img

官方微信

img

群号:冰川冻土交流群

QQ群:218834310

高级检索

冰川冻土 ›› 1995, Vol. 17 ›› Issue (3): 247-249.

• 研究论文 • 上一篇    下一篇

全新世大暖期若尔盖的植被与气候

刘光秀1, 沈永平1, 王苏民2   

  1. 1. 中国科学院兰州冰川冻土研究所, 730000;
    2. 中国科学院南京地理与湖泊研究所, 210008
  • 收稿日期:1994-05-16 修回日期:1994-10-10 出版日期:1995-08-25 发布日期:2012-04-26
  • 基金资助:
    国家自然科学基金

The Vegetation and Climate of Holocene Megathermal in Zoige, Northwestern Sichuan,China

Liu Guangxiu1, Shen Yongping1, Wang Suming2   

  1. 1. Lanzhou Institute of Glaciology and Geoctyology, Chinese Academy of Sciences, 730000;
    2. Nanjing Institute of Geography and Lakes, Chinese Academy of Sciences, Nanjing, 210008
  • Received:1994-05-16 Revised:1994-10-10 Online:1995-08-25 Published:2012-04-26

摘要: 本文通过对若尔盖黑河牧场DC剖面系统的孢粉分析,结合14C测年,提出该区全新世大暖期发生于9-3kaBP,当时的植被为针阔叶混交林,气候温湿。大约在7-6kaBP间,植被中落叶阔叶树种增加,代表了全新世界大暖期的鼎盛期,约6-5kaBP,植被稀疏,反映此间有一次气温变冷的波动。

关键词: 植被, 气候, 全新世大暖期, 若尔盖

Abstract: Acccording to pollen record and 14C-dating in Zoige,located in the northeastern part ofthe Tibetan Plateau,this paper suggests that the Holocene megathermal took place about 9-3ka BP,when vegetation was coniferous and deciduous broad-leaf mixed forest,showing,awarmer and wetter climate in this region。About 7-6ka BP,Quercus,and Betula increaseaand Rhus occurred in the forest indicaing the Maximum of Holocene Megaterinal.The ab-sence of pollen about 6-5ka BP,represented a cooeing change in climate.

Key words: vegetation, climate, Holocene megathermal, Zoige