globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2017.05.007
论文题名:
How warm? How wet? Hydroclimate reconstruction of the past 7500 years in northern Carpathians, Romania
作者: Diaconu A.-C.; Tóth M.; Lamentowicz M.; Heiri O.; Kuske E.; Tanţău I.; Panait A.-M.; Braun M.; Feurdean A.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
卷: 482
起始页码: 1
结束页码: 12
语种: 英语
英文关键词: Chironomidae ; Climate dynamics ; Eastern Carpathians ; Holocene ; Ombrotrophic peat ; Quantitative reconstructions ; Testate amoebae
英文摘要: As natural and anthropogenic ecosystems are dependent on the local water availability, understanding past changes in hydroclimate represents a priority in research concerning past climate variability. Here, we used testate amoebae (TA) and chironomid analysis on a radiocarbon dated complex of small pond and peat bog sediment profiles from an ombrotrophic bog (Tăul Muced, northern Carpathians, Romania) to quantitatively determine major hydrological changes and July air temperature over the last 7500 years. Wet mire surface conditions with a pH between 2.3 and 4.5 were inferred for the periods 4500–2700 and 1300–400 cal yr BP by the occurrence of Archerella flavum, Amphitrema wrightianum and Hyalosphenia papilio. Dry phases in mire surface conditions and a pH between 2.5 and 5 were inferred for 7550–4500, 2750–1300 and 0 cal yr BP–present by the dominance of Nebela militaris, Difflugia pulex and Phryganella acropodia. The quantitative reconstruction of mean July temperature based on the chironomid communities suggests low summer temperatures for the periods 6550–5600, 4500–3150 and 1550–600 cal yr BP, while periods of slightly higher summer temperatures were observed for 5600–4500, 3150–1550 and 100 cal yr BP–present. There is a generally good agreement between drier phases of the peat surface conditions with higher July temperature, suggesting that temperature may have been a controlling factor for water table fluctuation. Our quantitative reconstructions, among the first for central eastern Europe, show a relatively good agreement with other palaeohydrological studies from central eastern Europe, but contrast with others estimates from north-west Europe. Another important aspect of our study is that it provides valuable information on changes in local hydrology and the potential effect of the mean summer temperature over these changes. © 2017 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67785
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作者单位: Babeş-Bolyai University, Department of Geology, Kogălniceanu 1, Cluj-Napoca, Romania; Balaton Limnological Institute, MTA Centre for Ecological Research, Klebelsberg Kuno 3, Tihany, Hungary; Adam Mickiewicz University, Department of Biogeography and Palaeoecology, Bogumiła Krygowskiego 10, Poznań, Poland; Institute of Plant Sciences and Oeschger Centre for Climate Change Research, University of Bern, Altenbergrain 21, Bern, Switzerland; University of Latvia, Faculty of Geography and Earth Sciences, Jelgavas 1, Riga, Latvia; Hertelendi Laboratory of Environmental Studies, Institute for Nuclear Research, Hungarian Academy of Sciences, Bem tér 18/c., Debrecen, Hungary; Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlange 25, Frankfurt am Main, Germany

Recommended Citation:
Diaconu A.-C.,Tóth M.,Lamentowicz M.,et al. How warm? How wet? Hydroclimate reconstruction of the past 7500 years in northern Carpathians, Romania[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01,482
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