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 9th IAMAS
Scientific
Assembly
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Lake level change and its environmental evolution at the end of Heihe River, Inner Mongolia, China
Wuyun Qi, Kunihiko Endo, Hidehiro Sohma, Guijin Mu, Xiangmin Zheng, Kazuaki Hori, Taisuke Murata, Masayoshi Nakawo
The lake area at the end of Heihe River, Inner Mongolia, China, is one of the most sensitive place with response to the environmental change within the margin of Asian monsoon. On the northern slope of the Qilian Mountains, broad alluvial fans extend toward northernmost end of the Heihe drainage basin. There are Juyan terminal lakes such as Gashun, Sogo and Tian-e-hu lakes situated in desert environment from northwest to southeast. Recently those lakes were almost dried up excluding temporary supply of water. Tian-e-hu lake is a small lake situated in the northwestern end of Old Juyan lake, that has been dried up in the historical time. Based on the AMS dating of old gravel bars, lake deposits and core samples, and the analyses of pollen, 18O of carbonate, 13C of organic carbon and grain size for core samples, the paper reconstructs the process of lake level changes, climatic changes and vegetation succession in the region during the Holocene. It also explores the shift of rivers and lakes in the drainage basin, combined with distribution of historic archaeological relics.
Keywords: TERMINAL LAKES OF HEIHE, HOLOCENE, LAKE LEVEL CHANGE, LAKE CORE, ENVIRONMENTAL EVOLUTION
Wuyun Qi, Chinese Academy of Sciences, Inst. of Archaeology, Beijing 100710, China, qiwuyun@chikyu.ac.jp
Kunihiko Endo, Nihon University, Dept. of Geosystem Sciences, Tokyo 156-8550, Japan
Hidehiro Sohma, Nara Women’s University, Dept. of International Studies for History, Sociology and Geography, Nara 630-8506, Japan, hsohma@cc.nara-wu.ac.jp
Guijin Mu, Chinese Academy of Sciences, Xinjiang Inst. of Ecology and Geography, Xinjiang 830011, China
Xiangmin Zheng, East China Normal University, Shanghai 200062, China
Kazuaki Hori, Meijo University, Nagoya 468-8502, Japan
Taisuke Murata, Nihon University, Dept. of Geosystem Sciences, Tokyo 156-8550, Japan
Masayoshi Nakawo, Research Institute for Humanity and Nature, Kyoto 602-0878, Japan
Session: Climate, Humans and the Environment in Asia
Sub-Theme: East Asian Monsoon
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