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The
high resolution palynological record of the annually laminated
sediments of Lake Steisslingen (SW-Germany) was subject to
correspondence analysis (CA). The results of the CA showed
that a single gradient dominated the pollen distribution.
Further investigations allowed identifying this gradient as
increasing human impact from the Neolithic to the Middle Age.
The eigenvalues of each pollensample were plotted against
time. The resulting curve proved to be a proxy for human impact.
This proxy could be tested against the archaeological record
of the region. A tool for presenting complex stratigraphical
data in a single curve was thus found.
This tool was applied to two other pollen profiles of the
region, which proved likewise to be dominated by human impact.
The next step will be to display the data spatially for different
time slices and thus show the differences in the intensity
of human impact in a certain region at a given time. This
project is planned as a contribution to LUCIFS.
Key words: Correspondence Analysis, Pollenanalysis, Human
Impact, Nolocesse, South West Germany
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