干旱区生态环境知识资源中心(Arid): Early Eocene southern China dominated by desert: Evidence from a palynological record of the Hengyang Basin, Hunan Province

Arid

DOI	10.1016/j.gloplacha.2020.103320
	Early Eocene southern China dominated by desert: Evidence from a palynological record of the Hengyang Basin, Hunan Province
	Xie, Yulong; Wu, Fuli; Fang, Xiaomin; Zhang, Dawen; Zhang, Weilin
通讯作者	Wu, FL ; Fang, XM
来源期刊	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
EISSN	1872-6364
出版年	2020
卷号	195
英文摘要	The India-Asia collision and subsequent uplift of the Tibetan Plateau during the Cenozoic were the main drivers of Asian monsoon development and evolution. However, the climate and possible existence of a desert landscape in southern China prior to the significant uplift of the Tibetan Plateau remain uncertain, because of a lack of reliable proxies or direct geological evidence. The well-preserved early Eocene palynomorphs recovered from the Hengyang Basin, southern China, provide an ideal opportunity to address this problem. The palynological record suggests that the Hengyang Basin was dominated by xerophytic shrubs and an open forest vegetation landscape, confirming that a typical arid desert environment prevailed in the Hengyang Basin during the early Eocene. The high proportion of thermophilic and xerophytic taxa implies a hot and arid climate. The estimated mean annual precipitation (< 230 mm) of the early Eocene in the Hengyang Basin was significantly lower than that of present (1354 mm). We propose that, prior to the significant uplift of the Tibetan Plateau, the combined effects of a strong subtropical anticyclone associated with the extremely warm climate and a rain-shadow effect caused by coastal mountains, were the primary factors responsible for the extreme arid climate and desert-like landscape of inland southern China during the early Eocene.
英文关键词	Early Eocene Desert Hengyang Basin Southern China Palynological record
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000592359700005
WOS关键词	LAND-SEA DISTRIBUTION ; ASIAN MONSOON ; TIBETAN PLATEAU ; MODERN POLLEN ; TARIM BASIN ; CLIMATE ; RECONSTRUCTION ; PALEOCLIMATE ; VEGETATION ; REORGANIZATION
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
来源机构	中国科学院青藏高原研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327640
作者单位	[Xie, Yulong; Wu, Fuli; Fang, Xiaomin; Zhang, Weilin] Chinese Acad Sci, Inst Tibetan Plateau Res, CAS Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China; [Xie, Yulong; Wu, Fuli; Fang, Xiaomin; Zhang, Weilin] Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; [Xie, Yulong; Fang, Xiaomin] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Zhang, Dawen] Zaozhuang Univ, Coll Tourism & Resource Environm, Zaozhuang 277160, Peoples R China
推荐引用方式 GB/T 7714	Xie, Yulong,Wu, Fuli,Fang, Xiaomin,et al. Early Eocene southern China dominated by desert: Evidence from a palynological record of the Hengyang Basin, Hunan Province[J]. 中国科学院青藏高原研究所,2020,195.
APA	Xie, Yulong,Wu, Fuli,Fang, Xiaomin,Zhang, Dawen,&Zhang, Weilin.(2020).Early Eocene southern China dominated by desert: Evidence from a palynological record of the Hengyang Basin, Hunan Province.GLOBAL AND PLANETARY CHANGE,195.
MLA	Xie, Yulong,et al."Early Eocene southern China dominated by desert: Evidence from a palynological record of the Hengyang Basin, Hunan Province".GLOBAL AND PLANETARY CHANGE 195(2020).