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DOI | 10.1016/j.quaint.2012.11.026 |
Over-representation of Picea pollen induced by water transport in arid regions | |
Wu, Fuli; Fang, Xiaomin; An, Congrong; Herrmann, Mark; Zhao, Yan; Miao, Yunfa | |
通讯作者 | Fang, XM (通讯作者) |
发表日期 | 2013 |
ISSN | 1040-6182 |
起始页码 | 134 |
结束页码 | 140 |
卷号 | 298 |
英文摘要 | Picea pollen plays an important role for reconstructing a cold-humid climate or palaeo-elevations. However, research has not yet taken into account the pollen transportation pathways within rivers in arid regions. A sporopollen study of surface (the uppermost) river sediments and surface soils from the Heihe and Shiyang Rivers (originating in the Qilian Mountains) suggests that significant differences exist between Picea pollen percentages within these two different sediment types. In surface soils the Picea pollen fractions are low, representing transportation by wind. However, percentages of Picea pollen reach up to 15.9% of total pollen counts in surface river sediments, as far as about 120 km away from the lower spruce forest line. This result, together with the demonstrated enrichment of Picea pollen in water bodies that lie along those observed rivers, indicate an over-representation within fluvial and lacustrine sediments. Knowledge about these relationships provides fundamental information for the reconstruction of palaeo-vegetation, palaeo-climate or palaeo-elevations. (C) 2012 Elsevier Ltd and INQUA. All rights reserved. |
关键词 | MISSISSIPPI-RIVERSEDIMENTSBASINCHINATAPHONOMYCLIMATETIBET |
语种 | 英语 |
WOS研究方向 | Physical Geography ; Geology |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS记录号 | WOS:000320212400014 |
来源期刊 | QUATERNARY INTERNATIONAL
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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/258130 |
推荐引用方式 GB/T 7714 | Wu, Fuli,Fang, Xiaomin,An, Congrong,et al. Over-representation of Picea pollen induced by water transport in arid regions[J]. 中国科学院青藏高原研究所,2013,298. |
APA | Wu, Fuli,Fang, Xiaomin,An, Congrong,Herrmann, Mark,Zhao, Yan,&Miao, Yunfa.(2013).Over-representation of Picea pollen induced by water transport in arid regions.QUATERNARY INTERNATIONAL,298. |
MLA | Wu, Fuli,et al."Over-representation of Picea pollen induced by water transport in arid regions".QUATERNARY INTERNATIONAL 298(2013). |
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