Environmental variation in central Tibetan Plateau in the last 200 years |
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Authors: | Wu Yanhong Wang Sumin Xia Weilan Zhu Yuxin Yin Yu |
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Affiliation: | 1.Lake Sedimentation and Environment Open Laboratory, Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing,China |
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Abstract: | Through the analyses on sediment lithology,210Pb and137Cs dating, carbonate content, Sr/Ca and Mg/Ca of Ostrocod, and carbon and oxygen stable isotope of carbonate of gravity core from Cuoe Lake in the Naqu area, Tibetan Plateau, the paleolimnology was studied to investigate the environmental variation in the central Tibetan Plateau in the last 200 years. It is inferred that the environmental variation has undergone two stages. The climate was arid in the early 100 years, while it became warmer and more humid in the later 100 years, with a period of 20 years for humidity change. |
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