Abrupt vegetation and environmental change since the MIS 2: A unique paleorecord from Slovakia (Central Europe)

QUATERNARY SCIENCE REVIEWS

卷:230

Article

Solcova, Anna^1,2  Jamrichova, Eva^2,3  Horsak, Michal³  Paril, Petr³  Petr, Libor³  Heiri, Oliver⁴  Kveton, Jiri^5,6  Krizek, Marek⁷  Hartvich, Filip^7,8  Hajek, Michal³  Hajkova, Petra^2,3 

[1] Charles Univ Prague, Dept Bot, Benatska 2, Prague 12801 2, Czech Republic

[2] Czech Acad Sci, Inst Bot, Lab Paleoecol, Lidicka 25-27, Brno 60200, Czech Republic

[3] Masaryk Univ, Dept Bot & Zool, Kotlarska 2, CS-61137 Brno, Czech Republic

[4] Univ Basel, Dept Environm Sci, Klingelbergstr 17, CH-4056 Basel, Switzerland

[5] Univ South Bohemia, Dept Expt Plant Biol, Branisovska 1716, Ceske Budejovice 37005, Czech Republic

[6] Czech Acad Sci, Inst Expt Bot, Rozvojova 263, Prague 16502, Czech Republic

[7] Charles Univ Prague, Dept Phys Geog & Geoecol, Albertov 6, Prague 12843, Czech Republic

[8] Czech Acad Sci, Inst Rock Struct & Mech, Holesovickach 41, Prague 18209, Czech Republic

关键词: MIS 2/MIS 1 transition;    Lateglacial;    Holocene;    Paleolimnology;    Paleoclimatology;    Central Europe;    Travertine;    Stable isotopes;    Chironomids;    Vegetation dynamics;   

DOI  :  10.1016/j.quascirev.2020.106170

来源: Elsevier

【 摘 要 】

Research on past abrupt climate change and linked biotic response is essential for understanding of the future development of biota under changing climatic conditions, which, in turn, is necessary for adequate progress in ecosystem management and nature conservation. The present study presents the first comprehensive reconstruction of local and regional environment at the Western Carpathian/Pannonian Basin border, including a first chironomid-based paleoclimate reconstruction and delta O-18 and delta C-13 records from travertine, to investigate abrupt biota and climate shifts since the Marine Isotope Stage (MIS) 2. A range of biotic and abiotic proxy data in organic-calcareous sediment sequence were analysed using a multi-proxy approach to produce a detailed reconstruction of past ecosystem conditions. The results illustrate that the most prominent abrupt change in the local environment occurred directly at the MIS 2/MIS 1 transition at 14,560 cal BP as a consequence of increased precipitation and an increase in reconstructed mean July temperature by similar to 2.2 degrees C. Abrupt changes in local environment during the early Holocene were closely linked to travertine precipitation rate around thermal springs and thus indirectly to the climate until the arrival of the Late Neolithics around 6400 cal BP. Regional vegetation response (derived from pollen data) to the climatic fluctuations lagged, with the most prominent changes around 14,410 cal BP and 10,140 cal BP. Our data suggest the presence of a steppe-tundra ecosystem with evidence for low amounts of temperate broadleaf trees during the MIS 2, indicating close proximity to their northern glacial refugium. We demonstrate the ability of delta O-18 and delta C-13 stable isotope record from travertine to reflect abrupt climatic and environmental changes. The study provides evidence about benefits using travertine deposits coupled with high-resolution paleoecological data to investigate past biotic and abiotic responses to abrupt climate change. (C) 2020 Elsevier Ltd. All rights reserved.

【 授权许可】

Free