气候变化领域集成服务门户(CCPortal): Aridification history of the West Kunlun Mountains since the mid-Pleistocene based on sporopollen and microcharcoal records

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DOI	10.1016/j.palaeo.2020.109680
	Aridification history of the West Kunlun Mountains since the mid-Pleistocene based on sporopollen and microcharcoal records
	Wu F.; Fang X.; Miao Y.
发表日期	2020
ISSN	0031-0182
卷号	547
英文摘要	Loess is an eolian sediment and one of the Earth's most important surficial deposits, recording the evolution of arid climates. The loess in northwest China has received less research attention than that of the Chinese Loess Plateau. In this study, we obtained a 1 Ma sporopollen and microcharcoal record from a 207 m deep loess core extracted from the West Kunlun Mountains, southern Tarim Basin, representing China's driest inland region. Two ecological-environmental shifts were identified, at about 0.6 Ma and 0.1 Ma, when the percentage of shrub and herb pollen (especially the percentage of xeromorphic plants) and concentration of microcharcoal increased in stages, indicating increasing aridity and the stepwise expansion of the adjacent Taklimakan Desert. In addition, the percentage of broad-leaved trees decreased during these stages, while the percentage of conifers increased, which might indicate that the climate gradually became colder. Therefore, the long-term cooling may have been the main driving mechanism of stepwise aridification. © 2020 Elsevier B.V.
英文关键词	Central Asia; Conifer; Ecological change; Loess; Xeromorphic plants
语种	英语
scopus关键词	aridification; coniferous tree; environmental change; loess; Pleistocene; pollen; China; Kunlun Mountains; Coniferophyta
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150523
作者单位	Key Laboratory of Continental Collision and Plateau Uplift, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
推荐引用方式 GB/T 7714	Wu F.,Fang X.,Miao Y.. Aridification history of the West Kunlun Mountains since the mid-Pleistocene based on sporopollen and microcharcoal records[J],2020,547.
APA	Wu F.,Fang X.,&Miao Y..(2020).Aridification history of the West Kunlun Mountains since the mid-Pleistocene based on sporopollen and microcharcoal records.Palaeogeography, Palaeoclimatology, Palaeoecology,547.
MLA	Wu F.,et al."Aridification history of the West Kunlun Mountains since the mid-Pleistocene based on sporopollen and microcharcoal records".Palaeogeography, Palaeoclimatology, Palaeoecology 547(2020).