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Chinese Science Bulletin

, Volume 49, Issue 4, pp 405–409 | Cite as

Reconstruction of May–July precipitation in the north Helan Mountain, Inner Mongolia since A.D. 1726 from tree-ring late-wood widths

  • Yu Liu
  • Jiangfeng Shi
  • V. Shishov
  • E. Vaganov
  • Yinke Yang
  • Qiufang Cai
  • Junyan Sun
  • Lei Wang
  • I. Djanseitov
Articles

Abstract

By analyzing statistical characteristics of five tree-ring standard chronologies, early-wood ring width (EWW), late-wood ring width (LWW), total ring width (TRW), minimum early-wood density (MinD), maximum late-wood density (MaxD) and, their climatic response respectively, we reconstructed the May to July precipitation using late-wood ring width (LWW) over the north Helan Mountain since A.D. 1726. The explained variance is 42% (R2adj = 41%,F= 31.46,p < 0.000001). After 11-a moving average, the explained variance reaches 82% (F= 156.9,p < 0.05). On the decadal scale, the rainfall reconstruction of the northern Helan Mountain displays a quite similar variation pattern with that of the April to early July precipitation in Baiyinaobao, east of Inner Mongolia for the last 150 years. It may reflect the intensity variation of the East Asia Summer Monsoon front to a certain extent. Spectrum analysis shows 11-a and 22-a periodicities in the May to July precipitation reconstruction at the north Helan Mountain.

Keywords

Helan Mountain pinus tabulaeformis late-wood ring width precipitation reconstruction 

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Copyright information

© Science in China Press 2004

Authors and Affiliations

  • Yu Liu
    • 1
  • Jiangfeng Shi
    • 1
  • V. Shishov
    • 2
  • E. Vaganov
    • 2
  • Yinke Yang
    • 1
  • Qiufang Cai
    • 1
  • Junyan Sun
    • 1
  • Lei Wang
    • 1
  • I. Djanseitov
    • 2
  1. 1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth EnvironmentChinese Academy of SciencesXi’anChina
  2. 2.Sukachev Institute of ForestRussian Academy of SciencesKrasnoyarskRussia

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