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JOURNAL OF DESERT RESEARCH ›› 2016, Vol. 36 ›› Issue (3): 604-609.DOI: 10.7522/j.issn.1000-694X.2015.00220

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The Stable Isotope Background Values of the Major Source Regions of Dust Storms in China

Du Hongyin1, Guo Hao1, Cui Xianghui1, Lu Xia2, Xin Zhiming3   

  1. 1. Desertification Research Institute, Chinese Academy of Forestry, Beijing 100091, China;
    2. College of Landscape and Art, Jiangxi Agricultural University, Nanchang 330045, China;
    3. Experimental Center of Desert Forestry, Chinese Academy of Forestry, Dengkou 015200, Inner Mongolia, China
  • Received:2015-07-31 Revised:2015-09-26 Online:2016-05-20 Published:2016-05-20

Abstract: By using stable isopote analysis method, we research the stable isotope background values of samples of Taklimakan Desert, Qaidam Basin Desert, Kumtagh Desert, Tengger Desert, Ulan Buh Desert, Mu Us Sandy Land which are the major dust storm source regions in China. The results show that the δ values of 18O and 30Si of 22 samples range at 9.6-14.8 and -1.7-0.3, respectively. The δ value of 18O from is the maximum in the Kumtagh Desert, and it is the minimum in the Qaidam Basin Desert. The δ value of 30Si value is maximum in the Mu Us Sandy Land, and is minimum in the Qaidam Basin Desert. Overall, the variation coefficients of δ value of 30Si are greater than the variation coefficient of δ values of 18O. So, 30Si is more suitable for dust storm source research. Furthermore, the adjacent deserts showed a similar trend of 30Si. Therefore, it is inferred that the sediments of adjacent deserts may come from the same area.

Key words: dust storm, stable isotope, trace ability, background value

CLC Number: