Bibliografia publikacji pracowników
Państwowej Szkoły Wyższej w Białej Podlaskiej
Baza tworzona przez Bibliotekę Akademii Bialskiej im. Jana Pawła II.
Zapytanie:
SIENKIEWICZ ELWIRA Liczba odnalezionych rekordów: 2
Przejście do opcji zmiany formatu | Wyświetl/ukryj etykiety | Wyświetlenie wyników w wersji do druku | Pobranie pliku do edytora | Nowe wyszukiwanie Streszczenie: The profile of the Lipowo palaeolake (NE Poland) preserves a record of environmental and climate changes from the Last Glacial Termination (16.5k cal ka BP), stretching from the Oldest Dryas to the youngest Allerod warm oscillation. In this interdisciplinary study of the lacustrine succession at Lipowo, we used biological and geochemical indicators and multiproxy analyses to reconstruct environmental changes in the lake ecosystem, such as mollusc, zooplankton and vegetation development, trophic state, water temperature and water level. Four cold and four warm climate oscillations of different durations were identified on this basis: the Older Dryas climate deterioration and two short-term coolings within the Allerod Interstadial, separated by warm periods in the Bolling and Allerod. The covering of the lake series by diamicton deposits from the melting of dead-ice blocks is a particularly interesting and rare phenomenon for a postglacial area. The hydrological system of the catchment was generally closed, with a periodically opening and existing flow-through lake. Over the period of the lake's existence, vegetation changed in general from steppe tundra to forest with birch and pine. For most of this time, the palaeolake was mainly oligotrophic, with increased productivity and a higher trophic level only notable during the middle Bolling.
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Nr opisu: 0000035699 Autorzy: Jerzy Antoni Nitychoruk, Krzysztof Binka, Elwira Sienkiewicz, Marcin Szymanek, Marta Chodyka, Michał Makos, Hans Ruppert, Alina Tudryn. Tytuł pracy: A multiproxy record of the Younger Holsteinian Oscillation (YHO) in the Ossówka profile, eastern Poland Tytuł czasopisma: Szczegóły: 2018, Vol. 47, issue 3, p. 855--868 p-ISSN: 0300-9483 e-ISSN: 1502-3885 Charakterystyka formalna: artykuł w czasopiśmie zagranicznym Charakterystyka merytoryczna: artykuł oryginalny naukowy Charakterystyka wg MNiSW: artykuł w czasopiśmie z IF (wykaz MEiN) Język publikacji: ENG Wskaźnik Impact Factor ISI: 3.531 Punktacja ministerstwa: 35.000 Praca recenzowana Słowa kluczowe ang.: interglacial ; climate ; holsteinian ; YHO ; lake sediments ; Poland Uwaga: Kopia dostępna w Sekcji Bibliometrii. https://onlinelibrary.wiley.com/doi/abs/10.1111/bor.12308 DOI: 10.1111/bor.12308 Streszczenie: The laminated lacustrine succession at Ossówka in eastern Poland, which is largely the equivalent of MIS 11c, is amongst the best-developed sites in Europe that cover this time period. Close inspection of the depth interval between 35.0 and 42.5 m in a 55-m-long core shows an environmental crisis at a depth of 40.95 m that lasted approximately 800 years and resulted in almost complete extinction of fir (Abies) from the communities existing at that time. Geochemical analyses reveal a simultaneous increase in sulphur in the deposits and a change in stable carbon and oxygen isotope ratios towards higher values, as well as a significant increase in the thickness of the laminae (up to 5 mm). Diatom studies show a clear increase in benthic diatoms in this interval, implying a decrease in water level. However, the predominance of such forms was probably caused by the elimination of planktonic diatoms by invasive blooms of Tetraedron, rather than lower lake levels, evidence of which was not noted in the pollen spectra. Hence, all these changes in the lake may have been triggered by the destruction of fir trees, the gradual decomposition of dead trunks and some inconspicuous geomorphological disturbances caused by wind throw. They resulted in a supply of micronutrients to the basin, an increase in varve thickness and rapid oscillations in the abundance and composition of algae and changes in the geochemical status of the lake. Rapid and significant drops in winter temperatures appear to be responsible for the extinction of fir. Alternatively, late frost in spring or hot and dry summers may have affected microsporophyll growth and the fir physiology as known from extant Abies populations. This environmental crisis, which is termed the Younger Holsteinian Oscillation (YHO), is noted at only a few sites. At Dethlingen (Germany), where hornbeam communities disappear at that time, a drop in summer temperatures is suggested to have been the driving force. We suggest that, at Ossówka, a drop in winter temperatures, late frost, or summer drought at the very start of the YHO are possible causes of the near-extinction of fir. Projekt/grant: Korelacja faz osadnictwa pradziejowego i wczesnośredniowiecznego w Polsce północno-wschodniej z przemianami środowiska przyrodniczego w świetle badań osadów jeziornych (Correlation of prehistoric and early medieval settlement phases in northeast Poland with the changes of the natural environment in the light of lacus-trine sediments study) : Narodowe Centrum Nauki, UMO-2016/21/B/ST10/03059 Projekt/grant: Zastosowanie innowacyjnej metody komputerowej do analizy obrazu okrzemek i zmian paleośrodowiskowychw Holocenie na Pojezierzu Iławskim : Fundusz Grantów na Badania Własne / PSW Biała Podlaska, SNW-51-FG.V.4-1/17
