气候变化领域集成服务门户(CCPortal): Always on the tipping point – A search for signals of past societies and related peatland ecosystem critical transitions during the last 6500 years in N Poland

CCPortal

DOI	10.1016/j.quascirev.2019.105954
	Always on the tipping point – A search for signals of past societies and related peatland ecosystem critical transitions during the last 6500 years in N Poland
	Lamentowicz M.; Kołaczek P.; Mauquoy D.; Kittel P.; Łokas E.; Słowiński M.; Jassey V.E.J.; Niedziółka K.; Kajukało-Drygalska K.; Marcisz K.
发表日期	2019
ISSN	0277-3791
卷号	225
英文摘要	We explored past critical transitions in a peatland located in N Poland using a densely dated ( × 44 14C dates and ×26 210Pb), high-resolution multi-proxy profile. A 6500-year record was supported by a very robust age-depth model. Changes in land use, climate and carbon sequestration in northern Poland were investigated using a range of biotic proxies. We determined critical transitions in the development of the mire which were dependent upon extrinsic drivers. The trophic status of the mire shifted several times during the last 6.5 millennia. The pattern of changes suggests that it was very sensitive to different changes in the peatland basin. We identified several factors which may have driven transitions between the bog and fen state as a response to catchment hydrology changes largely driven by human impact which overlapped with periods of climate change. We determined the vegetation threshold in relation to microcharcoal which could be related to fire intensity. Based upon microcharcoal and pollen analyses, the local plant community threshold for fire intensity was estimated to be ca 7500 microcharcoal particles/cm2/year. We discovered that this level was also an important tipping point for the divergence between plants positively (e.g. human indicators and Carpinus betulus) or negatively related (e.g. Quercus) related to fires. This local threshold was related to ecological changes related to the emergence and fall of subsequent human communities. The first pollen grains indicating human activities in the deposits are dated to ca. 6000 cal. BP. The strongest signal comes from the Neolithic, the Bronze Age, the Pre-Roman Period and the Roman Period. These past societies exploited natural resources and deforested the landscape while actively using fire. We inferred a distinct human influence since ca. 5000 cal. BP (the Neolithic) until the Early Middle Ages with strong evidence during the Bronze Age and Roman Period which demonstrates the high importance of the area until the transition from the tribe period to the Polish state. The peatland possibly recorded several climatic shifts, however the climate change signals were modified by human impacts which actively changed the environmental conditions. © 2019 The Authors
英文关键词	Archaeology; Climate; Critical transition; Ecosystem resilience; Fire; High resolution; Human; Multi-proxy; Palaeoecology; TITAN
语种	英语
scopus关键词	Bronze; Catchments; Ecosystems; Fires; Land use; Plants (botany); Wetlands; Archaeology; Climate; Critical transition; Ecosystem resilience; High resolution; Human; Multi proxies; Palaeoecology; TITAN; Climate change; archaeology; Bronze Age; carbon sequestration; catchment; charcoal; climate change; deciduous tree; divergence; fire history; Neolithic; paleoecology; palynology; peatland; Carpinus betulus; Quercus
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/151698
作者单位	Laboratory of Wetland Ecology and Monitoring, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, Poznań, Poland; Department of Biogeography and Palaeoecology, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, Poznań, Poland; Department of Environmental Resources and Geohazards, Institute of Geography and Spatial Organisation, Polish Academy of Sciences, Warsaw, Poland; School of Geosciences, University of Aberdeen, Aberdeen, United Kingdom; Department of Geomorphology and Palaeogeography, Faculty of Geographical Sciences, University of Lodz, Łódź, Poland; Department of Mass Spectrometry, Institute of Nuclear Physics, Polish Academy of Sciences, Kraków, Poland; Laboratoire d'Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, Toulouse, France; Institute of Archaeology, Cardinal Stefan Wyszyński University, Warsaw, Poland
推荐引用方式 GB/T 7714	Lamentowicz M.,Kołaczek P.,Mauquoy D.,等. Always on the tipping point – A search for signals of past societies and related peatland ecosystem critical transitions during the last 6500 years in N Poland[J],2019,225.
APA	Lamentowicz M..,Kołaczek P..,Mauquoy D..,Kittel P..,Łokas E..,...&Marcisz K..(2019).Always on the tipping point – A search for signals of past societies and related peatland ecosystem critical transitions during the last 6500 years in N Poland.Quaternary Science Reviews,225.
MLA	Lamentowicz M.,et al."Always on the tipping point – A search for signals of past societies and related peatland ecosystem critical transitions during the last 6500 years in N Poland".Quaternary Science Reviews 225(2019).