    Klíčová slova: annual pollen monitoring * influx * climate
    Kód oboru RIV: EF - Botanika
    Impakt faktor: 1.656, rok: 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.
    Trvalý link: http://hdl.handle.net/11104/0188007