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MIS3a Palaeoenvironment History Recorded by Pollen of Tramplin Section in Kazakhstan

Huang Changqing1,2,3, Liu Kambiu2, Feng Zhaodong4, Ran Min1, Yang Qili1, Zhang Xiaosen1   

  1. 1.MOE Key Laboratory of Western Environmental Systems, Lanzhou University, Lanzhou730000, China;
    2. Department of Oceanography and Coastal Sciences, School of the Coast and Environment, Louisiana State University, 1002Y Energy, Coast and Environment Building, Baton Rouge, LA 70803, USA;
    3.Raw and Political Department,Tongren University,Tongren554300,Guizhou,China;
    4.MOE Key Laboratory of Oasis Ecology, Central Asian EcologyEnvironmentEvolution Research College of Xinjiang University, Urumqi830046, Xinjiang, China
  • Received:2012-05-06 Online:2013-01-26 Published:2013-01-26

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Abstract:

Based on AMS 14C age data, a pollen record from Tramplin section which is Loess-paleosol deposition in south Kazakhstan is analyzed. It displays vegetation and climate history in central Asia in MIS3a stage as below: before 41.4 14C ka B.P.，Vegetation was Artermisia desert-steppe and climate was dry; 41.4-40 14C ka B.P.，Vegetation was Artermisia steppe and climate turned to be wetter slightly; 40-36 14C ka B.P.，Vegetation was Artermisia desertsteppe and climate was dry; 36-33 14C ka B.P.，Vegetation was Artermisia steppe and climate turned to be wetter slightly; 33-30 14C ka B.P.，Vegetation was Artermisia desertsteppe and climate turned to be drier slightly; 30-28 14C ka B.P.，Vegetation was Artermisia steppe and climate turned to be wetter slightly.

Key words: Central Asia arid zone, marine isotope stage 3a, pollen, climate change, vegetation

CLC Number: 

  • X173
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