IGGCAS OpenIR  > 新生代地质与环境院重点实验室
Seasonal diatom variability of Yunlong Lake, southwest China - a case study based on sediment trap records
Zou, Yafei1,2; Wang, Luo1; Zhang, Lizhou3; Liu, Yuan4; Li, Peng4; Peng, Zhiyuan5; Yan, Yao4; Zhang, Jiaoyang4; Lu, Houyuan1,2,6
2018
Source PublicationDIATOM RESEARCH
ISSN0269-249X
Volume33Issue:3Pages:381-396
AbstractYunlong 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.
KeywordYunlong Lake diatoms seasonal variation sediment trap two-year record
DOI10.1080/0269249X.2018.1541823
Funding OrganizationNational 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
WOS KeywordQUANTITATIVE INDICATORS ; CLIMATE-CHANGE ; PHYTOPLANKTON ; DYNAMICS ; ASSEMBLAGES ; NUTRIENT ; PLANKTON ; INFERENCES ; CYCLOTELLA ; RESPONSES
Language英语
Funding ProjectNational 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]
Funding OrganizationNational 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
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000459800300007
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/90700
Collection新生代地质与环境院重点实验室
Corresponding AuthorWang, Luo
Affiliation1.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
Recommended Citation
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.
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