TY - JOUR AU - Korponai, János AU - Magyari, Enikő Katalin AU - Buczkó, Krisztina AU - Iepure, S AU - Namiotko, T AU - Czakó, D AU - Kövér, Csilla AU - Braun, Mihály TI - Cladocera response to Late Glacial to Early Holocene climate change in a South Carpathian mountain lake JF - HYDROBIOLOGIA J2 - HYDROBIOLOGIA VL - 676 PY - 2011 IS - 1 SP - 223 EP - 235 PG - 13 SN - 0018-8158 DO - 10.1007/s10750-011-0881-3 UR - https://m2.mtmt.hu/api/publication/1754254 ID - 1754254 N1 - Funding Agency and Grant Number: European Commission [MERG-CT-2006-041088]; Bolyai Scholarship [BO/00518/07]; OTKA Research Funds [F026036, PD73234]; OTKA [K83999]; Sectorial Operational Program for Human Resources Development; European Social Fund [POSDRU 89/1.5/S/60189]; [TAMOP4.2.2-08/1-2008-0020]; [TAMOP 4.2.1.B-09/1/KONV-2010-0006] Funding text: This research was supported by the European Commission through a Marie Curie Reintegration Grant held by E. K. Magyari (MERG-CT-2006-041088: Combining Palaeoecology and Palaeogenetics), the Bolyai Scholarship (BO/00518/07), and OTKA Research Funds (F026036, PD73234). This is MTA-MTM Paleo Contribution No. 140. J. Korponai was granted by TAMOP4.2.2-08/1-2008-0020 and TAMOP 4.2.1.B-09/1/KONV-2010-0006. K. Buczko was granted by OTKA K83999. The research of S. Iepure was supported by the Sectorial Operational Program for Human Resources Development 2007-2013, co-financed by the European Social Fund, under the project number POSDRU 89/1.5/S/60189 with the title 'Postdoctoral Programs for Sustainable Development in a Knowledge Based Society'. LA - English DB - MTMT ER - TY - JOUR AU - Korponai, János AU - Braun, Mihály AU - Buczkó, Krisztina AU - Gyulai, István AU - Forró, László AU - Nédli, Judit AU - Papp, István TI - Transition from shallow lake to a wetland: a multi-proxy case study in Zalavári Pond, Lake Balaton, Hungary JF - HYDROBIOLOGIA J2 - HYDROBIOLOGIA VL - 641 PY - 2010 IS - 1 SP - 225 EP - 244 PG - 20 SN - 0018-8158 DO - 10.1007/s10750-009-0087-0 UR - https://m2.mtmt.hu/api/publication/1322202 ID - 1322202 N1 - Cited By :31 Export Date: 31 January 2024 CODEN: HYDRB Correspondence Address: Korponai, J.; West-Transdanubian District Water Authority, Csik F. str. 4, 8360 Keszthely, Hungary; email: korponai.janos@nyuduvizig.hu AB - Abstract Lake Balaton, the largest shallow lake in Central Europe, has no natural outlet, therefore, underwent water level changes during its 15,000–17,000 years of history. The lake is very sensitive to both climate changes and human impacts. Surroundings have been inhabited since the Stone Age; however, heavy human impact can be recognized during the past 6000 years. In this study, we established three different stages for and reconstructed water level changes of Lake Balaton by geochemical data, subfossil Cladocera and diatom remains in the sediments of the Zalavári Pond, a part of the Kis-Balaton wetland. In 9900–8600 cal. year BP, climate was dry, water level was low, and there was a wetland in this area. Although organic matter content was low in the sediment, the ratio of Fe/Mn was high. Between 5600 and 5000 cal. year BP, water level increased, Fe/Mn ratio shows that oxygen conditions of sediments was improved in agreement with the relatively low number of diatom remains and dense chydorid remains. About 5000 cal. year BP, water level of Lake Balaton decreased as indicated by high organic content with low carbonate and high Fe/Mn ratio in the sediments (oxygen depletion). At the bottom of this section, high Fe and S concentrations showed accumulation of pyrite (FeS2) that is common in wetlands with very low redox potential. Low abundance of Cladocera remains together with rich and diverse diatom flora confirm the low water level hypothesis. Our data support that the water level of Lake Balaton was higher between 8600 and 5000 cal. year BP than it is at present. LA - English DB - MTMT ER - TY - JOUR AU - Gálos, Borbála AU - Lorenz, Ph AU - Jacob, D TI - Will dry events occur more often in Hungary in the future? JF - ENVIRONMENTAL RESEARCH LETTERS J2 - ENVIRON RES LETT VL - 2 PY - 2007 IS - 3 PG - 9 SN - 1748-9326 DO - 10.1088/1748-9326/2/3/034006 UR - https://m2.mtmt.hu/api/publication/1477813 ID - 1477813 N1 - WoS:hiba:000253652900006 2020-12-12 10:25 füzet nem egyezik LA - English DB - MTMT ER - TY - JOUR AU - Ács, Éva AU - Buczkó, Krisztina AU - Lakatos, Gyula TI - Changes in the mosaic-like water surfaces of the Lake Velence as reflected by reed periphyton studies JF - STUDIA BOTANICA HUNGARICA J2 - STUD BOT HUNG VL - 25 PY - 1994 SP - 5 EP - 19 PG - 15 SN - 0301-7001 UR - https://m2.mtmt.hu/api/publication/1102195 ID - 1102195 LA - English DB - MTMT ER -