[1]LI Bo,MU Xingmin,GAO Peng,et al.New Characteristics of Temporal and Spatial Changes of Runoff in the Mainstream of Yellow River from 1956 to 2017[J].Research of Soil and Water Conservation,2019,26(06):120-126,132.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 06
Page number:
120-126,132
Column:
Public date:
2019-10-17
- Title:
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New Characteristics of Temporal and Spatial Changes of Runoff in the Mainstream of Yellow River from 1956 to 2017
- Author(s):
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LI Bo1, MU Xingmin1,2, GAO Peng1,2, ZHAO Guangju1,2, SUN Wenyi1,2
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1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, CAS & MWR, Yangling, Shaanxi 712100, China
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- Keywords:
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the Yellow River; upper; middle and lower reaches; streamflow; trend analysis; mutation analysis
- CLC:
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P333.3
- DOI:
-
-
- Abstract:
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Runoff is the important resource and basis for the utilization of regional water resources. Based on the data of yearly runoff of nine hydrological stations from 1956 to 2017, in order to explore the new characteristics of spatial and temporal changes of runoff in the Yellow River Basin, we used modern statistical analysis such as Mann-Kendall test, Pettitt mutation test, anomaly accumulation, to reveal the temporal and spatial variation of runoff. The results showed that the runoff of the upper, middle and lower reaches exhibited a significant decreasing trend with its propensity rates of -2.016 billion m3/decade,-3.023 billion m3/decade,-1.698 billion m3/decade, and its critical years are 1986, 1990 (1968), 1976 (2002, 2010); apparent periodicities can be observed in the variation of annual runoff. The runoff discharge shows the significant decreasing trend at main hydrological stations with exception of the Tangnaihai station, the decline level increases along the river from upper to lower reaches. The critical years of annual runoff mainly concentrated in 1985 and 1990 except Tangnaihai station. The distribution characteristics of the average runoff along the nine stations were basically the same, which performed increasing first and then decreasing. The inter-generational variation gradually increased, and the maximum value appeared at Huayuankou station.