干旱区生态环境知识资源中心(Arid): DIATOM STRATIGRAPHY OF FA-1 CORE, QARUN LAKE, RECORDS OF HOLOCENE ENVIRONMENTAL AND CLIMATIC CHANGE IN FAIYUM OASIS, EGYPT

Arid

DOI	10.1515/squa-017-0005
	DIATOM STRATIGRAPHY OF FA-1 CORE, QARUN LAKE, RECORDS OF HOLOCENE ENVIRONMENTAL AND CLIMATIC CHANGE IN FAIYUM OASIS, EGYPT
	Zalat, Abdelfattah A.; Marks, Leszek; Welc, Fabian; Salem, Alaa; Nitychoruk, Jerzy; Chen, Zhongyuan; Majecka, Aleksandra; Szymanek, Marcin; Chodyka, Marta; Toloczko-Pasek, Anna; Sun, Qianli; Zhao, Xiaoshuang; Jiang, Jun
通讯作者	Zalat, AA
来源期刊	STUDIA QUATERNARIA
ISSN	1641-5558
EISSN	2300-0384
出版年	2017
卷号	34 期号:1 页码:61-69
英文摘要	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.
英文关键词	Holocene environment climate change Qarun Lake diatoms Faiyum Oasis Egypt
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000414744500006
WOS关键词	NORTH-AMERICA ; SEDIMENTS ; SALINITY ; ASSEMBLAGES ; LACUSTRINE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332355
作者单位	[Zalat, Abdelfattah A.] Tanta Univ, Fac Sci, Tanta, Egypt; [Marks, Leszek; Majecka, Aleksandra; Szymanek, Marcin; Toloczko-Pasek, Anna] Univ Warsaw, Fac Geol, Warsaw, Poland; [Welc, Fabian] Cardinal Stefan Wyszynski Univ, Inst Archaeol, Warsaw, Poland; [Salem, Alaa] Kafrelsheikh Univ, Fac Sci, Kafrelsheikh, Egypt; [Nitychoruk, Jerzy; Chodyka, Marta] John Paul 2nd State Higher Sch, Fac Econ & Tech Sci, Biala Podlaska, Poland; [Chen, Zhongyuan; Sun, Qianli; Zhao, Xiaoshuang; Jiang, Jun] East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China
推荐引用方式 GB/T 7714	Zalat, Abdelfattah A.,Marks, Leszek,Welc, Fabian,et al. DIATOM STRATIGRAPHY OF FA-1 CORE, QARUN LAKE, RECORDS OF HOLOCENE ENVIRONMENTAL AND CLIMATIC CHANGE IN FAIYUM OASIS, EGYPT[J],2017,34(1):61-69.
APA	Zalat, Abdelfattah A..,Marks, Leszek.,Welc, Fabian.,Salem, Alaa.,Nitychoruk, Jerzy.,...&Jiang, Jun.(2017).DIATOM STRATIGRAPHY OF FA-1 CORE, QARUN LAKE, RECORDS OF HOLOCENE ENVIRONMENTAL AND CLIMATIC CHANGE IN FAIYUM OASIS, EGYPT.STUDIA QUATERNARIA,34(1),61-69.
MLA	Zalat, Abdelfattah A.,et al."DIATOM STRATIGRAPHY OF FA-1 CORE, QARUN LAKE, RECORDS OF HOLOCENE ENVIRONMENTAL AND CLIMATIC CHANGE IN FAIYUM OASIS, EGYPT".STUDIA QUATERNARIA 34.1(2017):61-69.