were recently published from lakes located in different parts of the mountain
(Tonkov et al., 1998; Bozilova, Tonkov, 2000; Bozilova et al., 2002; Tonkov,
Marinova, in press).
The present article presents the results from pollen analysis of a sediment
core obtained from a small subalpine lake in the Central Rila Mountains
located within the territory of the National Park Rila.
THE STUDY AREA
Lake Malko Smradlivo is located at 2300 m a.s.l. in the subalpine vegetation
belt of the Central Rila Mountains, Southwestern Bulgaria (Fig. 1) above the
Fig. 1.
A
- Location of Rila Mountains (solid triangle) on the Balkan peninsula.
Scale bar = 100 km;
В -
Map of the study area in the Central Rila Mountains
and the location of Lake Malko Smradlivo (open circle). Scale bar = 200 m.
present tree-line formed by
Pinus рейсе
with an admixture of
Picea abies
and
Pinus sylvestris.
It drains its waters into Lake Smradlivo, the largest mountain
lake on the Balkans. The open water surface of the lake is ca. 2 da, the water
depth is 1-1.3 m. The shores of the lake are flat and peaty. The surrounding
slopes are gentle, only the eastern slope is steep and stony (Fig. 2), covered
with stands of
Pinus mugo
(dwarf-pine) and herb vegetation composed of
Nardus stricta, Poa alpina, Deschampsia caespitosa, Carex nigra, C. echinata,
Geum coccineum, G. montanum, Ranunculus montanus, Dianthus microlepis,
Plantago gentianoides,
etc. A more detailed desciption of the modern vegetation
of the Central Rila Mountains in the catchment basin of the Rilska Reka river,
where the study lake is located, can be found in an earlier publication ( To n k o v
et al., 2000)
8
Электронная Научная СельскоХозяйственная Библиотека