气候变化领域集成服务门户(CCPortal): Spatial distribution of diatom assemblages in the surface sediments of Selin Co, central Tibetan Plateau, China, and the controlling factors

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DOI	10.1016/j.jglr.2019.09.006
	Spatial distribution of diatom assemblages in the surface sediments of Selin Co, central Tibetan Plateau, China, and the controlling factors
	Yu, Siwei; Wang, Junbo; Li, Yameng; Peng, Ping; Kai, Jinlei; Kou, Qiangqiang; Laug, Andreas
通讯作者	Wang, JB (通讯作者)
发表日期	2019
ISSN	0380-1330
起始页码	1069
结束页码	1079
卷号	45 期号:6
英文摘要	Currently there are few studies on modern diatom ecology in large lakes on the Tibetan Plateau. To illustrate spatial patterns of diatom communities and study the correlation with environmental variables, 143 surface sediments were sampled from the largest lake (Selin Co) on the central Tibetan Plateau. A total of 143 diatom species belonging to 30 genera were identified, most of which were halophilic and basophilic species. Our results show that diatom communities exhibit a distinct spatial pattern in different environments including fluvial rivers, the inlet of Selin Co, the small lake region and the large lake region of Selin Co. Based on a depth-constrained cluster analysis, the diatom taxa were divided into three different communities: the shallow sedimentary zone (0-12 m), middle sedimentary zone (12-22 m) and deep sedimentary zone (22-48 m). The dominant species were Cocconeis placentula, Nitzschia hungarica and Anomoeoneis costata respectively. Through Canonical correspondence analysis, it was indicated that the spatial distribution of the diatom assemblages was mainly influenced by water depth, grain size and temperature, with water depth being the dominant factor. WA-PLS and WA regression models were used to establish a diatom-depth transfer function (r(boot)(2) = 0.73, RMSEP = 0.19; r(boot)(2) = 0.76, RMSEP = 0.19), further demonstrating the correlation between the diatom community and water depth. Our results defined the spatial distributions and controlling factors of diatom assemblages from the different environments. (C) 2019 International Association for Great Lakes Research. Published by Elsevier B.V. All rights reserved.
关键词	ENVIRONMENTAL-CHANGES LAKE LEVEL NAM CO SALINITY DIVERSITY STREAMS
英文关键词	Diatoms; Spatial community patterns; Transfer function; Environmental variables; Water depth
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Limnology ; Marine & Freshwater Biology
WOS记录号	WOS:000504780900005
来源期刊	JOURNAL OF GREAT LAKES RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259605
推荐引用方式 GB/T 7714	Yu, Siwei,Wang, Junbo,Li, Yameng,et al. Spatial distribution of diatom assemblages in the surface sediments of Selin Co, central Tibetan Plateau, China, and the controlling factors[J]. 中国科学院青藏高原研究所,2019,45(6).
APA	Yu, Siwei.,Wang, Junbo.,Li, Yameng.,Peng, Ping.,Kai, Jinlei.,...&Laug, Andreas.(2019).Spatial distribution of diatom assemblages in the surface sediments of Selin Co, central Tibetan Plateau, China, and the controlling factors.JOURNAL OF GREAT LAKES RESEARCH,45(6).
MLA	Yu, Siwei,et al."Spatial distribution of diatom assemblages in the surface sediments of Selin Co, central Tibetan Plateau, China, and the controlling factors".JOURNAL OF GREAT LAKES RESEARCH 45.6(2019).