There is a sharp decline in runoff and available water resources in North China in recent years. Not only the causes, but also the magnitudes, especially of the dwindling runoff remain largely unclear. Hence the Ye Rive Basin, a typical mountain watershed in North China, is used in this study to determine: (1) the trend of precipitation and runoff via a Mann–Kendall test; (2) the period of drastic runoff decline via a sequential Mann–Kendall test and (3) the driving factors of runoff decline via (i) runoff comparisons for dry and wet years with similar precipitation events, and (ii) regression comparisons on precipitation and runoff for the pre- and post-development periods. Analysis of 40 years (1960–1999) of data shows a significant decline in annual runoff, whereas annual precipitation remains relatively stable. In the basin, runoff decline started in 1974, and became drastic in 1978. Furthermore, runoff analysis for typical dry and wet years, and regression comparisons, indicate that human activity is the main driving factor of runoff decline in the basin. Agricultural water use is the dominant cause of the drastic hydrological changes in the study area.
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Research Article|
June 01 2010
Determination of the period of major runoff decline and related driving factors in Ye River Basin, North China
Fei Tian;
Fei Tian
1College of Resources Science & Technology, Beijing Normal University, No.19, Xinjiekouwai Street, Haidian District, Beijing 100875, China
2Key Laboratory of Agricultural Water Resources, Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 286 Huaizhong Road, Shijiazhuang 050021, China
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Yonghui Yang;
2Key Laboratory of Agricultural Water Resources, Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 286 Huaizhong Road, Shijiazhuang 050021, China
Tel.: +86 311 8581 4368 Fax: +86 311 8581 5093; E-mail: [email protected]
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Shumin Han;
Shumin Han
2Key Laboratory of Agricultural Water Resources, Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 286 Huaizhong Road, Shijiazhuang 050021, China
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Juana P. Moiwo;
Juana P. Moiwo
2Key Laboratory of Agricultural Water Resources, Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 286 Huaizhong Road, Shijiazhuang 050021, China
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Guoyu Qiu
Guoyu Qiu
3School of Environment and Energy, Shenzhen Graduate School, Peking University, Shenzhen 518055, China
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Journal of Water and Climate Change (2010) 1 (2): 154–163.
Article history
Received:
December 25 2009
Accepted:
June 09 2010
Citation
Fei Tian, Yonghui Yang, Shumin Han, Juana P. Moiwo, Guoyu Qiu; Determination of the period of major runoff decline and related driving factors in Ye River Basin, North China. Journal of Water and Climate Change 1 June 2010; 1 (2): 154–163. doi: https://doi.org/10.2166/wcc.2010.001
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