Equilibrium relations for water and sediment transport in the Yellow River

2021 ◽  
Vol 36 (2) ◽  
pp. 328-334
Author(s):  
Xujian Chen ◽  
Yuqi An ◽  
Zhihao Zhang ◽  
Chunhong Hu
Keyword(s):  
Sediment Transport ◽  
Yellow River ◽  
The Yellow River ◽  
Water And Sediment

scholarly journals Sediment Variation Characteristics of Major Rivers in the Middle Reaches of the Yellow River

2021 ◽  
Vol 5 (5) ◽  
pp. 20-26
Author(s):  
Yaxi Cai ◽  
Xiaodong Yang
Keyword(s):  
Sequence Analysis ◽  
Sediment Transport ◽  
River Basin ◽  
Yellow River ◽  
The Yellow River ◽  
Sediment Discharge ◽  
Variation Characteristics ◽  
Major River ◽  
Kendall Method ◽  
Hydrological Station

The sediment sequence analysis of Mann-Kendall method based on major rivers of 10 hydrological station in the middle reaches of the Yellow River [1]. The results show that: The main rivers in the middle reaches of the Yellow River hydrologic station sediment overall showed a trend of decreased significantly. Sediment discharge of all stations except Gao Jiachuan station have reached the maximum in 1956-1969s [2-3]. Among various hydrologic station sediment discharge of inter-generational are generally shows the tendency of reducing year by year. Calculate the sediment transport of major river basin of Yellow River, which average is 0.63.

The Analysis on the Effect of Silt Arrester System Construction in Small Watershed Runoff Sediment and the Evaluation of the Ecological Environment

2012 ◽  
Vol 518-523 ◽  
pp. 4782-4785
Author(s):  
An Li Ma ◽  
Bao Ku Yin
Keyword(s):  
Sediment Transport ◽  
Yellow River ◽  
Monitoring And Evaluation ◽  
Shanxi Province ◽  
Ecological Environment ◽  
The Yellow River ◽  
System Construction ◽  
Small Watershed ◽  
Monitoring Method ◽  
Small Watersheds

The monitoring and evaluation on silt arrester system of small watersheds involves monitoring indicators, data collection, analysis and evaluation etc. The Yellow River Water Conservancy Committee carried out a "small watersheds of the Loess Plateau model project" from 2005 to 2010 in the Yellow River sandy area. The project has 12 small watershed silt arresters, one of which is in Yonghe county of Shanxi province. This article takes the work of sediment transport monitoring in Yonghe silt arrester system as an example and describes the monitoring method, content, and finally analyzes the influence of silt arrester system construction and sediment transport on ecological environment.

scholarly journals Sediment transport under increasing anthropogenic stress: Regime shifts within the Yellow River, China

AMBIO ◽  
2020 ◽  
Vol 49 (12) ◽  
pp. 2015-2025
Author(s):  
Shuang Song ◽  
Shuai Wang ◽  
Bojie Fu ◽  
Yanxu Liu ◽  
Kevin Wang ◽  
...  
Keyword(s):  
Sediment Transport ◽  
Yellow River ◽  
Regime Shifts ◽  
The Yellow River ◽  
Anthropogenic Stress ◽  
Stress Regime

Experimental study of sediment transport processes and size selectivity of eroded sediment on steep Pisha sandstone slopes

2020 ◽  
Author(s):  
Pan Zhang ◽  
Pingqing Xiao ◽  
Chunxia Yang
Keyword(s):  
Sediment Transport ◽  
Flow Velocity ◽  
Overland Flow ◽  
Yellow River ◽  
Transport Processes ◽  
The Yellow River ◽  
Size Selectivity ◽  
Coarse Sediment ◽  
Sediment Particles ◽  
Slope Flow

<p>The Pisha sandstone area on the Ordos Plateau of China is the primary source of coarse sediment of the Yellow River. Sediment size distribution and selectivity greatly affect sediment transport and deposition. Hence, sediment transport processes and size selectivity by overland flow on Pisha sandstone slopes were investigated in this study. Experiments were run with Pisha sandstone soil (bulk density of 1.35 g/cm<sup>3</sup>) under rainfall intensities of 87 and 133 mm/h with a 25° slope gradient, and the duration of simulated rainfall is 1 h. Sediment and runoff were sampled at 2-min intervals to examine the size distribution change of the eroded sediment. The particle composition, enrichment rate, fractal dimension, and time distribution characteristics of median grain size (d<sub>50</sub>) of eroded sediment were comprehensively analyzed. Statistical analyses showed that the erosion process of Pisha sandstone slope mainly transported coarse sediment. More than 40% of eroded sediment particles were coarse sediment, which will become the main sediment in the lower reaches of the Yellow River bed. The particle size of eroded sediment tended to gradually decrease with the continuous rainfall but remained larger than the background value of Pisha sandstone soil after refinement. The fractal dimension was positively correlated with the slope flow velocity, while the d<sub>50</sub> was negatively correlated with the slope flow velocity. Overall, these findings show a strong relationship between the sediment transport and flow velocity, which indicates that the selectivity and transportation of sediment particles on the Pisha sand slopes is mainly influenced by the hydrodynamic parameters of overland flow. This study provides a methodology and data references for studying the particle selectivity characteristics of eroded sediment and provides a scientific basis for revealing the mechanism of erosion and sediment yield in the Pisha sandstone area of China.</p>

Analysis for the Cause of Sharp Cutoff of Water and Sediment in He-Long Reach the Yellow River Middle Area

2012 ◽  
Vol 212-213 ◽  
pp. 272-277 ◽  
Author(s):  
Ling Ling Kang ◽  
Kun Liu ◽  
Fei Fei Dong ◽  
Sheng Li Zhang ◽  
Jun Jun Liu
Keyword(s):  
Yellow River ◽  
High Strength ◽  
The Yellow River ◽  
Primary Reason ◽  
Large Area ◽  
Rainfall Condition ◽  
Yield Increase ◽  
Water And Sediment ◽  
Long Time ◽  
Sharp Cutoff

This paper analyzes the circumstance of the sharp cutoff of water and sediment in He-Long reach recently, discusses the cause of the change of water and sediment. The study shows that, the change of underling surface and the rainfall without runoff are the primary reason for the sharp cutoff of water and sediment, if the rainfall condition changes, especially under the rainstorm which in the large area, with high strength and last for long time, the accumulated and secluded sediments could make the sediment yield increase sharply, the circumstance of sharp cutoff of water and sediment would change.

scholarly journals MODELING SEDIMENT TRANSPORT IN THE YELLOW RIVER MOUTH

2011 ◽  
Vol 1 (32) ◽  
pp. 13
Author(s):  
Haibo Zong ◽  
Pingxing Ding ◽  
Fengyan Shi
Keyword(s):  
Sediment Transport ◽  
Yellow River ◽  
Sediment Resuspension ◽  
River Mouth ◽  
Sediment Concentration ◽  
The Yellow River ◽  
Numerical Studies ◽  
Wave Effects ◽  
Coastal Sediment Transport ◽  
Yellow River Mouth

Yellow River is famous for its high sediment concentration, which carries a huge amount of sediment into Bohai Sea during the flood season. In the mouth of Yellow River, the suspended sediment concentration (here after: SSC) are relatively high and the average depth is generally shallow. Recent studies indicated that in the shallow and micro-tide area, wave usually is a primary mechanism for bottom sediment resuspension. Most numerical studies of sediment transport in the Yellow River mouth didn't include the wave effects. To analyze the sediment transport in the Yellow River mouth with wave effect, a Coastal Sediment Transport Modeling System (CSTMS) was applied in this study.

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