ASGP (2004), vol. 74: 285-294

INTEGRATION OF LATE GLACIAL AND HOLOCENE POLLEN DATA FROM POLAND

Adam WALANUS (1) & Dorota NALEPKA (2)

1) Institute of Archaeology, University of Rzeszów , Hoffmanowej 8, 35-016 Rzeszów , Poland ; walanus at univ.rzeszow.pl
2) W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Kraków, Poland; nalepka at ib-pan.krakow.pl

Walanus, A. & Nalepka, D., 2004. Integration of Late Glacial and Holocene pollen data from Poland . Annales Societatis Geologorum Poloniae, 74: 285-294.

Abstract: Quaternary palynological data are stored in tables which are typical computer database objects. The individual pollen table, in order to be integrated with other tables using computer-based methods, has to be attributed with (1) geographical coordinates, (2) dates attached to each row (sample) of the table, and (3) taxa names, common to all tables, attached to each column. In this paper, integration of individual lists of palynological taxa is shortly described, and some remarks are given on extracting data for selected time slices. The problem of dating of all pollen spectra, while few radiocarbon dates are available in the profile, is considered. Some mathematical models of age-depth relation are proposed, as well as incorporation of information derived from lithology of the profile. The algorithm of integration (averaging) of pollen percentages on the map of Poland is discussed. The techniques of bootstrap and so-called removed residuals are proposed as tools for assessment of reliability of isopollen lines. A possibility of construction of migration (rate of change) maps is also mentioned. The presented algorithm has been used to obtain hundreds of isopollen maps for the Holocene in the area of Poland.