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Fig. 2. Photograph of Lake Malko Smradlivo (S. Tonkov)
MATERIALS AND METHODS
The material for pollen analysis was obtained from the southern peaty
shore. The equipment used was
Dachnowski
hand-operated corer. The core
length was 140 cm. The material consists of lake mud overlain in the uppermost
30 cm by undecomposed
Sphagnum
peat.
The core was sampled at 10 cm intervals, and a volume of 2 cm3for each
sample was treated following the standard procedure ( Fa e g r i , I v e r s e n ,
1989). The sample at level 20 cm appeared palynologically sterile. The pollen
sum (PS) used for percentage calculations is based on total terrestrial pollen
(
AP+NAP
). Excluded from the PS are spores of mosses and pteridophytes,
pollen of aquatics and Cyperaceae. Their representation is expressed as percentages
of the PS as defined above. Taxa with frequency below 0.5% are not shown
in the pollen diagram (Fig. 3). The identification of spores and pollen was
made using the reference collection of the Laboratory of Palynology and
several pollen keys (Beug, 1961; F a e g r i , I v e r s e n , 1989; Mo o r e et al.,
1991). For calculations and drawing of the pollen diagram the programmes
TILIA and TILIA*GRAPH were used (Gr imm, 1991). The pollen diagram
is divided into two Local Pollen Assemblage Zones (LPAZ). Biostratigraphically
the zones are compared with the corresponding intervals of the radiocarbon
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