Arid
DOI10.1007/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
Corresponding AuthorLi, 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.
JournalJOURNAL OF GEOGRAPHICAL SCIENCES
ISSN1009-637X
EISSN1861-9568
Year Published2021
Volume31Issue:6Pages:765-784
Abstract in EnglishGlobal 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.
Keyword in EnglishAnthropocene closed basins paleoclimatic proxies westerly jet streams Asian summer monsoon climate change
SubtypeArticle
Language英语
Indexed BySCI-E
WOS IDWOS:000658175600001
WOS KeywordHEIHE RIVER-BASIN ; QINGHAI-TIBETAN PLATEAU ; ARID CENTRAL-ASIA ; NORTHERN CHINA ; CLIMATE-CHANGE ; LATE HOLOCENE ; MONSOON ; RECORD ; CARBON ; WATER
WOS SubjectGeography, Physical
WOS Research AreaPhysical Geography
Source Institution兰州大学
Document Type期刊论文
Identifierhttp://119.78.100.177/qdio/handle/2XILL650/367967
Affiliation[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
Recommended Citation
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.
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