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《Yellow River》 2015-01
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Analysis on Abrupt Change Points of Kuye River Runoff by Mann- Kendall and Pettitt

LI Shu;LYU Zhifang;Yellow River Institute of Hydraulic Research;College of Hydrology and Water Resources,Hohai University;Shangqiu Surveying and Design Institute of Water Conservancy and Architecture;  
Based on the meteorological and hydrological data collected from the Kuye River,the abrupt change points of the runoff were detected jointly using Mann- Kendall trend test and Pettitt change point test. Meanwhile,Mann- Kendall rank correlation method was employed to perform trend tests on the precipitation and evaporation. The results show that the runoff of the river altered abruptly in 1979 and1996 respectively. That is because of the soil and water conservation measures practiced in early 1980s' and a large scale of coal mining in later 1990s',indicated by the preliminary analyses. Annual precipitation and evaporation exhibit a trend of reduction from 1960s'. Compared with annual evaporation,the decrease speed of the former is slower,and the change tendency of both is not evident.
【Fund】: 黄河水利科学研究院基本科研业务费专项(HKY-JBYW-2013-19);; 2014年度中央高校基本科研业务费专项(2014B34914)
【CateGory Index】: P333
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Chinese Journal Full-text Database 4 Hits
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【Co-citations】
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1 JIANG Mian-feng;YE Chun-ming;QUAN Fu-quan;Business School,University of Shanghai for Science and Technology;School of Environmental Science and Engineering,Shanghai Jiaotong University;;Application of wavelet analysis in air quality of Shanghai[J];信息技术;2016-07
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