Studies on the Holocene history of vegetation in the region of lake Srebarna (northeast Bulgaria) |
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Authors: | Maria Lazarova Elissaveta Bozilova |
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Affiliation: | (1) Institute of Botany, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 23, Sofia 1113, Bulgaria, BG;(2) Department of Botany, Faculty of Biology, University of Sofia, 15 Tsar Osvoboditel bd., Sofia 1000, Bulgaria. email: bozilova@biofac.uni-sofia.bg, BG |
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Abstract: | The results of pollen analysis of two sediment cores from lake Srebarna (northeast Bulgaria) are presented. On the basis of the palynological data and the radiocarbon dates a reconstruction of the past flora and vegetation is made. For the first time a continuous palaeosuccession is established for the area of the Danubian Dobrudza and the Ludogorie district of northeast Bulgaria: a dominance of mixed xero- and mesophilous oak woods with Carpinus betulus, Ulmus, Tilia, Corylus during the Atlantic period; mixed oak woods with increasing importance of Tilia, Ulmus, Acer and a considerable presence of Carpinus betulus and Fagus during the Sub-boreal period; degradation of the woodland vegetation and transition to secondary plant communities with Carpinus orientalis and herbs during the Sub-atlantic period. Received January 5, 2001 / Accepted March 13, 2001 |
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Keywords: | : Holocene – Pollen analysis – Vegetation history – Lake Srebarna – Northeast Bulgaria |
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