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JOURNAL OF DESERT RESEARCH ›› 2016, Vol. 36 ›› Issue (6): 1555-1563.DOI: 10.7522/j.issn.1000-694X.2015.00276

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Reconstruction of Precipitation during 1794-2012 from Tree-Rings in the Altay Prefecture

Niu Junqiang1,2, Yuan Yujiang1, Chen Feng1, Zhang Ruibo1, Shang Huaming1, Zhang Tongwen1, Yu Shulong1, Jiang Shengxia1, Qin Li1, Fan Ziang1   

  1. 1. Key Laboratory of Tree-ring Physical and Chemical Research of China Meteorological Administration;Xinjiang Laboratory of Tree Ring Ecology, Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China;
    2. College of Geography and Tourism, Xinjiang Normal University, Urumqi 830054, China
  • Received:2015-11-19 Revised:2015-12-04 Online:2016-11-20 Published:2016-11-20

Abstract: Picea obovata Tree-ring chronologies at three sites were developed for from the Altay Prefecture, and then a regional tree-ring width chronology was established. Single correlation census shows that the correlation between the regional tree-ring chronology and precipitation from previous July to current June is significant with the best single correlation coefficient of 0.714 (P<0.00001). From the regional tree-ring standard chronology, precipitation in the Altay Prefecture from previous July to current June can be reconstructed. With an explanation variance of 51.0%, verifications have shown that the reconstructed precipitation series was reliable. The reconstructed precipitation series have 4 wet periods and 4 dry periods. There were significant change periods of 2.2-2.5 a (P<0.05) and 146, 2.8, 2.1, and 2.0 a (P<0.01). The reconstructed precipitation had an abrupt change in 1889 from less to more. The reconstructed precipitation series is well representational to precipitation in the Altay Prefecture, and its precipitation change trend and dry/wet periods were consistent with reconstructed precipitation series in Altay Mountains, the middle Tianshan Mountains, the northern slope of the Tianshan Mountains in eastern Kyrgyzstan and PDSI series.

Key words: Altay Prefecture, Picea obovata, standardization width chronology, precipitation reconstruction

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