Warming favors subtropical lake cyanobacterial biomass increasing

doi:10.1016/j.scitotenv.2020.138606

	Warming favors subtropical lake cyanobacterial biomass increasing
	Yan, Dongna 5; Xu, Hai 1; Lan, Jianghu 2,5; Yang, Ming 3; Wang, Fushun 3; Hou, Weiguo 4; Zhou, Kangen 5; An, Zhisheng 5
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2020-07-15
卷号	726 页码:7
关键词	DNA Cyanobacteria Temperature Precipitation Last millennium
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2020.138606
通讯作者	Xu, Hai(xuhai@tju.edu.cn)
英文摘要	Subtropical lakes are increasingly subject to cyanobacterial blooms resulting from climate change and anthropogenic activities, but the lack of long-term historical data limits understanding of how climate changes have affected cyanobacterial growth in deep subtropical lakes. Using high-resolution DNA data derived from a sediment core from a deep lake in southwestern China, together with analysis of other sedimentary hydroclimatic proxies, we investigated cyanobacterial biomass and microbial biodiversity in relation to climate changes during the last millennium. Our results show that both cyanobacterial abundance and microbial biodiversity were higher during warmer periods, including the Medieval Warm Period (930-1350 CE) and the Current Warm Period (1900 CE-present), but lower during cold periods, including the Little Ice Age (1400-1850 CE). The significant increases in cyanobacterial abundance and microbial biodiversity during warmer intervals are probably because warm climate not only favors cyanobacterial growth but also concentrates lake water nutrients through water budgets between evaporation and precipitation. Furthermore, because rising temperatures result in greater vertical stratification in deep lakes, cyanobacteria may have exploited these stratified conditions and accumulated in dense surface blooms. We anticipate that under anthropogenic warming conditions, cyanobacterial biomass may continue to increase in subtropical deep lakes. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[41672169] ; National Natural Science Foundation of China[41991253] ; National Natural Science Foundation of China (NSFC)-Israel Science Foundation (ISF) research program[41761144070]
WOS关键词	CLIMATE-CHANGE ; PRECIPITATION CHANGES ; SEDIMENTS ; CHINA ; EUTROPHICATION ; TEMPERATURE ; VARIABILITY ; DIVERSITY ; CHENGHAI ; PATTERNS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000537422200007
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China (NSFC)-Israel Science Foundation (ISF) research program
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/14880]
专题	地球环境研究所_现代环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Xu, Hai
作者单位	1.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 3.Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China 4.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Yan, Dongna,Xu, Hai,Lan, Jianghu,et al. Warming favors subtropical lake cyanobacterial biomass increasing[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,726:7.
APA	Yan, Dongna.,Xu, Hai.,Lan, Jianghu.,Yang, Ming.,Wang, Fushun.,...&An, Zhisheng.(2020).Warming favors subtropical lake cyanobacterial biomass increasing.SCIENCE OF THE TOTAL ENVIRONMENT,726,7.
MLA	Yan, Dongna,et al."Warming favors subtropical lake cyanobacterial biomass increasing".SCIENCE OF THE TOTAL ENVIRONMENT 726(2020):7.