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JOURNAL OF DESERT RESEARCH ›› 2017, Vol. 37 ›› Issue (2): 372-383.DOI: 10.7522/j.issn.1000-694X.2015.00198

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Tree-ring Based Streamflow Reconstruction for the Qushian River of Yellow River Source Region from 1505 to 2010

Xiao Dingmu1,2,3, Qin Ningsheng1,4, Huang Xiaomei1   

  1. 1. Sichuan Province Key Laboratory of Heavy Rain and Drought-Flood Disasters in Plateau and Basin, Institute of Plateau Meteorology, China Meteorological Administration, Chengdu 610072, China;
    2. Plateau Atmosphere and Envonment Key Laboratory of Sichuan Province, Chengdu University of Information Technology, Chengdu 610225, China;
    3. Sichuan Provincial Meteorological Observatory, Chengdu 610072, China;
    4. Sichuan Provincial Climate Centre, Chengdu 610072, China
  • Received:2015-06-09 Revised:2015-09-06 Online:2017-03-20 Published:2017-03-20

Abstract: Tree-ring width STD chronology was created by Sabina przewalskii which was collected in Xueshan Township of Qinghai Province. Statistical analysis showed that the chronology was highly correlated with instrumental streamflow records from previous November to current June from the Damitan hydrological Station, with a correlation coefficient of 0.62. Streamflow of the Qushian River was reconstructed for the past 506 years. It was verified that the reconstructed series was reliable by verification statistics. The relatively low streamflow periods were 1510-1520, 1530-1541, 1544-1586, 1590-1654, 1698-1720, 1728-1745, 1817-1836, 1856-1886, 1917-1932, 1993-2004, and the relatively high streamflow periods were 1655-1697, 1746-1816, 1898-1916, 1933-1957, 1962-1992. The trends of reconstructed sequence in this study and the reconstructed precipitation series in Delingha, Tibetan Plateau and streamflow reconstruction series for the Upper Yellow River were highly correlated in common years. In addition, the reliability of this reconstructed sequence could be confirmed by some documents and historical records. Multi-taper spectral analysis suggests the existence of significant periods of 2-2.7, 3, 3.1-3.4, and 85-256 years. The period of 2-2.7, 3 and 3.1-3.4 years may be related to ENSO variability. Moreover, the reconstructed series have a relationship with Atlantic Multidecadal Oscillation and South Asian summer monsoon.

Key words: tree-ring, source region of Yellow River, reconstruction, streamflow

CLC Number: