Climate Change and Its Effects on Runoff of Kaidu River, Xinjiang, China:A Multiple Time-scale Analysis

查看全文 作　　者：XU [1]Jianhua;CHEN [2]Yaning;JI [1]Minhe;LU [1]Feng

机构地区：[1]Key Laboratory of Geographic Information Science, Ministry of Education, Shanghai 200062, China; The Research Center for East-West Cooperation in China, East China Normal University, Shanghai 200062, China;[2]The Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China

出　　处：《Chinese Geographical Science》索引2008年第18卷第4期,共9页

基　　金：Under the auspices of Second-stage Knowledge Innovation Program of Chinese Academy of Sciences (No. KZCX2-XB2-03);the major direction of Knowledge Innovation Program of Chinese Academy of Sciences (No. KZCX2-YW- 127);Shanghai Academic Discipline Project (Human Geography) (No. B410) 摘　　要：This paper applied an integrated method combining grey relation analysis, wavelet analysis and statistical analysis to study climate change and its effects on runoff of the Kaidu River at multi-time scales. Major findings are as follows: 1) Climatic factors were ranked in the order of importance to annual runoff as average annual temperature, average temperature in autumn, average temperature in winter, annual precipitation, precipitation in flood season, average temperature in summer, and average temperature in spring. The average annual temperature and annual precipi- tation were selected as the two representative factors that impact the annual runoff. 2) From the 32-year time scale, the annual runoff and the average annual temperature presented a significantly rising trend, whereas the annual precipita- tion showed little increase over the period of 1957-2002. By changing the time scale from 32-year to 4-year, we ob- served nonlinear trends with increasingly obvious oscillations for annual runoff, average annual temperature, and annual precipitation. 3) The changes of the runoff and the regional climate are closely related, indicating that the runoff change is the result of the regional climate changes. With time scales ranging from 32-year, 16-year, 8-year and to 4-year, there are highly significant linear correlations between the annual runoff and the average annual temperature and the annual precipitation. 关键词：中国新疆河流温度降水非线性趋势

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Climate Change and Its Effects on Runoff of Kaidu River, Xinjiang, China:A Multiple Time-scale Analysis

参考文献(28)

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耦合文献(179)

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