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  • CN 62-1070/P
  • ISSN 1000-694X
  • Bimonthly 1981
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Climate Change in the Southeastern Mu Us Sandy Land in Middle and Late Holocene

  • Yang Fan ,
  • Jin Heling ,
  • Li Xiaoze ,
  • Geng Jianwei ,
  • Liu Bing
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  • 1. Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Institute of Forest and Garden, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi 832000, Xinjiang, China

Received date: 2016-01-18

  Revised date: 2016-03-01

  Online published: 2017-05-20

Abstract

The Mu Us Sandy Land is located at semi-arid region of North China, and it is sensitive to climate changes. The climate change process in the southeastern Mu Us Sandy Land since 7.5 kyr BP was reconstructed based on data of magnetic susceptibility, organic matter, CaCO3, 14C and OSL dating. The variations of the indices suggest environment and climate changes in the Mu Us Sandy Land can be classified into 3 stages. In 7.5-4.6 kyr BP, corresponding to the Holocene Climatic Optimu, the summer monsoon was powerful and the climate is warm and wet. In 4.6-3.3 kyr BP, with frequently alternations of the climate and an abruptly shift at 4.6 kyr BP, the weakening summer monsoon dominated this period. The climate was cold and arid. In 3.3-2.5 kyr BP, the cold and dry climate was dominated. Additionally, five millennial-scale dry events were recorded at 7.0-6.8 kyr BP, 6.6-5.7 kyr BP, 4.6-4.1 kyr BP, 3.7-3.5 kyr BP and 3.3-2.5 kyr BP. In short, the regional climate change is correlated with the global climate change.

Cite this article

Yang Fan , Jin Heling , Li Xiaoze , Geng Jianwei , Liu Bing . Climate Change in the Southeastern Mu Us Sandy Land in Middle and Late Holocene[J]. Journal of Desert Research, 2017 , 37(3) : 431 -438 . DOI: 10.7522/j.issn.1000-694X.2016.00024

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