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Abrupt Changes of Runoff and Sediment Load in the Lower Reaches of the Yellow River, China
Cui, BL (Cui, Bu-Li)[ 1 ]; Chang, XL (Chang, Xue-Li)[ 2 ]; Shi, WY (Shi, Wei-Yu)[ 1 ]
2014-05-15
Source PublicationWATER RESOURCES
Volume41Issue:3Pages:252-260
Subtype期刊论文
Abstract

Determining abrupt changes in runoff and sediment load may not only enhance identification of the principal driving factors for such changes but also help establish effective countermeasures for serious water deficit by managers in the Yellow River basin. We used the Mann-Kendall trend test and linear regression to determine trends and abrupt changes of runoff and sediment load during the period between 1950 and 2005, based on monthly hydrological data. Results show that runoff and sediment load decreased from 1950 to 2005, on annual or monthly time scales. Their changes are divided into three stages: fluctuating stage (1950-1970), slowly decreasing stage (1970-1980) and accelerated decreasing stage (1980-2005). The relationship between runoff and sediment load was most significant, and it can be expressed as a linear regression function. Precipitation was one of the most important climate factors affecting runoff before 1985, and the impact of human activities on runoff decrease grew strongly after 1985. Water balance analysis of the Yellow River basin indicates that natural climate change contributed about 55.3% and human activities about 44.7% to the runoff decrease after 1986.

KeywordRunoff Sediment Load Mann–kendall Trend Test Yellow River
DOI10.1134/S009780781403004X
Indexed BySCIE
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9697
Collection生态环境研究室
Corresponding AuthorCui, BL (Cui, Bu-Li)[ 1 ]
Affiliation1.Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, 710075 P.R. China;
2.Ludong University, Yantai, 264025 China
Recommended Citation
GB/T 7714
Cui, BL ,Chang, XL ,Shi, WY . Abrupt Changes of Runoff and Sediment Load in the Lower Reaches of the Yellow River, China[J]. WATER RESOURCES,2014,41(3):252-260.
APA Cui, BL ,Chang, XL ,&Shi, WY .(2014).Abrupt Changes of Runoff and Sediment Load in the Lower Reaches of the Yellow River, China.WATER RESOURCES,41(3),252-260.
MLA Cui, BL ,et al."Abrupt Changes of Runoff and Sediment Load in the Lower Reaches of the Yellow River, China".WATER RESOURCES 41.3(2014):252-260.
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