气候变化领域集成服务门户(CCPortal): Pre-industrial cyanobacterial dominance in Lake Moon (NE China) revealed by sedimentary ancient DNA

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DOI	10.1016/j.quascirev.2021.106966
	Pre-industrial cyanobacterial dominance in Lake Moon (NE China) revealed by sedimentary ancient DNA
	Zhang, Jifeng; Liu, Jianbao; Yuan, Yanli; Zhou, Aifeng; Chen, Jie; Shen, Zhongwei; Chen, Shengqian; Zhang, Zhiping; Zhang, Ke
通讯作者	Liu, JB (通讯作者)
发表日期	2021
ISSN	0277-3791
EISSN	1873-457X
卷号	261
英文摘要	Cyanobacterial blooms in water bodies have occurred on a worldwide basis in the last few decades, and knowledge of their occurrence under natural conditions, and of the mechanisms responsible, is impor-tant for understanding their origin. However, little is known about the long-term trends in cyano-bacterial abundance in the pre-industrial era, and its causes. Traditional microscope analysis of microfossil plankton is widely applied in paleoecology, yet the majority of phytoplankton (e.g., cyano-bacteria) are not preserved as microfossils in sediments, although they can leave a fingerprint in the form of sedimentary ancient DNA (sedaDNA). Here, sedaDNA is used for the first time to reconstruct the history of phytoplankton communities in a crater lake in northern China over the past two millennia. Our data show that changes in phytoplankton community structure and diversity were linked to temperature and precipitation variations during-0e140 0 Common Era (CE). However, after-1400 CE the cyano-bacterial abundance increased to an unprecedented degree, and cyanobacteria (mainly composed of Synechococcus) became disproportionately dominant relative to other phytoplankton. This rise was concomitant with increased aeolian dust input by winds driven by an intensified Siberian High, which resulted in increased dust transport across the entire mid-latitude region of the Northern Hemisphere. This suggests that dust input can exceed natural climatic variability as the dominant control on lake ecosystems in regions subject to dust deposition. We suggest that future lake ecological management strategies in areas of dust deposition should consider not only the influence of climatic warming but also the impact of nutrient inputs delivered by dust storms. (c) 2021 Elsevier Ltd. All rights reserved.
关键词	HARMFUL ALGAL BLOOMS NORTHEASTERN CHINA COMMUNITY COMPOSITION VARVED SEDIMENTS CLIMATE-CHANGE POLLEN RECORD DUST STORMS SOURCE AREA MAAR LAKE SIHAILONGWAN
英文关键词	sedaDNA; Cyanobacteria; Dust storms; Temperature; Northern China; Last two millennia
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000652624400006
来源期刊	QUATERNARY SCIENCE REVIEWS
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/260158
推荐引用方式 GB/T 7714	Zhang, Jifeng,Liu, Jianbao,Yuan, Yanli,et al. Pre-industrial cyanobacterial dominance in Lake Moon (NE China) revealed by sedimentary ancient DNA[J]. 中国科学院青藏高原研究所,2021,261.
APA	Zhang, Jifeng.,Liu, Jianbao.,Yuan, Yanli.,Zhou, Aifeng.,Chen, Jie.,...&Zhang, Ke.(2021).Pre-industrial cyanobacterial dominance in Lake Moon (NE China) revealed by sedimentary ancient DNA.QUATERNARY SCIENCE REVIEWS,261.
MLA	Zhang, Jifeng,et al."Pre-industrial cyanobacterial dominance in Lake Moon (NE China) revealed by sedimentary ancient DNA".QUATERNARY SCIENCE REVIEWS 261(2021).