中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Developmental characteristics of aeolian dunes and environmental changes in the adjoining region of Puruogangri ice sheet, North Tibetan Plateau

文献类型:期刊论文

作者Zhang, WM; Wang, T; Qu, JJ; Li, XZ; Zou, RP; Yang, B
刊名ENVIRONMENTAL GEOLOGY
出版日期2005-06-01
卷号48期号:1页码:15-24
关键词sand dune evolution C-14 dating of humus layers Puruoganri ice sheet North Tibetan Plateau
ISSN号0943-0105
DOI10.1007/s00254-005-1242-1
通讯作者Zhang, WM(weimin@ns.lzb.ac.cn)
英文摘要A large area of moraine sediments and cryogenic weathering products, formed by glacial action and a cold environment, are the main source of aeolian sand in the high and cold region of the Qinghai-Tibetan Plateau in China. The evolution of aeolian dunes is closely related to the periglacial environment. Owing to the freezing of dune-land surfaces, the evolution of sand dunes is dominated by expanding dune bases and vertical accretion, thereby forming large barchan dunes. The migration rates of these large barchan dunes are very slow at an average rate of 1.7-0.7 cm center dot a(-1). The temperature mainly controls the environmental changes in the adjoining region of Puruogangri ice sheet. The C-14 dating of humus layers in the studied area of the sand dune are 10,780 +/- 130, 9,549 +/- 1130, 8,320 +/- 110, 7,450 +/- 100, 5,970 +/- 95, 5,330 +/- 90, 4,420 +/- 80, 3,460 +/- 80, 2,280 +/- 170, 980 +/- 70 aBP, respectively. The region's high temperature rising up during summer from the southwest monsoon intensity might be an important factor. As long as both water and temperature conditions are suitable, the plants will grow well, sand dunes will be stabilized, forming humus layers. Otherwise, sand dunes are bare and re-activate.
收录类别SCI
WOS关键词MONSOON ; LOESS ; CORE
WOS研究方向Environmental Sciences & Ecology ; Geology ; Water Resources
WOS类目Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
语种英语
WOS记录号WOS:000230591600003
出版者SPRINGER
URI标识http://www.irgrid.ac.cn/handle/1471x/2555712
专题寒区旱区环境与工程研究所
通讯作者Zhang, WM
作者单位Chinese Acad Sci, Key Lab Desert & Desertificat, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Zhang, WM,Wang, T,Qu, JJ,et al. Developmental characteristics of aeolian dunes and environmental changes in the adjoining region of Puruogangri ice sheet, North Tibetan Plateau[J]. ENVIRONMENTAL GEOLOGY,2005,48(1):15-24.
APA Zhang, WM,Wang, T,Qu, JJ,Li, XZ,Zou, RP,&Yang, B.(2005).Developmental characteristics of aeolian dunes and environmental changes in the adjoining region of Puruogangri ice sheet, North Tibetan Plateau.ENVIRONMENTAL GEOLOGY,48(1),15-24.
MLA Zhang, WM,et al."Developmental characteristics of aeolian dunes and environmental changes in the adjoining region of Puruogangri ice sheet, North Tibetan Plateau".ENVIRONMENTAL GEOLOGY 48.1(2005):15-24.

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来源:寒区旱区环境与工程研究所

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