Evolution of vegetation and climate variability on the Tibetan Plateau over the past 1.74 million years
文献类型:期刊论文
作者 | Zhao, Yan; Tzedakis, Polychronis C.; Li, Quan; Qin, Feng; Cui, Qiaoyu; Liang, Chen; Birks, H. John B.; Liu, Yaoliang; Zhang, Zhiyong; Ge, Junyi |
刊名 | SCIENCE ADVANCES |
出版日期 | 2020-05 |
卷号 | 6期号:19 |
ISSN号 | 2375-2548 |
DOI | 10.1126/sciadv.aay6193 |
英文摘要 | The Tibetan Plateau exerts a major influence on Asian climate, but its long-term environmental history remains largely unknown. We present a detailed record of vegetation and climate changes over the past 1.74 million years in a lake sediment core from the Zoige Basin, eastern Tibetan Plateau. Results show three intervals with different orbital- and millennial-scale features superimposed on a stepwise long-term cooling trend. The interval of 1.74-1.54 million years ago is characterized by an insolation-dominated mode with strong similar to 20,000-year cyclicity and quasi-absent millennial-scale signal. The interval of 1.54-0.62 million years ago represents a transitional insolation-ice mode marked by similar to 20,000- and similar to 40,000-year cycles, with superimposed millennial-scale oscillations. The past 620,000 years are characterized by an ice-driven mode with 100,000-year cyclicity and less frequent millennial-scale variability. A pronounced transition occurred 620,000 years ago, as glacial cycles intensified. These new findings reveal how the interaction of low-latitude insolation and high-latitude ice-volume forcing shaped the evolution of the Tibetan Plateau climate. |
源URL | [http://ir.isl.ac.cn/handle/363002/33974] |
专题 | 青海盐湖研究所_盐湖地质与环境实验室 中国科学院青海盐湖研究所 |
推荐引用方式 GB/T 7714 | Zhao, Yan,Tzedakis, Polychronis C.,Li, Quan,et al. Evolution of vegetation and climate variability on the Tibetan Plateau over the past 1.74 million years[J]. SCIENCE ADVANCES,2020,6(19). |
APA | Zhao, Yan.,Tzedakis, Polychronis C..,Li, Quan.,Qin, Feng.,Cui, Qiaoyu.,...&Guo, Zhengtang.(2020).Evolution of vegetation and climate variability on the Tibetan Plateau over the past 1.74 million years.SCIENCE ADVANCES,6(19). |
MLA | Zhao, Yan,et al."Evolution of vegetation and climate variability on the Tibetan Plateau over the past 1.74 million years".SCIENCE ADVANCES 6.19(2020). |
入库方式: OAI收割
来源:青海盐湖研究所
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