Searching for the 4.2 ka climate event at Lake Spore, Poland

Pleskot, Krzysztof; Apolinarska, Karina; Kołaczek, Piotr; Suchora, Magdalena; Fojutowski, Michał; Joniak, Tomasz; Kotrys, Bartosz; Kramkowski, Mateusz; Słowiński, Michael; Woźniak, Magdalena; Lamentowicz, Mariusz

doi:10.1016/j.catena.2020.104565

Cited by 22 publications

(15 citation statements)

References 58 publications

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“…<3.8 kyr BP) included only Fe, LOI550, and LOI950 analyses as well as dating. The Bayesian age-depth model for the core was calculated from 11 14 C AMS dates carried out on terrestrial plant macrofossils (Supporting Information S1; Pleskot et al, 2020). The model suggested that the mean accumulation rate in the sampled site of the lake was stable over the last 4.5 kyr BP, averaging 0.97 mm year −1 , except for a slump at ~4.15 kyr BP that resulted in an event-like deposition of 14 cm of sediment.…”

Section: Regional Settingmentioning

confidence: 99%

Responses of a shallow temperate lake ecosystem to major late-Holocene terrestrial vegetation shifts

et al. 2022

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Major terrestrial vegetation shifts (MTVSs) resulting from either human activities or natural processes can exert substantial pressure on lakes mainly through impacts on catchment biogeochemical cycles and groundwater circulation. To better understand the links between terrestrial vegetation dynamics and lake ecosystem structure and functions over long temporal scales, in this study, we reconstructed the responses of shallow Lake Spore (N Poland) to major late-Holocene vegetation shifts. We combined newly acquired data from pollen and spores, Cladocera, TOC/N, δ13C, and δ15N analyses of bulk organic matter with the already published results from sediment dating and analyses of several biotic and geochemical proxies. Statistical analysis of the abundance data for all the major terrestrial pollen taxa and reconstruction of vegetation openness derived from the REVEALS model indicated five MTVSs, each followed by a change in the lake environment. Changes in Lake Spore trophic status at MTVS1 (~2.82 kyr BP) and MTVS2 (~2.17 kyr BP) were attributed to the reorganization of the catchment’s nutrient cycling associated with a decline (MTVS1) and subsequent regeneration (MTVS2) of deciduous tree stands in the area. A distinct drop in the CaCO3 content of the lake sediments that started at MTVS4 (~0.57 kyr BP) likely occurred due to the substantial depletion of the water calcium pool following an abrupt transition from a tree-dominated to an herb-dominated landscape. Our record also suggested slight lake acidification following a spread of Pinus sylvestris at MTVS1 (~2.82 kyr BP) and MTVS3 (~1.10 kyr BP) and a lake level rise concurrent with the sharp increase in landscape openness at MTVS4 (~0.57 kyr BP).

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Section: Regional Settingmentioning

confidence: 99%

Responses of a shallow temperate lake ecosystem to major late-Holocene terrestrial vegetation shifts

et al. 2022

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“…Thus, P-I reconstructions should reflect the change in the range of vegetation composition in Eastern Europe. Pleskot et al [137] questions the presence of the 4.2-ka cal BP oscillation in Poland. At the STII M25 P-I, the higher continentality signal is clear at both events and has also been recorded in a few subsequent samples.…”

Section: Discussionmentioning

confidence: 99%

“…At the STII M25 P-I, the higher continentality signal is clear at both events and has also been recorded in a few subsequent samples. Pleskot et al [137] performed only CH-I T Jul reconstruction. The STII M25 CH-I T Jul reconstruction also gave a weak and ambiguous signal of 4.2-and 5.9-ka cal BP oscillations.…”

Section: Discussionmentioning

confidence: 99%

“…Hence, the P-I reconstructions may be considered as the primary result of the presented studies. It is difficult to recognize mid-Holocene (Northgrippian) oscillations, especially in Eastern Europe where the influence of NAO is weaker [24,69,137]. In order to speculate about their time shift (5.9 ka cal BP and 4.2 cal BP), it would be useful to increase the number of quantitative reconstructions for the area of Eastern Europe.…”

Section: Discussionmentioning

confidence: 99%

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Middle Holocene Climate Oscillations Recorded in the Western Dvina Lakeland

Mroczkowska

Pawłowski

Gauthier

et al. 2021

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Although extensive archeological research works have been conducted in the Serteya region in recent years, the Holocene climate history in the Western Dvina Lakeland in Western Russia is still poorly understood. The Neolithic human occupation of the Serteyka lake–river system responded to climate oscillations, resulting in the development of a pile-dwelling settlement between 5.9 and 4.2 ka cal BP. In this paper, we present the quantitative paleoclimatic reconstructions of the Northgrippian stage (8.2–4.2 ka cal BP) from the Great Serteya Palaeolake Basin. The reconstructions were created based on a multiproxy (Chironomidae, pollen and Cladocera) approach. The mean July air temperature remained at 17–20 °C, which is similar to the present temperature in the Smolensk Upland. The summer temperature revealed only weak oscillations during 5.9 and 4.2 ka cal BP. A more remarkable feature during those events was an increase in continentality, manifested by a lower winter temperature and lower annual precipitation. During the third, intermediate oscillation in 5.0–4.7 ka cal BP, a rise in summer temperature and stronger shifts in continental air masses were recorded. It is still unclear if the above-described climate fluctuations are linked to the North Atlantic Oscillation and can be interpreted as an indication of Bond events because only a few high-resolution paleoclimatic reconstructions from the region have been presented and these reconstructions do not demonstrate explicit oscillations in the period of 5.9 and 4.2 ka cal BP.

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“…However, contrasting environmental responses were identified in different zones with cooler and wetter conditions at higher latitudes (Bini et al, 2019; Booth et al, 2005; Wanner et al, 2011). Recent palaeoenvironmental reconstructions indicate that the 4.2 ka event in Eurasia was characterised by strong seasonality (Perşoiu et al, 2019; Pleskot et al, 2020). Palaeoecological and archaeological data show that the pile‐dwelling constructions at the Serteya II site were finally flooded (Kittel et al, 2018a; Kul'kova et al, 2015; Mazurkevich & Dolbunova, 2011).…”

Section: Discussionmentioning

confidence: 99%

On the border between land and water: The environmental conditions of the Neolithic occupation from 4.3 until 1.6 ka BC at Serteya, Western Russia

et al. 2020

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The paper presents the results of a palaeoecological study of Neolithic archaeological layers from a wetland, multilayer site, Serteya II (Western Russia). It contains, domestic structures, rich organic artefacts, skeletons, and ecofacts preserved within lacustrine deposits that are extremely important on a European scale. We employed a set of specialised palaeoecological analyses and accelerator mass spectrometry radiocarbon dating to identify the principal environmental conditions which attracted Neolithic hunter‐fisher‐gatherer communities from 4300 to 1600 cal. BC. The distinct impact of communities using a nonproductive economy on the ecology of the palaeolake shore zone was recorded. Also, palaeolake water level changes influenced the palaeoeconomic activity of local Neolithic societies, such as gathering of plants (for the medicinal use or serving as dietary components), fishing activities, and possible funeral practices. In addition, the identified phases of high‐water level changes, which were responses to climatic oscillations, were correlated with supraregional climatic events, especially ca. 6.2, 5.9, and 4.2 ka cal. BP. Thus, our results allowed for the reconstruction of environment transformations and conditions of Neolithic communities' activity, as well as for a better understanding of the relationships between local Neolithic communities' way of life and neolithisation processes in Eastern Europe.

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Searching for the 4.2 ka climate event at Lake Spore, Poland

Cited by 22 publications

References 58 publications

Responses of a shallow temperate lake ecosystem to major late-Holocene terrestrial vegetation shifts

Responses of a shallow temperate lake ecosystem to major late-Holocene terrestrial vegetation shifts

Middle Holocene Climate Oscillations Recorded in the Western Dvina Lakeland

On the border between land and water: The environmental conditions of the Neolithic occupation from 4.3 until 1.6 ka BC at Serteya, Western Russia

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