干旱区生态环境知识资源中心(Arid): Surface pollen assemblages from different sedimentary environments in the Yinchuan Basin, North China, and their significance for stratigraphic pollen records

Arid

DOI	10.1016/j.quaint.2021.02.015
	Surface pollen assemblages from different sedimentary environments in the Yinchuan Basin, North China, and their significance for stratigraphic pollen records
	Li, Xinling; Wei, Mingjian; Zhang, Shengrui; Cai, Maotang; Wang, Junping
通讯作者	Wei, MJ (corresponding author), Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R China.
来源期刊	QUATERNARY INTERNATIONAL
ISSN	1040-6182
EISSN	1873-4553
出版年	2021
卷号	583 页码:103-109
英文摘要	Understanding the sources areas and transport mechanisms of pollen grains is important for reconstructing vegetation and climate from fossil pollen data. We studied the modern pollen assemblages of 28 surface samples from different geomorphic units (mountains, the central basin, and the riverine zone) in the Yinchuan Basin in China. Our aim was to compare the characteristics of the pollen assemblages from the different sedimentary environments and to determine the differences in pollen source areas and transport mechanisms. The results show that: (1) The pollen assemblages from the mountain and piedmont alluvial fan environments were dominated by trees, with the tree pollen content decreasing with decreasing altitude. The pollen in the piedmont alluvial fan environment was mainly transported by surface runoff, and assemblage combines the characteristics of both the mountain and the local vegetation. (2) The pollen assemblages from the central basin were dominated by pollen produced by the zonal desert-steppe vegetation. (3) The pollen assemblages from the riverine zone were dominated by a long-distance component from within the upper part of the drainage area. The results suggest that in sedimentary pollen records from the Yinchuan Basin, the arboreal pollen component primarily reflects vegetation changes within the surrounding mountains; the herbaceous pollen component is an indicator of changes in desert-steppe vegetation; and the long-distance fluvially-transported pollen component reflects vegetation changes in the upstream drainage area.
英文关键词	Yinchuan basin Sedimentary environment Surface pollen spectra Stratigraphic pollen records
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000636691900010
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351448
作者单位	[Li, Xinling; Zhang, Shengrui] Hebei Normal Univ, Coll Resources & Environm Sci, Shijiazhuang 050024, Hebei, Peoples R China; [Li, Xinling; Zhang, Shengrui] Hebei Normal Univ, Hebei Key Lab Environm Change & Ecol Construct, Shijiazhuang 050024, Hebei, Peoples R China; [Li, Xinling; Zhang, Shengrui] Hebei Normal Univ, Hebei Technol Innovat Ctr Remote Sensing Identifi, Shijiazhuang 050024, Hebei, Peoples R China; [Wei, Mingjian; Wang, Junping] Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R China; [Cai, Maotang] Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Li, Xinling,Wei, Mingjian,Zhang, Shengrui,et al. Surface pollen assemblages from different sedimentary environments in the Yinchuan Basin, North China, and their significance for stratigraphic pollen records[J],2021,583:103-109.
APA	Li, Xinling,Wei, Mingjian,Zhang, Shengrui,Cai, Maotang,&Wang, Junping.(2021).Surface pollen assemblages from different sedimentary environments in the Yinchuan Basin, North China, and their significance for stratigraphic pollen records.QUATERNARY INTERNATIONAL,583,103-109.
MLA	Li, Xinling,et al."Surface pollen assemblages from different sedimentary environments in the Yinchuan Basin, North China, and their significance for stratigraphic pollen records".QUATERNARY INTERNATIONAL 583(2021):103-109.