Seasonal diatom variability of Yunlong Lake, southwest China - a case study based on sediment trap records

doi:10.1080/0269249X.2018.1541823

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院新生代地质与环境重点实验室

	Seasonal diatom variability of Yunlong Lake, southwest China - a case study based on sediment trap records
	Zou, Yafei 1,2; Wang, Luo 1; Zhang, Lizhou 3; Liu, Yuan 4; Li, Peng 4; Peng, Zhiyuan 5; Yan, Yao 4; Zhang, Jiaoyang 4; Lu, Houyuan 1,2,6
刊名	DIATOM RESEARCH
	2018
卷号	33 期号:3 页码:381-396
关键词	Yunlong Lake diatoms seasonal variation sediment trap two-year record
ISSN号	0269-249X
DOI	10.1080/0269249X.2018.1541823
英文摘要	Yunlong Lake, a subtropical alpine lake in southwest China, was selected for a sediment trap diatom study between September 2013 and August 2015. Combining the results of meteorological records, water temperature monitoring and water chemistry sampling, we draw the following conclusions: water temperature monitoring indicated that the entire upper 7m of the water column was mixed throughout the year, reflecting the lake's strong mixing characteristics; this ensured the year-round growth of planktonic species and the high abundance of benthic species. In addition, the diatoms exhibited a pronounced biannual warm-cold seasonal pattern, which may be related to water temperature, Si nutrient concentration and thermal stratification. During the warm season (May-November) when the lake was almost stratified, with overall higher water temperature and Si concentration, the representative species were Aulacoseira granulata var. angustissima and Achnanthidium catenatum. During the cold season (December-April), the water temperature and Si nutrient concentration were lower, but stronger lake mixing occurred, and the blooming species included Aulacoseira ambigua, Discostella asterocostata and Lindavia balatonis. After a detailed analysis, we conclude that the seasonal diatom succession was primarily driven by water temperature, and comparison with other lake records indicates that the strong mixing mechanism and Si were not the determinants of the lake diatom seasonal succession. Our data also show that during the first cold season, diatoms bloomed in the following sequence: A. ambigua - D. asterocostata - Discostella stelligera - L. balatonis - Discostella pseudostelligera, as Si decreased over the season, indicating that smaller species were more competitive in obtaining limited nutrients. Finally, there were interannual differences between diatom assemblages in the second year, especially in the abundance of L. balatonis and the occurrence of Asterionella formosa, which were probably related to the significantly increased lake trophic status.
资助项目	National Key R&D Program of China[2017YFA0603400] ; National Natural Science Foundation of China[41372372] ; National Natural Science Foundation of China[41772379] ; National Basic Research Program of China[2015CB953801]
WOS关键词	QUANTITATIVE INDICATORS ; CLIMATE-CHANGE ; PHYTOPLANKTON ; DYNAMICS ; ASSEMBLAGES ; NUTRIENT ; PLANKTON ; INFERENCES ; CYCLOTELLA ; RESPONSES
WOS研究方向	Marine & Freshwater Biology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000459800300007
资助机构	National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Basic Research Program of China ; National Basic Research Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Basic Research Program of China ; National Basic Research Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Basic Research Program of China ; National Basic Research Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Basic Research Program of China ; National Basic Research Program of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/90700]
专题	地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者	Wang, Luo
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 3.Adm Bur Yunlong Tianchi Natl Nat Reserve, Yunlong, Peoples R China 4.Univ Geosci, Sch Earth & Resources, Beijing, Peoples R China 5.China Geol Survey, Guangzhou Marine Geol Survey, Guangzhou, Guangdong, Peoples R China 6.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zou, Yafei,Wang, Luo,Zhang, Lizhou,et al. Seasonal diatom variability of Yunlong Lake, southwest China - a case study based on sediment trap records[J]. DIATOM RESEARCH,2018,33(3):381-396.
APA	Zou, Yafei.,Wang, Luo.,Zhang, Lizhou.,Liu, Yuan.,Li, Peng.,...&Lu, Houyuan.(2018).Seasonal diatom variability of Yunlong Lake, southwest China - a case study based on sediment trap records.DIATOM RESEARCH,33(3),381-396.
MLA	Zou, Yafei,et al."Seasonal diatom variability of Yunlong Lake, southwest China - a case study based on sediment trap records".DIATOM RESEARCH 33.3(2018):381-396.