caa a22 4500 445358831 CHVBK 20180317142909.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s00334-010-0244-4 doi (NATIONALLICENCE)springer-10.1007/s00334-010-0244-4 Palaeoecological studies at the Kaliakra area, northeastern Bulgarian Black Sea coast: 6000years of natural and anthropogenic change [Elektronische Daten] [Spassimir Tonkov, Hans-Jürgen Beug, Elissaveta Bozilova, Mariana Filipova-Marinova, Hogne Jungner] A 7.5m sediment core from Lake Bolata, a small former coastal liman lake in northeastern Bulgaria, was analyzed for pollen and plant macrofossil content in attempt to trace the changes in the vegetation, human impact and the influence of the Black Sea during the last ca. 6,000years. Lake Bolata started its existence when the rising Black Sea level reached the elevation of the bottom of the depression. By that time nearly all tree species were already present in this area with the exception of Carpinus orientalis. The comparison of the arrival time of oriental hornbeam at different sites along the Bulgarian Black Sea confirmed the reliability of the local radiocarbon chronology. For the period under study the vegetation of the region around the site can be described as a forest-steppe due to NAP values higher than 40% of the pollen sum. Forests on the slopes of the river canyon consisted of Quercus spp., Acer, Carpinus orientalis, Fraxinus ornus, Fagus and possibly Tilia. Riverine forests formed stands composed of Salix, Alnus, Ulmus, Fraxinus, Carpinus betulus and Vitis as a liana. The vegetation on the Cape Kaliakra plateau, bordering the canyon, was dominated by diverse herbs and most of these could be considered xerophytes. The oldest occupation period belongs to the Eneolithic, documented by the occurrences of Triticum-type pollen at 5570-5170cal b.p. (3620-3220 b.c.). The next period of higher continuous Cerealia-type values corresponds to 3450-1830cal b.p. (1500 b.c.-a.d. 120). The macrofossil record chiefly provides evidence about plant communities of aquatics and helophytes. Springer-Verlag, 2010 Black Sea coast nationallicence Lake Bolata nationallicence Pollen analysis nationallicence Macrofossil analysis nationallicence Vegetation history nationallicence Human impact nationallicence Tonkov Spassimir Faculty of Biology, Department of Botany, Laboratory of Palynology, Sofia University "St. Kliment Ohridski”, 8 Dragan Tzankov blvd, 1164, Sofia, Bulgaria aut Beug Hans-Jürgen Walter-Nernst-Weg 9, 37075, Göttingen, Germany aut Bozilova Elissaveta Faculty of Biology, Department of Botany, Laboratory of Palynology, Sofia University "St. Kliment Ohridski”, 8 Dragan Tzankov blvd, 1164, Sofia, Bulgaria aut Filipova-Marinova Mariana Museum of Natural History, 41 Maria Louisa blvd, 9000, Varna, Bulgaria aut Jungner Hogne Dating Laboratory, University of Helsinki, 00014, Helsinki, Finland aut Vegetation History and Archaeobotany Springer-Verlag 20/1(2011-01-01), 29-40 0939-6314 20:1<29 2011 20 334 https://doi.org/10.1007/s00334-010-0244-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00334-010-0244-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tonkov Spassimir Faculty of Biology, Department of Botany, Laboratory of Palynology, Sofia University "St. Kliment Ohridski”, 8 Dragan Tzankov blvd, 1164, Sofia, Bulgaria aut NATIONALLICENCE 700 1- Beug Hans-Jürgen Walter-Nernst-Weg 9, 37075, Göttingen, Germany aut NATIONALLICENCE 700 1- Bozilova Elissaveta Faculty of Biology, Department of Botany, Laboratory of Palynology, Sofia University "St. Kliment Ohridski”, 8 Dragan Tzankov blvd, 1164, Sofia, Bulgaria aut NATIONALLICENCE 700 1- Filipova-Marinova Mariana Museum of Natural History, 41 Maria Louisa blvd, 9000, Varna, Bulgaria aut NATIONALLICENCE 700 1- Jungner Hogne Dating Laboratory, University of Helsinki, 00014, Helsinki, Finland aut NATIONALLICENCE 773 0- Vegetation History and Archaeobotany Springer-Verlag 20/1(2011-01-01), 29-40 0939-6314 20:1<29 2011 20 334 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer