Holocene environmental changes reflected by pollen, diatoms, and geochemistry of annually laminated sediments of Lake Suminko in the Kashubian Lake District (N Poland)

Pędziszewska, Anna; Tylmann, Wojciech; Witak, Małgorzata; Piotrowska, Natalia; Maciejewska, Emilia; Latałowa, Małgorzata

doi:10.1016/j.revpalbo.2015.01.008

Cited by 44 publications

(29 citation statements)

References 91 publications

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“…This coincides well with the wetter phase in Poland at that time ) as well as with high water levels in the Jura mountains (Magny 2004). According to Pędziszewska et al (2015), who found a similar record in Suminko Lake sediments (Fig. 1b), the aforementioned wet phase could be related to a cold period triggered by a distinct disturbance of termohaline circulation that took place in the north Atlantic Ocean at the same time (Bond et al 1997;Björck et al 2001;Sternal et al 2014).…”

Section: Lake-level Changes During the Holocenesupporting

confidence: 80%

Holocene paleohydrological reconstruction of Lake Strzeszyńskie (western Poland) and its implications for the central European climatic transition zone

et al. 2017

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Western Poland is located in the central European climatic transition zone, which separates the mild and humid Atlantic climate of Western Europe and the East European continental climate. This region is sensitive to lateral shifts of the European climate zones and is particularly suitable for reconstructing Holocene climate variability. This paper presents detailed analyses of the sedimentary record from Lake Strzeszyńskie since the Late Pleistocene. These include smear-slide and thin-section observations, X-ray fluorescence core scanning, magnetic susceptibility measurements, pollen analyses, and radiocarbon dating. The sediment record reveals three distinct sedimentary units consisting of: (1) an alternation of sand layers and laminated silt and clay deposits accumulated prior to 14,600 cal yr BP; (2) faintly laminated calcareous sediments intercalated with organic matter-rich layers deposited between 14,600 and 10,200 cal yr BP; and (3) massive calcareous mud deposited after 10,200 cal yr BP. The Holocene period is marked by nine phases of organicrich sedimentation and enhanced Fe deposition, which occurred at ca. 10.1, 9.3, 6.4-6.1, 5.5-5.1, 4.7-4.5, 2.7-2.4, 1.3-1.2, 0.8-0.6, 0.4-0.2 kyr cal BP. These phases are associated with high lake levels and correspond with wet periods recognized in several other records from Poland and central Europe. These phases partly coincide with North Atlantic cold periods, which may suggest that high lake levels are triggered by an ocean-continent linking mechanism.

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Section: Lake-level Changes During the Holocenesupporting

confidence: 80%

Holocene paleohydrological reconstruction of Lake Strzeszyńskie (western Poland) and its implications for the central European climatic transition zone

et al. 2017

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“…Stabilization of local settlements was associated with permanent deforestation of large surfaces and placement of fields and meadows in the lake catchment. Therefore, these years should mark major transformations of plant cover as pollen analysis is an excellent tool for the reconstruction of natural and man-made changes in vegetation (Allen et al, 1999;Barnekow, 2000;Ralska-Jasiewiczowa, et al, 2003;Pędziszewska, et al, 2015). Indeed, the major change in the pollen diagram is recorded around AD 1600 (according to the varve chronology) and manifested by reduction of arboreal pollen (AP) and simultaneous increase in non-arboreal pollen (NAP) (Fig.…”

Section: Discussionmentioning

confidence: 99%

Comparing Varve Counting And <sup>14</sup>C-Ams Chronologies In The Sediments Of Lake Żabińskie, Northeastern Poland: Implications For Accurate <sup>14</sup>C Dating Of Lake Sediments

et al. 2015

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Varved lake sediments from Lake Żabińskie (northeastern Poland) provide a highresolution calendar-year chronology which allows validation of 14 C dating results. Microscopic analysis of the varve microfacies revealed that laminations found in Lake Żabińskie were biogenic (calcite) varves. Three independent counts indicated a good preservation quality of laminae in the 348 cm long sediment profile which contained 1000 +12 / -24 varves. The varve chronology was validated with the 137 Cs activity peaks, the tephra horizon from the Askja eruption at AD 1875 and with the timing of major land-use changes of known age inferred from pollen analysis. 32 AMS 14 C dates of terrestrial macrofossils distributed along the profile were compared with the varve chronology. After identification of outliers, the free-shape model performed with 21 14 C dates provided the best possible fit with the varve chronology. We observed almost ideal consistency between both chronologies from the present until AD 1250 while in the lower part (AD 1000-1250) the difference increases to ca. 25 years. We demonstrate that this offset can be explained by too old radiocarbon ages of plant remains transported to the lake by the inflowing creek. Results of this study highlight that careful interpretation of radiocarbon age-depth models is necessary, especially in lakes where no annual laminations are observed and no independent method are used for cross-validation.

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“…Stebich et al 2005). In the south-east Baltic area, the chronologically most precise palaeoenvironmental data for the last millennium were obtained from the analysis of laminated sediments of Lakes Gością _ z (Ralska-Jasiewiczowa et al 1998), Suminko (Pędziszewska et al 2015), Łazduny (Wacnik et al 2012), Szurpiły (Kinder et al 2008;Kupryjanowicz pers. comm.…”

Section: Introductionmentioning

confidence: 99%

Determining the responses of vegetation to natural processes and human impacts in north-eastern Poland during the last millennium: combined pollen, geochemical and historical data

Wacnik

Tylmann

Bonk

et al. 2016

Veget Hist Archaeobot

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Pollen, charcoal and geochemical investigations were carried out on annually laminated sediments of Lake _ Zabińskie (54°07 0 54.5 00 N; 21°59 0 01.1 00 E) and the results were combined with historical and climate data to better understand the mechanism behind plant cover transformations. A millennium-long record of environmental history at 6-years time resolution permitted an assessment of vegetation responses to past human impact and climate fluctuations. Our results show that the history of the region with repeated periods of warfare, epidemics, famine and crop failures is well reflected by environmental proxies. Before the Teutonic Order crusade (AD 1230-1283), agricultural activities of the Prussian tribes were conducted at a distance from the studied lake and caused slight disturbances of local forests. A stronger human impact was registered after ca AD 1460. We confirm that co-domination of pine forests with spruce and oakhornbeam forests on drier habitats as well as the presence of birch and alder woods on wet surfaces near the lake lasted until AD 1610. We identified a transition period of 20 years between AD 1590 and 1610, when forest cover was significantly reduced and the area was partly transformed into open land used for farming activities. The comparison of our data with other pollen datasets from the region confirms significant spatio-temporal differences in the initiation of large-scale woodland clearings in the Great Masurian Lake District. A strong increase in local cultivation was noted after AD 1750 and became even stronger in the period AD 1810-1940. The last 60 years experienced a succession from arable fields and open grasslands to more tree-covered habitats overgrown by birch and alder.

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Holocene environmental changes reflected by pollen, diatoms, and geochemistry of annually laminated sediments of Lake Suminko in the Kashubian Lake District (N Poland)

Cited by 44 publications

References 91 publications

Holocene paleohydrological reconstruction of Lake Strzeszyńskie (western Poland) and its implications for the central European climatic transition zone

Holocene paleohydrological reconstruction of Lake Strzeszyńskie (western Poland) and its implications for the central European climatic transition zone

Comparing Varve Counting And <sup>14</sup>C-Ams Chronologies In The Sediments Of Lake Żabińskie, Northeastern Poland: Implications For Accurate <sup>14</sup>C Dating Of Lake Sediments

Determining the responses of vegetation to natural processes and human impacts in north-eastern Poland during the last millennium: combined pollen, geochemical and historical data

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