Latest Pleistocene to mid-Holocene vegetation changes revealed by multi-proxy analyses at Lop Nur in the eastern Central Asia

doi:10.1016/j.palaeo.2025.113249

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	Latest Pleistocene to mid-Holocene vegetation changes revealed by multi-proxy analyses at Lop Nur in the eastern Central Asia
	Yao, Yi-Feng 1,2; Lu, Kai-Qing 1; Qin, Feng 3; Wang, Guo-An 4; Yang, Qin-Min 5; Zhou, Xin-Ying6 ; Ferguson, David K.7; Xie, Gan 1,2; Li, Jin-Feng 1,2; Sun, Bin 1,2; Blackmore, Stephen 8; Wang, Yu-Fei 1,2
	2025-11-15
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	678 页码:12
通讯作者	Yao, Yi-Feng(yaoyf@ibcas.ac.cn) ; Blackmore, Stephen(sblackmore@rbge.org.uk) ; Wang, Yu-Fei(wangyf@ibcas.ac.cn)
摘要	The dried-up lake bed of Lop Nur is a well-known example of environmental change in arid Central Asia (ACA) and witnessed the rise and fall of a major Silk Road civilization. However, a lack of interdisciplinary analyses, quantitative climate data together with inadequate characterization of the desert vegetation has hindered a comprehensive understanding of past vegetation and environmental changes in the region. Here we perform a high-resolution analysis of pollen, grain size, stable carbon and nitrogen isotopes from a 617-cm sediment core from Lop Nur to reconstruct vegetational and environmental changes between similar to 23.3 to 7.2 cal kyr BP and understand their potential drivers. Results show that variations in solar activity and westerlies drove water circulation in the region, triggering an alternateon between temperate shrubby desert and temperate semi-shrubby/dwarf semi-shrubby desert, accompanied by the fluctuations in lake level fed by alpine meltwater. Lake organic matter was mainly derived from aquatic vascular plants and phytoplankton in the latest Pleistocene (similar to 23.3-11.6 cal kyr BP), but shifted to a greater diversity of sources (soil, C-3 terrestrial plants, aquatic vascular plants and phytoplankton) in the early to middle Holocene (11.6-7.2 cal kyr BP), while the nitrogen levels in the lake sediment were mainly controlled by soil erosion, and only marginally influenced by atmospheric nitrogen deposition. These findings provide a past analog for the prediction of future environmental change and ecosystem sustainable development in ACA under the scenario of global change.
关键词	Arid Central Asia Desert vegetation Environmental change Multi-proxy Northwestern China Pollen
DOI	10.1016/j.palaeo.2025.113249
关键词[WOS]	MODERN POLLEN ASSEMBLAGES ; NORTHWESTERN CHINA ; ORGANIC-MATTER ; XINJIANG ; NITROGEN ; HISTORY ; CLIMATE ; LAKE ; PRECIPITATION ; EVOLUTION
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2022YFF0801102] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[32070240] ; National Natural Science Foundation of China[42077416] ; National Natural Science Foundation of China[42077423] ; National Natural Science Foundation of China[42472005] ; China National Key Basic Research Program[2014CB954201]
项目资助者	National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; China National Key Basic Research Program
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:001568065200001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/25028
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Yao, Yi-Feng; Blackmore, Stephen; Wang, Yu-Fei
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Plant Divers & Specialty Crops, 20 Nanxincun, Beijing 100093, Peoples R China 2.China Natl Bot Garden, Beijing 100093, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 4.China Agr Univ, Coll Resources & Environm Sci, Dept Environm Sci & Engn, Beijing 100193, Peoples R China 5.Zhejiang Univ, Coll Control Sci & Engn, Hangzhou 310027, Peoples R China 6.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 7.Univ Vienna, Dept Palaeontol, Althanstr 14, A-1090 Vienna, Austria 8.Royal Bot Garden Edinburgh, 20a Inverleith Row, Edinburgh EH35LR, Scotland
推荐引用方式 GB/T 7714	Yao, Yi-Feng,Lu, Kai-Qing,Qin, Feng,et al. Latest Pleistocene to mid-Holocene vegetation changes revealed by multi-proxy analyses at Lop Nur in the eastern Central Asia[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2025,678:12.
APA	Yao, Yi-Feng.,Lu, Kai-Qing.,Qin, Feng.,Wang, Guo-An.,Yang, Qin-Min.,...&Wang, Yu-Fei.(2025).Latest Pleistocene to mid-Holocene vegetation changes revealed by multi-proxy analyses at Lop Nur in the eastern Central Asia.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,678,12.
MLA	Yao, Yi-Feng,et al."Latest Pleistocene to mid-Holocene vegetation changes revealed by multi-proxy analyses at Lop Nur in the eastern Central Asia".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 678(2025):12.