SCIENTIA GEOGRAPHICA SINICA ›› 1995, Vol. 15 ›› Issue (1): 39-46,99.doi: 10.13249/j.cnki.sgs.1995.01.39

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CHARACTERS OF THE EVOLUTION OF CLIMATE ANDENVIRONMENT DURING THE LAST 10ka YEARSIN AIBI LAKE BASIN, XINJIANG

Wu Jinglu   

  1. Nanjing Institute of Geography and Limnology, Academia Sinica, Nanjing, 210008
  • Received:1993-02-01 Online:1995-01-20 Published:1995-01-20

Abstract: On the basis c’f lacustrine sedimentary profile of Aibi Lake, sequences of evolution of paleoclimate and paleoenvironment in Aibi Lake area have been rebuilt by analysing the sedimentary stratigraphy, bio-stratigraphy and geochemistry as well as the chronological records.The results show that, during the last 10ka years, the general change trends of the paleoclimate in Aibi Lake area can be divided into three stages;(1)10.2ka-8.3kaB.P., a warm-cool dry climate stage; (2)8.3ka-3.5kaB.P., a warmer moist climate stage (specially, 7.3ka-6.4kaB.P.,a relatively stable humid temperate stage); (3) 3.5kaB.P.-present, a draught temperate climate stage, similar to the present climate.In addition, there existed clearly several times of secondary undulations of dry-humid climate,i.e.8.3ka and 7.3ka for dry climate.