气候变化领域集成服务门户(CCPortal): A prolonged dry Mid-Holocene recorded by Moon Lake in the Tengger Desert, arid and semiarid China

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DOI	10.1017/qua.2023.77
	A prolonged dry Mid-Holocene recorded by Moon Lake in the Tengger Desert, arid and semiarid China
	Duan, Futao; An, Cheng-Bang; Wang, Wei; Zhao, Yongtao; Zhou, Aifeng
发表日期	2024
ISSN	0033-5894
EISSN	1096-0287
英文摘要	Reconstructing the Mid-Holocene climate change in arid and semiarid areas can help predict regional moisture availability and resultant lake evolution and vegetation changes due to future warming. Here, we present a sediment core (YLH15A) from Moon Lake in the Tengger Desert, arid and semiarid China. Based on robust accelerator mass spectrometry 14C dating and multiproxy analyses (pollen, grain size, elements, and total organic carbon), we reconstructed regional climate changes since 7.6 cal ka BP. The climate was generally dry from 7.6 to 2.8 cal ka BP, as indicated by the dried-up lake, strong aeolian activities, and no vegetation, except for a short-term wet interval between 5.4 and 4.9 cal ka BP. The generally dry climate shifted after 2.8 cal ka BP, which is suggested by expanded steppe desert/steppe and increased vegetation cover; it was also accompanied by lake development, which was likely related to increased groundwater recharge originating from regional precipitation and temporary floods from adjacent mountain areas. Our results reveal a prolonged dry Mid-Holocene and relatively wet Late Holocene that are basically consistent with climatic records from the central-east Asian arid and hyperarid areas. The prolonged dry climate in the arid and hyperarid areas is likely to be related to high evaporation triggered by high temperatures during the Middle Holocene.
英文关键词	Moon Lake; Tengger Desert; Mid-Holocene; Arid areas; Prolonged dry climate
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:001135093400001
来源期刊	QUATERNARY RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/288644
作者单位	Nanjing University of Information Science & Technology; Lanzhou University; Chinese Academy of Sciences
推荐引用方式 GB/T 7714	Duan, Futao,An, Cheng-Bang,Wang, Wei,et al. A prolonged dry Mid-Holocene recorded by Moon Lake in the Tengger Desert, arid and semiarid China[J],2024.
APA	Duan, Futao,An, Cheng-Bang,Wang, Wei,Zhao, Yongtao,&Zhou, Aifeng.(2024).A prolonged dry Mid-Holocene recorded by Moon Lake in the Tengger Desert, arid and semiarid China.QUATERNARY RESEARCH.
MLA	Duan, Futao,et al."A prolonged dry Mid-Holocene recorded by Moon Lake in the Tengger Desert, arid and semiarid China".QUATERNARY RESEARCH (2024).