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Postglacial vegetation history as recorded from the subalpine Lake Ribno (NW Rila Mts), Bulgaria
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
2013 (English)In: Central European Journal of Biology, ISSN 1895-104X, Vol. 8, no 1, 64-77 p.Article in journal (Refereed) Published
Abstract [en]

A pollen analysis conducted on a 600 cm core from Lake Ribno (2184 m) in the Northwestern Rila Mountains, supplemented by 13 radiocarbon dates, has revealed the basic stages in its postglacial vegetation dynamics. The lateglacial vegetation, composed of Artemisia, Chenopodiaceae and Poaceae, with stands of Pinus and Juniperus-Ephedra shrubland, dominated in the stadials and partly retreated during the Bolling/Allerod interstadial (14700-12900 cal. yrs. BP). The afforestation in the early Holocene (11600-7800 cal. yrs. BP) started with pioneer Betula forests, with groups of Pinus and Juniperus at mid-high altitudes, and Quercus forests with Tilia, Ulmus, Fraxinus, Corylus below the birch zone. A coniferous belt composed of Pinus sylvestris, P. peuce and Abies was shaped under the conditions of a more humid climate (7800-5800 cal. yrs. BP). The last trees that invaded the study area were Fagus after 4300 cal. yrs. BP and Picea abies after 3400 cal. yrs. BP. Evidence for destructive changes in the vegetation and indications of agricultural and stock-breeding activities (pollen of Triticum, Secale, Plantago lanceolata, Rumex, Juglans) was continuously recorded since the Late Bronze Age (3400-3200 cal. yrs. BP). The postglacial vegetation history in the Northwestern Rila Mountains demonstrated close similarities with that of the Northern Pirin Mountains.

Place, publisher, year, edition, pages
2013. Vol. 8, no 1, 64-77 p.
Keyword [en]
Pollen analysis, Radiocarbon dating, Vegetation history, Rila Mountains, Lake Ribno
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-190310DOI: 10.2478/s11535-012-0104-6ISI: 000311515700008OAI: oai:DiVA.org:uu-190310DiVA: diva2:585960
Available from: 2013-01-10 Created: 2013-01-07 Last updated: 2013-01-10Bibliographically approved

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Possnert, Göran
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