X 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 ›› 2016, Vol. 38 ›› Issue (2): 368-378.doi: 10.7522/j.issn.1000-0240.2016.0040

• 冰冻圈与全球变化 • 上一篇    下一篇

青藏高原全新世1月和7月气温序列重建

王青波1, 侯光良2, 李凡1, 杨阳1   

  1. 1. 青海师范大学 生命与地理科学学院, 青海 西宁 810008;
    2. 青海师范大学 青海省自然地理与环境过程重点实验室, 青海 西宁 810008
  • 收稿日期:2015-09-20 修回日期:2016-02-23 出版日期:2016-04-25 发布日期:2016-07-13
  • 通讯作者: 侯光良,E-mail:hgl20@163.com E-mail:hgl20@163.com
  • 作者简介:王青波(1990-),男,河南商丘人,现为青海师范大学在读硕士研究生,主要从事环境演变与人类活动研究.E-mail:13209714513@163.com
  • 基金资助:
    国家自然科学基金项目(41550001)资助

Reconstruction of the January and July temperature sequences of the Tibetan Plateau during the Holocene

WANG Qingbo1, HOU Guangliang2, LI Fan1, YANG Yang1   

  1. 1. School of Life and Geographic Science, Qinghai Normal University, Xining 810008, China;
    2. Physical Geography and Environmental Process Key Laboratory of Qinghai Province, Qinghai Normal University, Xining 810008, China
  • Received:2015-09-20 Revised:2016-02-23 Online:2016-04-25 Published:2016-07-13

摘要: 青藏高原自然环境受人类干扰相对较小,为利用古孢粉记录重建气候因子提供了可能,高原过去气候因子的重建对于预测未来气候变化趋势有重要意义.通过选取的29条高原化石孢粉记录,利用现代类比法和化石孢粉点与高原气温的函数关系,把化石孢粉点古气温转化为青藏高原古气温,重建了高原全新世1月和7月古气温序列.结果表明:对于1月和7月气温而言,全新世早期(11.5~8.5 ka BP)为气温波动上升期;全新世中期(8.5~4.6 ka BP)为全新世大暖期,气温整体高于现代;全新世晚期(4.6 ka BP~至今)又可分为两个阶段,一个是4.6~2.4 ka BP,在此阶段1月和7月气温都有减小的趋势,另一个阶段则是2.4 ka BP至今,气温出现反常的趋势.

关键词: 青藏高原, 全新世, 化石孢粉, 现代类比法

Abstract: The human's interference on the natural environment in the Tibetan Plateau is relatively small, which provides a possible for reconstructing the climate factors by using the ancient sporo-pollen record. The reconstruction of climate factors on the plateau in the past has important significance for predicting future climate variation. In this article, 29 fossil sporo-pollen records on the plateau were selected to transform into the ancient temperature records and reconstructed the January and July temperature sequences of the Tibetan Plateau during the Holocene by using modern analogy method and the function relation between of the fossil sporo-pollen sites and holistic plateau temperature. The reconstructed results show that in terms of January and July temperature, the early Holocene(11.5~8.5 ka BP)was a period of temperature rising undulately;the mid-Holocene(8.5~4.6 ka BP)was megathermal, with temperature warmer than that in present;the late Holocene(4.6 ka BP~)can be divided into two stages, one was 4.6~2.4 ka BP, when the January and July temperatures had decreased;another one was from 2.4 ka BP to now, when temperature has been abnormal.

Key words: Tibetan Plateau, Holocene, fossil pollen, modern analogy method

中图分类号: 

  • P467