干旱区生态环境知识资源中心(Arid): Paleoclimatic proxies from global closed basins and the possible beginning of Anthropocene

Arid

DOI	10.1007/s11442-021-1870-8
	Paleoclimatic proxies from global closed basins and the possible beginning of Anthropocene
	Li Yu; Han Qin; Hao Lu; Zhang Xinzhong; Chen Dawei; Zhang Yuxin; Xu Lingmei; Ye Wangting; Peng Simin; Li Yichan; Feng Zhuowen; Liu Hebin
通讯作者	Li, Y (corresponding author), Lanzhou Univ, Coll Earth & Environm Sci, Ctr Hydrol Cycle & Water Resources Arid Reg, Key Lab Western Chinas Environm Syst,Minist Educ, Lanzhou 730000, Peoples R China.
来源期刊	JOURNAL OF GEOGRAPHICAL SCIENCES
ISSN	1009-637X
EISSN	1861-9568
出版年	2021
卷号	31 期号:6 页码:765-784
英文摘要	Global closed basins, occupying almost one fifth of the world's land area, spatially coincide with arid and semiarid areas. Paleoclimatic proxies can indicate basin-wide environmental change and human activity. However, previous studies have not approached the use of proxies in the same way to reconstruct natural and anthropogenic processes at regional and global scales. Here we present a regional study to investigate the basic processes of paleoclimatic proxies, from a typical closed-basin system in arid China. We use multiple paleoclimatic proxies of surface samples and sediments, as well as groundwater and sediment ages to study environmental change and human activity. We then establish a dataset for paleoclimatic proxies from global closed basins and do a numerical analysis on it. Regional studies verify that human activity greatly impacts paleoclimatic proxies, especially with regard to surface samples, as well as groundwater age, but Holocene sediments are less affected. Results from global studies indicate that the major changing trend of the wet/dry status of closed basins is associated with the movement of the westerly jet streams controlled by long-term changes in winter insolation. There is an abrupt change between 1800 AD and 1900 AD, according to a numerical synthesis of paleoclimatic proxies from global closed basins, which can be linked to human impact. We suggest this time period can be considered as a start point for the Anthropocene based on the sedimentary evidence of closed basins, globally.
英文关键词	Anthropocene closed basins paleoclimatic proxies westerly jet streams Asian summer monsoon climate change
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000658175600001
WOS关键词	HEIHE RIVER-BASIN ; QINGHAI-TIBETAN PLATEAU ; ARID CENTRAL-ASIA ; NORTHERN CHINA ; CLIMATE-CHANGE ; LATE HOLOCENE ; MONSOON ; RECORD ; CARBON ; WATER
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367967
作者单位	[Li Yu; Han Qin; Hao Lu; Zhang Xinzhong; Chen Dawei; Zhang Yuxin; Xu Lingmei; Ye Wangting; Peng Simin; Li Yichan; Feng Zhuowen; Liu Hebin] Lanzhou Univ, Coll Earth & Environm Sci, Ctr Hydrol Cycle & Water Resources Arid Reg, Key Lab Western Chinas Environm Syst,Minist Educ, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Li Yu,Han Qin,Hao Lu,et al. Paleoclimatic proxies from global closed basins and the possible beginning of Anthropocene[J]. 兰州大学,2021,31(6):765-784.
APA	Li Yu.,Han Qin.,Hao Lu.,Zhang Xinzhong.,Chen Dawei.,...&Liu Hebin.(2021).Paleoclimatic proxies from global closed basins and the possible beginning of Anthropocene.JOURNAL OF GEOGRAPHICAL SCIENCES,31(6),765-784.
MLA	Li Yu,et al."Paleoclimatic proxies from global closed basins and the possible beginning of Anthropocene".JOURNAL OF GEOGRAPHICAL SCIENCES 31.6(2021):765-784.