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中国沙漠 ›› 1992, Vol. 12 ›› Issue (1): 1-8.

• 论文 •    下一篇

北疆干旱区500年来环境演变序列

韩淑媞1, 王承义2, 袁玉江2   

  1. 1. 新疆大学地理系, 乌鲁木齐;
    2. 新疆气象局气象科学研究所
  • 出版日期:1992-03-20 发布日期:1992-03-20

Environmental Deuelopment Succession of Northern Xinjiang in the Last 500 Years

Han shuti1, Wang Chenyi2, Yuan Yujian2   

  1. 1. Department of geography, Xinjiang University;
    2. Xinjiang Meteorological Bereau
  • Online:1992-03-20 Published:1992-03-20

摘要: 笔者选用巴里坤湖湖滨浅滩60 cm深的剖面,进行了综合分析,并结合210Pb测年和树木年轮年代学研究,获得了沉积地层、生物地层、地球化学元素与冰川进退、湖面波动近于一致的相关变化,反映了湖积层中物理、生物、化学过程的相互作用,是500年来气候与环境演变序列的最好见证。北疆500年来经历了三个冷湿期,四个暖干期的变化过程。三次冷湿期主要出现在1560-1660年,1735-1815年和1862-1960年,并与500年来全球变化相吻合。

关键词: 北疆, 环境演变, 500年序列

Abstract: Combining with 210Pb chronologies and tree-ring chronology.We made a comprehensive analysis with shallow cross-sections of 60cm depth in Balikun lakeside.We obtained about the unanimous correlated variations of deposit-strata,biological strata,geochemical elements,advance and retreat of glaciers and fluctuation of lake surface,which is a reflection of physical,biological and chemical processes in lake depositstrata.During the last 500 years,Northern Xinjiang experienced 3 cold and moisture periods,4 warm and dry periods.The three cold and moisture periods(1560-1660A.D,1735-1815A.D,1862-1960A.D) coincided with those of the global in the last 500 years.