Origin of a boreal birch bog woodland and landscape development on a warm low mountain summit at the Carpathian–Pannonian interface

0464895 - GLÚ 2017 RIV GB eng J - Journal Article
Gálová, A. - Hájková, Petra - Čierniková, M. - Petr, L. - Hájek, M. - Novák, J. - Rohovec, Jan - Jamrichová, Eva
Origin of a boreal birch bog woodland and landscape development on a warm low mountain summit at the Carpathian–Pannonian interface.
Holocene. Roč. 26, č. 7 (2016), s. 1112-1125. ISSN 0959-6836. E-ISSN 1477-0911
Institutional support: RVO:67985831 ; RVO:67985939
Keywords : charcoal * lake sediment * macrofossil * peat chemistry * phytogeography * pollen
Subject RIV: DB - Geology ; Mineralogy; EH - Ecology, Behaviour (BU-J)
Impact factor: 2.324, year: 2016

Hilly regions along the Western Carpathian–Pannonian border are phytogeographically important, but their vegetation history remains largely unknown. We analysed two peat cores of Late Glacial origin from a bog woodland in the Malé Karpaty Mts (SW Slovakia) using plant macrofossil, pollen, peat chemistry and charcoal analyses to trace local successional patterns, regional vegetation development and occurrence of rare species. The small distance between the two profiles situated within homogeneous vegetation enabled us to explore small-scale differences in local vegetation history. The sediment started to accumulate at the end of the Allerød (ca. 12950 cal. yr BP), when a shallow oligotrophic/mesotrophic lake with macrophytes developed. Open pine-birch forests dominated in the landscape. During the early Holocene, the lake was infilled, mire vegetation appeared and broad-leaved forests spread in the surroundings. Two fire events indicated by increases in number of macroscopic charcoal particles were recorded. The first one, which occurred at the end of the Late Glacial, was found only in one of the profiles, while the second one affected entire mire and probably caused a hiatus spanning the middle and late Holocene. Fagus started to spread no later than 5800 cal. yr BP. Open mire vegetation reappeared after the fire (ca. 400 cal. yr BP). During the 19th century, the mire was overgrown by a birch bog woodland. The two profiles showed basically the same successional patterns, but some local events and occurrences of rare species (Potamogeton alpinus, Potamogeton praelongus, Scorpidium scorpioides and Pleurospermum austriacum) were traced only in one of them.
Permanent Link: http://hdl.handle.net/11104/0263644