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冰川冻土 ›› 1998, Vol. 20 ›› Issue (1): 21-24.

• 研究论文 • 上一篇    下一篇

西昆仑山甜水海24万年以来生态环境演化的孢粉学证据

刘光秀1, 王睿1, 李世杰1, 李炳元2, 朱照宇3   

  1. 1. 中国科学院兰州冰川冻土研究所, 兰州730000;
    2. 中国科学院、国家计划委员会地理研究所, 北京100101;
    3. 中国科学院广州地球化学研究所, 广州510640
  • 收稿日期:1996-12-04 出版日期:1998-02-25 发布日期:2012-04-26
  • 基金资助:
    国家"八五"攀登计划青藏项目(85-29-02).

Palynological Evidence of Ecological Environment Change Since 240 ka BP for the Tianshuihai Lake, West Kunlun Mountains

LIU Guang-Xiu1, WANG Rui1, LI Shi-Jie1, LI Bing-Yuan2, ZHU Zhao-Yu3   

  1. 1. Lanzhou Institute of Glaciology and Geocryology, CAS, Lanzhou 730000;
    2. Institute of Geography, CSA, Beijing 100101;
    3. Guangzhou Institute of Geochemistry, CAS, Guangzhou 510640
  • Received:1996-12-04 Online:1998-02-25 Published:2012-04-26

摘要: 西昆仑山甜水海深56.32m的钻孔岩芯孢粉记录表明,本地区240kaBP以来,高寒荒漠植被一直占主导地位,但其间有草原成分蒿增加的若干波动,它反映了寒冷干旱气候背景下的湿润温和波动,亦反映了生态环境的脆弱性。依据钻孔孢粉组合特征及蒿藜比值变化划分出的10个带,代表了气候环境的10次波动。

关键词: 生态环境, 孢粉记录, 甜水海, 西昆仑山

Abstract: Pollen record from a drilling core 56.32 m in depth in the Tianshuihai Lake, West Kunlun Mountains, indicates that alpine desert vegetation is dominant since 240 ka BP in this region, but there are several fluctuations of Artemisia which is main component of steppe, reflecting that there exist several warmer and weter intervals under the cold and dry climate background. According to the changes of pollen kinds and the ratio of Artemisia and Chenopodiaceae (A/C), the pollen record can be divided into 10 zones, showing 10 climatic fluctuations and an ecological environment fragitity in this area.

Key words: ecolgical environment, pollen record, Tianshuihai Lake, West Kunlun Mountains

中图分类号: 

  • Q948.12