globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2012.12.011
论文题名:
Palaeohydrology, fires and vegetation succession in the southern Baltic during the last 7500years reconstructed from a raised bog based on multi-proxy data
作者: Gałka M.; Miotk-Szpiganowicz G.; Goslar T.; Jeśko M.; van der Knaap W.O.; Lamentowicz M.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 370
起始页码: 209
结束页码: 221
语种: 英语
英文关键词: Baltic ; Charcoal ; Holocene ; Ombrotrophic peatland ; Palaeohydrology ; Plant macrofossils ; Poland ; Pollen ; Testate amoebae
英文摘要: We present the first 7500. yr long multi-proxy record from a raised bog located at the southern Baltic coast, Poland. Testate amoebae, plant macrofossils, pollen and microscopic charcoal were used to reconstruct environmental changes in Pomerania (northern Poland, Kaszuby Lakeland) from a 7-m thick peat archive of Stażki bog dated 5500 BC-AD 1250. We obtained a record of proxies representing different spatial scales: regional vegetation changed simultaneously with local vegetation, and testate amoebae showed a pattern of change similar to that of pollen and plant macrofossils. On the basis of the combined proxies, we distinguished three hydroclimatic stages: moist conditions 5500-3450 BC, drier conditions with regionally increased fires up to 600 BC, and again moist conditions from 600 BC onward. During the drier interval, a first climatic shift to wetter conditions at 1700 BC is indicated by regional pollen as the replacement of Corylus by Carpinus, and locally by, e.g., the increase of Hyalosphenia elegans and mire plants such as Sphagnum sec. Cuspidata. Furthermore, we observed a correlation since 600 BC among the re-expansion of Carpinus (after a sudden decline ca. 950 BC), increased peat accumulation, increase of Hyalosphenia species, and fewer fires, suggesting lower evapotranspiration and a stable high water table in the bog. Fagus started to expand after AD 810 gradually replacing Carpinus, which was possibly due to a gradually more oceanic climate, though we cannot exclude human impact on the forests. Peat accumulation, determined by radiocarbon dating, varied with bog surface wetness. The hydroclimatic phases found in Stażki peatland are similar to moisture changes recorded in other sites from Poland and Europe. This is the first detailed record of hydroclimatic change during the Holocene in the southern Baltic region, so it forms a reference site for further studies on other southern Baltic bogs that are in progress. © 2012 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/69870
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作者单位: Department of Biogeography and Palaeoecology, Adam Mickiewicz University (Faculty of Geographical and Geological Sciences), Dziegielowa 27, 61-680 Poznań, Poland; Polish Geological Institute, Branch of Marine Geology, ul. Kościerska 5, 80-328 Gdańsk, Poland; Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland; Institute of Plant Sciences and Oeschger Centre for Climate Change Research, University of Bern, Altenbergrain 21, CH-3013 Bern, Switzerland; Poznań Radiocarbon Laboratory, Foundation of the Adam Mickiewicz University, Rubiez 46, 61-612 Poznań, Poland

Recommended Citation:
Gałka M.,Miotk-Szpiganowicz G.,Goslar T.,et al. Palaeohydrology, fires and vegetation succession in the southern Baltic during the last 7500years reconstructed from a raised bog based on multi-proxy data[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,370
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