气候变化领域集成服务门户(CCPortal): Holocene environmental changes in northern Poland recorded in alkaline spring-fed fen deposits

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DOI	10.1016/j.quascirev.2019.05.027
	Holocene environmental changes in northern Poland recorded in alkaline spring-fed fen deposits – A multi-proxy approach
	Dobrowolski R.; Mazurek M.; Osadowski Z.; Alexandrowicz W.P.; Pidek I.A.; Pazdur A.; Piotrowska N.; Drzymulska D.; Urban D.
发表日期	2019
ISSN	0277-3791
起始页码	236
结束页码	262
卷号	219
英文摘要	Spring-fed fen deposits (peat-tufa sequences) from northern Poland were investigated for Holocene environmental reconstruction (climate and hydrology) using multi-proxy analysis (lithofacies, molluscs, pollen, plant macrofossils, geochemistry, and stable oxygen- and carbon-isotopes). The main aims of these studies were: (1) comparison of several similar sites with the same type of groundwater supply and sedimentation on a widespread space scale, (2) detailed reconstruction of their long-term development, assessing their sensitivity to climate change, (3) verification of the synchronicity of the record of different proxies in distant sites in the context of Holocene climate changes in relation to specific well-known global and/or regional climate events (so-called Bond events), and (4) discussion on permafrost degradation as a driver of spring-fed fens development. Based on our palaeogeographical data, we have distinguished an asynchronicity of the beginning of the development of spring-fed fens in the eastern and western parts of the studied region that is associated with different times of ascending groundwater supply unblocking after complete permafrost degradation. Therein, asynchronicity of permafrost degradation was brought about by multiple climatic, geological and structural conditions. Our results also indicate significant differences in the trends of succession (ecological and lithological) caused by the geographical location of the studied sites. Asynchronicity of the occurrence of wet and dry phases, as well as significant differences in their duration were noted. This depended upon the influence of oceanic (western part) or continental climates (eastern part). Warm and humid oceanic climate promoted the domination and longer duration of wet phases (especially in the Eo- and early Mesoholocene), while the harsh continental climate promoted the more frequent occurrence of dry phases, with short episodes of increased humidity. From the middle Mesoholocene, this marked regional diversification becomes less pronounced. Results also allowed for the recognition of several palaeoclimatic events on a regional scale. Four main cold episodes (Bond events 8–5): during LG/H transition (11.5 ky cal BP), Eo- (∼10.25 ky cal BP, ∼9.4 ky cal BP) and at the beginning of the Mesoholocene (∼8.2 ky cal BP) are well-documented by multiple proxies at all study sites. Other cold episodes (Bond events 4–0) are slightly less documented and are not clear for interpretation. The results of our study demonstrate the importance of spring-fed fen deposits for detailed palaeoenvironmental reconstruction on a regional scale. © 2019
英文关键词	Continental biomarkers; Europe; Holocene; Palaeoclimatology; Palaeogeography; Stable isotopes
语种	英语
scopus关键词	Deposits; Groundwater; Groundwater geochemistry; Isotopes; Lithology; Permafrost; Plants (botany); Wetlands; Europe; Holocenes; Palaeoclimatology; Palaeogeography; Stable isotopes; Climate change; climate change; fen; geographical region; groundwater; Holocene; paleoclimate; paleoenvironment; paleogeography; permafrost; proxy climate record; reconstruction; regional climate; sedimentation; stable isotope; Poland [Central Europe]; Mollusca
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151821
作者单位	Faculty of Earth Sciences and Spatial Managements, Maria Curie-Skłodowska University, Kraśnicka 2 cd, Lublin, PL-20-718, Poland; Institute of Geoecology and Geoinformation, Adam Mickiewicz University, Krygowskiego 10, Poznań, PL-61-680, Poland; Department of Botany and Genetics, Pomeranian Academy, Arciszewskiego 22B, Słupsk, PL-76-200, Poland; AGH University of Science and Technology, Faculty of Geology, Geophysics and Environment Protection, Chair of General Geology and Geotourism, Al Mickiewicza 30, Cracow, PL-30-059, Poland; Institute of Physics, Silesian University of Technology, Krzywoustego 2, Gliwice, PL-44-100, Poland; Institute of Biology, University of Bialystok, Ciołkowskiego 1J, Białystok, PL-15-245, Poland; Institute of Soil Science, Environment Engineering and Management, University of Life Sciences, Akademicka 13, Lublin, PL-20-950, Poland
推荐引用方式 GB/T 7714	Dobrowolski R.,Mazurek M.,Osadowski Z.,等. Holocene environmental changes in northern Poland recorded in alkaline spring-fed fen deposits – A multi-proxy approach[J],2019,219.
APA	Dobrowolski R..,Mazurek M..,Osadowski Z..,Alexandrowicz W.P..,Pidek I.A..,...&Urban D..(2019).Holocene environmental changes in northern Poland recorded in alkaline spring-fed fen deposits – A multi-proxy approach.Quaternary Science Reviews,219.
MLA	Dobrowolski R.,et al."Holocene environmental changes in northern Poland recorded in alkaline spring-fed fen deposits – A multi-proxy approach".Quaternary Science Reviews 219(2019).