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Climatic Changes in the Qinghai-Xizang (Tibetan) Region of China during the Holocene

Published online by Cambridge University Press:  20 January 2017

Wang Fu-Bao  and
C. Y. Fan
Wang Fu-Bao
Affiliation:
Department of Geography, Nanjing University, Nanjing, The People's Republic of China
C. Y. Fan
Affiliation:
Department of Physics, University of Arizona, Tucson, Arizona 85721 USA
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Abstract

Climatic changes in the Qinghai-Xizang Plateau of China were studied by analyzing the composition of peat and layers of sand and gravel distributed along the southern slopes of Nianqing-Tanggula and Gangdise Mountains, cross sections of deposits near a number of interior lakes in Xizang, past glacial variations on the southern slope of Nianqing-Tanggula Mountain, and landform changes south of the Yaluzangbu River. Such geologic evidence suggests a division of five climatic periods since the beginning of the Holocene: (1) The Wumadung interval, 10,000–7500 yr B.P., slightly cold and dry; (2) Qilongduo interval, 7500-3000 yr B.P., warm and moist; (3) the mid-Neoglacial period, 3000-1500 yr B.P., cold, except between 2500 and 200 yr B.P. when it was warmer; (4) the Dawelong interval, 1500-300 yr B.P., mild; and (5) the Little Ice Age, 300-0 yr B.P., cold. These changes progressed in a similar but not identical pattern as those in the northeastern part of China and in the northern region of Europe.

Information

Type
Articles
Information
Quaternary Research , Volume 28 , Issue 1 , July 1987 , pp. 50 - 60
Copyright
University of Washington

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