Počet záznamů: 1

Tree-stem diameter fluctuates with the lunar tides and perhaps with geomagnetic activity

  1. 1.
    0348404 - GFU-E 2011 RIV AT eng J - Článek v odborném periodiku
    Barlow, P. W. - Mikulecký, M. - Střeštík, Jaroslav
    Tree-stem diameter fluctuates with the lunar tides and perhaps with geomagnetic activity.
    Protoplasma. Roč. 247, č. 1-2 (2010), s. 25-43 ISSN 0033-183X
    Výzkumný záměr: CEZ:AV0Z30120515
    Klíčová slova: lunisolar tidal acceleration * stem diameter variation * transpiration * Thule index
    Kód oboru RIV: DE - Zemský magnetismus, geodézie, geografie
    Impakt faktor: 1.488, rok: 2010

    Our initial objective has been to examine the suggestion of Zürcher et al. (Nature 392:665–666, 1998) that the naturally occurring variations in stem diameter of two experimental trees of Picea alba were related to nearsimultaneous variations in the lunisolar tidal acceleration. The relationship was positive: Lunar peaks were roughly synchronous with stem diameter peaks. To extend the investigation of this putative relationship, additional data on stem diameter variations from six other tree species were gathered from published literature. Sixteen sets of data were analysed retrospectively using graphical representations as well as cosinor analysis, statistical cross-correlation and cross-spectral analysis, together with estimated values of the lunisolar tidal acceleration corresponding to the sites, dates and times of collection of the biological data.
    Trvalý link: http://hdl.handle.net/11104/0188951