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

CCPortal

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, Fuli; Fang, Xiaomin; Miao, Yunfa
通讯作者	Wu, FL (通讯作者)
发表日期	2020
ISSN	0031-0182
EISSN	1872-616X
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.
关键词	CENTRAL-ASIA LOESS DEPOSITS TARIM BASIN TIBETAN PLATEAU EVOLUTION PLEISTOCENE PLIOCENE CLIMATE DESERT PALEOMAGNETISM
英文关键词	Conifer; Xeromorphic plants; Ecological change; Central Asia; Loess
语种	英语
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000528206600012
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259771
推荐引用方式 GB/T 7714	Wu, Fuli,Fang, Xiaomin,Miao, Yunfa. Aridification history of the West Kunlun Mountains since the mid-Pleistocene based on sporopollen and microcharcoal records[J]. 中国科学院青藏高原研究所,2020,547.
APA	Wu, Fuli,Fang, Xiaomin,&Miao, Yunfa.(2020).Aridification history of the West Kunlun Mountains since the mid-Pleistocene based on sporopollen and microcharcoal records.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,547.
MLA	Wu, Fuli,et al."Aridification history of the West Kunlun Mountains since the mid-Pleistocene based on sporopollen and microcharcoal records".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 547(2020).