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题名: Pollen transport in the Shiyang River drainage, arid China
作者: Zhu, Y; Xie, YW; Cheng, B; Chen, FH(陈发虎); Zhang, JW
收录类别: SCIE ; CPCI-S
出版日期: 2003-07
会议名称: Symposium on Abrupt Environmental Changes in Arid Asia History and Mechanisms (RACHAD 2001)
会议日期: OCT, 2001
会议地点: LANZHOU, PEOPLES R CHINA
英文摘要: In order to assess the contribution of the pollen transported by wind and fluvial flows to the pollen spectra in Shiyang River drainage, a typical small endorheic drainage in and lands of northwest China, preliminary studies on modern pollen rain along two transects with 91 surface soil samples, 8 atmospheric samples, 30 modern fluvial flow samples and 50 riverbed mud samples, were carried out. Results show that dispersal agents (air, flowing water) have dissimilar effects on transport of pollen and the structure of pollen spectra. Fluvial flow has a stronger capacity than wind to transport large quantities of pollen over long distances. Pollen transported by fluvial flow makes a large contribution to the pollen spectra of riverbed alluvial sediments. Paleoenvironmental reconstructions undertaken using pollen spectra from fluvial sediments in and lands are strongly influenced by pollen transport. Therefore, the sources, the transportation agents and the depositional condition of pollen should be systematically investigated before pollen assemblages are used to derive the environmental significance in such settings.
关键词: modern pollen transport ; arid regions ; Shiyang River drainage
作者部门: Lanzhou Univ, Ctr Arid Environm & Paleoclimate Res, Natl Lab W Chinas Environm Syst, Lanzhou 730000, Peoples R China ; NW Normal Univ, Coll Geog & Environm, Lanzhou 730070, Peoples R China ; Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China
通讯作者: Zhu, Y (reprint author), Lanzhou Univ, Ctr Arid Environm & Paleoclimate Res, Natl Lab W Chinas Environm Syst, Lanzhou 730000, Peoples R China.
学科分类: Science & Technology - Other Topics
会议主办者: LANZHOU UNIV
会议录: CHINESE SCIENCE BULLETIN
卷号: 48
期号: 14
页码: 1499-1506
出版者: SCIENCE CHINA PRESS
出版地: BEIJING
语种: 英语
DOI: 10.1360/02wd0261
ISSN号: 1001-6538
WOS记录号: WOS:000184463300019
IR记录号: WOS:000184463300019
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内容类型: 会议论文
URI标识: http://ir.lzu.edu.cn/handle/262010/184643
Appears in Collections:资源环境学院_会议论文

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Recommended Citation:
Zhu, Y,Xie, YW,Cheng, B,et al. Pollen transport in the Shiyang River drainage, arid China[C]. 见:Symposium on Abrupt Environmental Changes in Arid Asia History and Mechanisms (RACHAD 2001). LANZHOU, PEOPLES R CHINA. OCT, 2001.
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