| MODERN CLIMATIC SIGNALS DEDUCED FROM STABLE ISOTOPE IN SHELLS IN XINGCUO LAKE SEDIMENTS,EAST TIBETAN PLATEAU,CHINA |
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| 作者姓名： | WU Jing-lu YU Hong ANDREAS Luecke WANG Su-min |
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| 作者单位： | 1.Nanjing Institute of Geography and Limnology，the Chinese Academy of S ciences，Nanjing 210008，P.R.China;2.Department of Atmospheric Observ ing Engineering，Institute of Mete |
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| 基金项目： | FoundationitemUndertheauspicesoftheNationalNaturalScienceFoundationofChinaNo49803001theKeyInnovationProjectofChineseAcademyofSciencesKZCX11002National‘973’ProjectandCASTibetResearchNoG1998040810. |
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| 摘 要： | Ｉｔｉｓｏｎｅｏｆｔｈｅｆｒｏｎｔｉｅｒｆｏｃｕｓｅｓｉｎｔｈｅｆｉｅｌｄｏｆｇｌｏｂｌｅｅｎｖｉｒｏｎｍｅｎｔａｌｃｈａｎｇｅｓｔｏｅｘｔｒａｃｔｑｕａｎｔｉｔａｔｉｖｅｌｙｐａｓｔｃｌｉｍａｔｉｃｓｉｇｎａｌｓｆｒｏｍｌａｋｅｓｅｄｉｍｅｎｔｒｅｃｏｒｄｓ．Ｉｎｔｈｅｒｅ-ｃｅｎｔｄｅｃａｄｃｉｏｕｓｙｅａｒｓａｓｅｒｉｅｓｏｆａｃｈｉｅｖｅｍｅｎｔｓｏｎｒｅ-ｂｕｉｌｄｉｎｇｔｈｅｓｅｑｕｅｎｃｅｓｏｆｃｌｉｍａｔｉｃａｎｄｅｎｖｉｒｏｎｍｅｎｔａｌｅｖｏｌｕｔｉｏｎｓａｔｖａｒｉｏｕｓｓ…
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| 关 键 词： | Xingcuo Lake δ13 C δ 18 O proxies climatic signals eastern Tibetan Plateau |
| 收稿时间： | 29 March 2001 |
Modern climatic signals deduced from stable isotope in shells in Xingcuo Lake sediments, east Tibetan Plateau, China |
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| WU Jing-lu ,YU Hong ,ANDREAS Luecke ,WANG Su-min .MODERN CLIMATIC SIGNALS DEDUCED FROM STABLE ISOTOPE IN SHELLS IN XINGCUO LAKE SEDIMENTS,EAST TIBETAN PLATEAU,CHINA[J].Chinese Geographical Science,2001,11(3):246-251. |
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| Authors: | Jing-lu Wu Hong Yu Luecke Andreas Su-min Wang |
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| Institution: | (1) Nanjing Institute of Geography and Limnology, the Chinese Academy of Sciences, 210008 Nanjing, P.R. China;(2) Department of Atmospheric Observing Engineering, Institute of Meterology, PLA University of Science and Technology, 211101 Nanjing;(3) Forschungszentrum Juelich, ICG-4, D-52425 Juelich, Germany |
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| Abstract: | Xingcuo lake, a closed one, is situated in eastern Tibetan Plateau. There are abundant snail shells Gyraulus sibirica in its sediments. Here we display the determining results of δ13C, δ18O in shell Gyraulus sibirica continuously preserved in Xincuo Lake sediments in the recent 50 years. And by coupling the indexes of δ13C, δ18O and instrumental meteorological data in its basin to build relative function relations among them, we probe quantitatively
climatic signals recorded in those indexes. The results show that there are remarkable relations between δ13C proxy and precipitation, δ18O proxy and air temperature, of which correlative coefficient was 0.89 and 0.71, respectively. Besides, we also demonstrated
that average variation between δ13C proxy and precipitation (dδ13C/dP) was 0.027‰/mm and 1.64‰/°C for δ18O and air temperature (dδ18O/dT).
Foundation item: Under the auspices of the National Natural Science Foundation of China (No: 49803001); the Key Innovation
Project of Chinese Academy of Sciences (KZCX1-10-02); National ‘973’ Project and CAS Tibet Research (No: G1998040810).
Biography: WU Jing-lu(1965 –), male, a native of Zhejiang Province, Ph. D.. His research interest includes isotope geochemistry. |
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| Keywords: | Xingcuo Lake δ 13C δ 18O proxies climatic signals eastern Tibetan Plateau |
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