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中国沙漠 ›› 1992, Vol. 11 ›› Issue (2): 33-38.

• 论文 • 上一篇    下一篇

内蒙锡盟桑根达来3600年来的植被及环境演变

梁玉莲1,2   

  1. 1. 中国科学院地理研究所;
    2. 国家计委地理研究所
  • 出版日期:1991-06-20 发布日期:1991-06-20

Vegetation and Environment Changes Since 3600B. P. in Sanggendalai Region of Inner Mongolia

Liang Yulian1,2   

  1. Institute of Geography, Academia Sinica
  • Online:1991-06-20 Published:1991-06-20

摘要: 根据孢粉组合特征, 3600年以来一直是以蒿属植物占优势的稀树草原景观。距今3600年时温度高出现今2C, 此后, 温度和湿度不断下降。距今1400年以来温度稍有回升, 但湿度一直在减少, 干旱程度不断加剧。

关键词: 桑根达来, 孢粉组合, 古植被, 古气候

Abstract: Pollen assemblages analysis of Sanggendalai region in Inner Mongolia has revealed that since 3600B.P. this region has a sparse tree-steppe landscape, dominated by Artimisia. The temperature might be 2C higher than that of the present. Later, the temperature and humidity continuously decreased. The temperature had a little increase and the humidity decreased since 1400 B.P. This shows that the aridity has increased.