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JOURNAL OF NATURAL RESOURCES >

2003 , Vol. 18 >Issue 2: 142 - 147

DOI: https://doi.org/10.11849/zrzyxb.2003.02.003

Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS

Multple time scales analysis and cause of runoff changes of the upper and middle reaches of the Yellow River

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  • 1. Institute of Environmental Sciences, Beijing Normal University, Beijing 100875, China;
    2. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    3. Xi'an University of Technology, Xi'an 710048, China

Received date: 2002-08-29

  Revised date: 2002-12-30

  Online published: 2003-04-25

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Abstract

Because of the influence of climate change and human activities,runoff change has oc-curred.This paper analyzes the natural runoff series of the upper and middle reaches of the Yel-low River with the theory of wavelet transformation,reveals multi-time scale changes rule of runoff,and discusses the influencing factors of runoff multi-time scale changes.The results showed that climatic conditions such as precipitation mainly controlled river runoff variations.But varia-tions in drainage basin underlying surface and local climate factor brought by human activity af-fected natural annual runoff.The results are important to know runoff changes and to exploit wa-ter resources of the upper and middle reaches of the Yellow River.

Key words： Yellow River; runoff changes; multi-time scale; wavelet analysis

Cite this article

JIANG Xiao-hui, LIU Chang-ming, HUANG Qiang . Multple time scales analysis and cause of runoff changes of the upper and middle reaches of the Yellow River[J]. JOURNAL OF NATURAL RESOURCES, 2003 , 18(2) : 142 -147 . DOI: 10.11849/zrzyxb.2003.02.003

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