Bibliografia publikacji pracowników
Państwowej Szkoły Wyższej w Białej Podlaskiej
Baza tworzona przez Bibliotekę Akademii Bialskiej im. Jana Pawła II.
Zapytanie:
SUN QIANLI Liczba odnalezionych rekordów: 3
Przejście do opcji zmiany formatu | Wyświetl/ukryj etykiety | Wyświetlenie wyników w wersji do druku | Pobranie pliku do edytora | Nowe wyszukiwanie Streszczenie: During African Humid Period in the Holocene when the summer Intertropical Convergence Zone migrated to its northernmost position, the Qarun Lake in the Faiyum Oasis in Egypt was fed with regular inflows from the Nile River and rainfall brought by the Mediterranean winter circulation. Finely-laminated lake sediments, dated at 8.5-6.7 cal kyr B.P., were examined in terms of lithology, geochemistry, microfossils (diatom, pollen) and magnetic susceptibility. Based on the inferred geographical derivation of pollen, the environmental affiliation of diatom taxa and geochemistry of lake sediments, wind trajectories were distinguished, related to two main atmospheric circulation phases. During the earlier phase (8.50-7.83 cal kyr B.P.) there were northwestern wind trajectories followed by southern ones and during the later phase (7.83-6.70 cal kyr B.P.), the northern winds were followed by northwestern and southern ones. Northwestern and northern winds brought winter rainfall and caused water turbulence in the lake, and the southern winds were associated with regional aridification. This scenario of atmospheric circulation in northeastern Africa extends significantly our understanding of key modes of climatic variability and wind trajectories in the Early to Middle Holocene (Greenlandian to Northgrippian) transition. Projekt/grant: Rekonstrukcja zmian klimatu w dorzeczu Nilu w holocenie i ich wpływ na rozwój cywilizacji starożytnego Egiptu : Narodowe Centrum Nauki, DEC-2012/05/B/ST10/00558
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Nr opisu: 0000034974 Autorzy: Leszek Marks, Alaa Salem, Fabian Welc, Jerzy Antoni Nitychoruk, Zhongyuan Chen, Maarten Blaauw, Abdelfattah Zalat, Aleksandra Majecka, Marcin Szymanek, Marta Chodyka, Anna Tołoczko-Pasek, Qianli Sun, Xiaoshuang Zhao, Jun Jiang. Tytuł pracy: Holocene lake sediments from the Faiyum Oasis in Egypt: : a record of environmental and climate change Tytuł czasopisma: Szczegóły: 2018, Vol. 47, Issue 1, p. 62--79 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.: holocene ; lake sediments ; Faiyum Oasis ; environmental change ; climate change Uwaga: Kopia dostępna w Sekcji Bibliometrii http://onlinelibrary.wiley.com/doi/10.1111/bor.12251/abstract DOI: 10.1111/bor.12251 Streszczenie: The Qarun Lake in the Faiyum Oasis (Egypt) provides a unique record of Holocene environmental and climate change in an arid area largely devoid of fossil proxy records. Multiple lithological, palaeontological and geochemical proxies and 32 radiocarbon dates from the 26-m-long core FA-1 provide a time series of the lake's transformation. Our results confirm that a permanent lake appeared in the Holocene at c. 10 cal. ka BP. The finely laminated lake sediments consist of diatomite, in which diatoms and ostracods together with lower concentrations of ions indicate a freshwater environment at the end of the early and middle Holocene. This freshwater supply was closely associated with regular inflows of the Nile water during flood seasons, when the Intertropical Convergence Zone (ITCZ) migrated northwards in Africa, although it has probably never reached the Faiyum Oasis. Local rainfall, possibly connected with a northern atmospheric circulation, may have been important during winter. Several phases in the lake's evolution are recognized, represented by oscillations between deep open freshwater conditions during more humid climate and shallow fresh to brackish water during drier episodes. After a long freshwater phase, the lake setting has become more brackish since c. 6.2 cal. ka BP as indicated by diatoms and increasing contents of evaporite ions in the sediment. This clearly shows that since that time the lake has occasionally become partly desiccated. This is a result of reduced discharge of the Nile. In the late Holocene the lake was mostly brackish and then gradually turned into a saline lake. This natural process was interrupted about 2.3 cal. ka BP when a man-made canal facilitated water inflow from the Nile. The examined FA-1 core can be used as a reference age model of climate change in the Holocene and its impact on the development and decline of ancient civilizations in northeastern Africa. 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
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Nr opisu: 0000033785 Autorzy: Abdelfattah A. Zalat, Leszek Marks, Fabian Welc, Alaa Salem, Jerzy Antoni Nitychoruk, Zhongyuan Chen, Aleksandra Majecka, Marcin Szymanek, Marta Chodyka, Anna Tołoczko-Pasek, Qianli Sun, Xiaoshuang Zhao, Jun Jiang. Tytuł pracy: Diatom Stratigraphy of FA-1 Core, Qarun Lake, Records of Holocene Environmental and Climatic Change in Faiyum Oasis, Egypt Tytuł czasopisma: Szczegóły: 2017, Vol. 34, no. 1, p. 61--69 p-ISSN: 1641-5558 Charakterystyka formalna: artykuł w czasopiśmie polskim Charakterystyka merytoryczna: artykuł oryginalny naukowy Charakterystyka wg MNiSW: artykuł w czasopiśmie bez IF (wykaz MEiN) Język publikacji: ENG Punktacja ministerstwa: 14.000 Słowa kluczowe: holocen ; środowisko ; zmiany klimatu ; jezioro Karun ; okrzemki ; oaza Fajum ; Egipt Słowa kluczowe ang.: holocene ; environment ; climate change ; Qarun Lake ; diatoms ; Faiyum Oasis ; Egypt Uwaga: Kopia dostepna w Sekcji Bibliometrii Inne bazy podające opis:
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IC Journals Master List
http://www.studia.quaternaria.pan.pl/pdfs/sq34-1/5_Zalat.pdf DOI: 10.1515/squa-017-0005 Streszczenie: This study evaluates changes in the environmental and climatic conditions in the Faiyum Oasis during the Holocene based on diatom analyses of the sediment FA-1 core from the southern seashore of the Qarun Lake. The studied FA-1 core was 26 m long and covered the time span ca. 9.000 cal. yrs BP. Diatom taxa were abundant and moderately to well-preserved throughout the core sediments. Planktonic taxa were most abundant than the benthic and epiphytic forms, which were very rare and sparsely distributed. The most dominant planktonic genera were Aulacoseira and Stephanodiscus followed by frequently distribution of Cyclostephanos and Cyclotella species. The stratigraphic distribution patterns of the recorded diatoms through the Holocene sediments explained five ecological diatom groups. These groups represent distinctive environmental conditions, which were mainly related to climatic changes through the early and middle Holocene, in addition to anthropogenic activity during the late Holocene. Comparison of diatom assemblages in the studied sediment core suggests that considerable changes occurred in water level as well as salinity. There were several high stands of the freshwater lake level during humid, warmer-wet climatic phases marked by dominance of planktonic, oligohalobous and alkaliphilous diatoms alternated with lowering of the lake level and slight increases in salinity and alkalinity during warm arid conditions evident by prevalence of brackish water diatoms. Projekt/grant: Opracowanie nowych algorytmów analizy obrazu z wykorzystaniem sztucznych sieci komputerowych : działalność statutowa WNET PSW, 2017-WNET/KNT/ZI/1
