气候变化领域集成服务门户(CCPortal): Pediastrum (Chlorophyceae) assemblages in surface lake sediments in China and western Mongolia and their environmental significance

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DOI	10.1016/j.revpalbo.2021.104396
	Pediastrum (Chlorophyceae) assemblages in surface lake sediments in China and western Mongolia and their environmental significance
	Xiang, Lixiong; Huang, Xiaozhong; Huang, Chong; Chen, Xuemei; Wang, Haipeng; Chen, Jianhui; Hu, Yu; Sun, Mingjie; Xiao, Yulin
通讯作者	Huang, XZ (通讯作者)，Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China. ; Chen, XM (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources Res, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0034-6667
EISSN	1879-0615
卷号	289
英文摘要	Pediastrum Meyen is often well preserved in lake sediments and its abundance and species composition are very sensitive to changes in the aquatic environment. Previous studies have shown that changes in the composition or abundance of Pediastrum species have great potential for studying paleoenvironmental evolution. However, until now, very few studies have explored the environmental significance of Pediastrum and used it as a paleoclimatic or paleoenvironmental indicator. In this study, we investigated the occurrence of Pediastrum in 26 natural lakes and 17 reservoirs, with varying hydro-chemical and climatic gradients, in China and western Mongolia. 25 Pediastrum taxa (including species and varieties) were found in the surface sediments of 36 different water bodies, and the spatial distribution characteristics of Pediastrum species and the environmental factors determining the community composition were identified using both Canonical Correspondence Analysis (CCA) and extended Huisman-Olff-Fresco (eHOF) methods. The results demonstrate that mean annual temperature is the most significant environmental variable influencing modern Pediastrum species composition and abundance. Water salinity and trophic status are probably secondary factors that are responsible for the variations in the abundance of Pediastrum species, and they cannot survive in water bodies with total dissolved solids (TDS) higher than similar to 2-3 g L-1. Overall, our results indicate that Pediastrum assemblages have great potential for reconstructing environmental variables in the past, and therefore that they can be used for environmental monitoring in global warming research. (C) 2021 Published by Elsevier B.V.
关键词	SENSU-LATO CHLOROPHYCEAE NON-POLLEN PALYNOMORPHS CLIMATIC VARIABILITY VEGETATION CHANGES INNER-MONGOLIA QAIDAM BASIN GREEN-ALGAE HYDRODICTYACEAE RECORD HISTORY
英文关键词	Pediastrum; Paleolimnology; Ecology; Temperature; Trophic status
语种	英语
WOS研究方向	Plant Sciences ; Paleontology
WOS类目	Plant Sciences ; Paleontology
WOS记录号	WOS:000661871200003
来源期刊	REVIEW OF PALAEOBOTANY AND PALYNOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254459
作者单位	[Xiang, Lixiong; Huang, Xiaozhong; Huang, Chong; Chen, Jianhui; Hu, Yu; Sun, Mingjie; Xiao, Yulin] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China; [Chen, Xuemei; Wang, Haipeng] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources Res, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Xiang, Lixiong,Huang, Xiaozhong,Huang, Chong,et al. Pediastrum (Chlorophyceae) assemblages in surface lake sediments in China and western Mongolia and their environmental significance[J]. 中国科学院西北生态环境资源研究院,2021,289.
APA	Xiang, Lixiong.,Huang, Xiaozhong.,Huang, Chong.,Chen, Xuemei.,Wang, Haipeng.,...&Xiao, Yulin.(2021).Pediastrum (Chlorophyceae) assemblages in surface lake sediments in China and western Mongolia and their environmental significance.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,289.
MLA	Xiang, Lixiong,et al."Pediastrum (Chlorophyceae) assemblages in surface lake sediments in China and western Mongolia and their environmental significance".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 289(2021).