THE SEQUENCE OF PALEOENVIRONMENTAL CHANGES SINCE ABOUT 4KA B.P., RECORDED BY NIYA SECTION IN SOUTHERN MARGIN OF TARIM BASIN

1 INTRODUCTIONOne of the 7 key plans of IGBP (International Geo-Biosphere Project) is the PAGES (Past Global Changes), of which the relation of mutual influence of mankind and natural environmental changes during historic period has attracted great attentions over the world (CHEN,1992; Committee of National Natural Science Foundation of China, 1995). Due to the atrocious natural conditions, study of this issues are much more backward in southern Xinjiang. So to investigate and…

The sequence of paleoenvironmental changes since about 4ka B. P., recorded by Niya section in southern margin of Tarim Basin

Through synthetic researches of multi-index geological records of Niya section, which are of high resolution in southern margin of Tarim Basin, this paper has reconstructed the sequences of paleoclimate in this region during historical times (since about 4000a B. P.). During the last 4000 years, the area has experienced alternations of relative cold-moisture and relative warm-dry periods. Three evident cold-moisture periods and three warm-dry periods are identifing. The study shows that the human activities have an intimate relation with the evolution of paleoclimate in the southern Xinjiang. Paleoclimate has played very important role in influencing human being’s agricultural activities. Foundation Item: Great Base Project of National Natural Science Foundation of China (No. 49761007 and 49861005); International Science Research Assistance Foundation in Japan (basic research (A) (2), No. 10041086); Key member of college teacher supported project of China Education Ministry. Biography: ZHONG Wei (1967 —), male, a native of Xinjiang, Ph. D., professor. His research interests include paleoenvironmental changes and physical geography. E-mail: zhweixxjj@263.net