[1]ZHANG Ru,ZHANG Zhiquan,LUO Kai.Study on the Temporal-Spatial Variation of Sediment Transport Function in the Lower Reaches of the Yellow River and Its Influencing Factors in Recent Years[J].Research of Soil and Water Conservation,2022,29(04):95-99.
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Study on the Temporal-Spatial Variation of Sediment Transport Function in the Lower Reaches of the Yellow River and Its Influencing Factors in Recent Years
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 04
Page number:
95-99
Column:
Public date:
2022-06-20
- Title:
- Study on the Temporal-Spatial Variation of Sediment Transport Function in the Lower Reaches of the Yellow River and Its Influencing Factors in Recent Years
- Keywords:
- lower reaches of the Yellow River; sediment transport function; riverbed armoring; soil and water conservation
- CLC:
- P333.4
- DOI:
- -
- Abstract:
- The sediment transport function of the lower reaches of the Yellow River is disturbed by natural and anthropogenic factors, which has the profound influences on the sediment flux of the Yellow River into the sea. To investigate the evolution of the sediment transport function of the lower reaches of the Yellow River and its effect factors in recent years, based on the measured data of runoff, sediment, precipitation, water-soil conservation and water-sediment diversion from 2007 to 2020, the annual sediment transport function was calculated and its dominant factors were discussed. The results show that the sediment transport function index of the lower reaches of the Yellow River decreased by 57% from 2007 to 2020, and the sediment transport function index of Huayuankou—Gaocun section and its decline rate were higher than those of Gaocun—Aishan and Aishan—Lijin sections; moreover, the main reasons for the evolution of the sediment transport function in the lower reaches of the Yellow River were the riverbed armoring, soil-water conservation, and water diversion, which contributed 37.6%, 21.6%, and 17.5% to the changes of sediment transport function, respectively. The riverbed armoring and the increase in water diversion had weakened the sediment transport function, while the increase in soil and water conservation had the opposite enhancement effect. The sediment transport function of the lower Yellow River has been degraded in recent years under the combined effects of the three dominant factors.
- References:
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Last Update:
2022-06-20