Implication of relationships among suspended sediment size, water discharge and suspended sediment concentration: the Yellow River basin, China

CATENA ◽  
2002 ◽  
Vol 49 (4) ◽  
pp. 289-307 ◽  
Author(s):  
Jiongxin Xu
Keyword(s):  
Suspended Sediment ◽  
River Basin ◽  
Suspended Sediment Concentration ◽  
Yellow River ◽  
Water Discharge ◽  
Yellow River Basin ◽  
Sediment Concentration ◽  
The Yellow River ◽  
Sediment Size ◽  
The Yellow River Basin

scholarly journals GRACE-based estimates of water discharge over the Yellow River basin

2016 ◽  
Vol 7 (3) ◽  
pp. 187-193 ◽  
Author(s):  
Qiong Li ◽  
Bo Zhong ◽  
Zhicai Luo ◽  
Chaolong Yao
Keyword(s):  
River Basin ◽  
Yellow River ◽  
Water Discharge ◽  
Yellow River Basin ◽  
The Yellow River ◽  
The Yellow River Basin

scholarly journals Recent changes of water discharge and sediment load in the Yellow River basin, China

2010 ◽  
Vol 34 (4) ◽  
pp. 541-561 ◽  
Author(s):  
Chiyuan Miao ◽  
Jinren Ni ◽  
Alistair G.L. Borthwick
Keyword(s):  
River Basin ◽  
Abrupt Change ◽  
Sediment Load ◽  
Yellow River ◽  
Water Discharge ◽  
Kendall Test ◽  
Yellow River Basin ◽  
Test Method ◽  
The Yellow River ◽  
The Yellow River Basin

The Yellow River basin contributes approximately 6% of the sediment load from all river systems globally, and the annual runoff directly supports 12% of the Chinese population. As a result, describing and understanding recent variations of water discharge and sediment load under global change scenarios are of considerable importance. The present study considers the annual hydrologic series of the water discharge and sediment load of the Yellow River basin obtained from 15 gauging stations (10 mainstream, 5 tributaries). The Mann-Kendall test method was adopted to detect both gradual and abrupt change of hydrological series since the 1950s. With the exception of the area draining to the Upper Tangnaihai station, results indicate that both water discharge and sediment load have decreased significantly (p<0.05). The declining trend is greater with distance downstream, and drainage area has a significant positive effect on the rate of decline. It is suggested that the abrupt change of the water discharge from the late 1980s to the early 1990s arose from human extraction, and that the abrupt change in sediment load was linked to disturbance from reservoir construction.

scholarly journals Nitrogen Fertilization Effects on Physiology of the Cotton Boll–Leaf System

Agronomy ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 271
Author(s):  
Jing Chen ◽  
Liantao Liu ◽  
Zhanbiao Wang ◽  
Hongchun Sun ◽  
Yongjiang Zhang ◽  
...  
Keyword(s):  
River Basin ◽  
Nitrogen Fertilization ◽  
Yellow River ◽  
Yellow River Basin ◽  
Growth And Yield ◽  
The Yellow River ◽  
Nitrogen Rate ◽  
The Yellow River Basin ◽  
Source Sink ◽  
Subtending Leaves

The objective of this study was to assess the impacts of nitrogen on the physiological characteristics of the source–sink system of upper fruiting branches under various amounts of nitrogen fertilization. A two-year field experiment was conducted with a Bt cotton cultivar in the Yellow River Basin of China. The growth and yield of cotton of the upper fruiting branches were compared under four nitrogen levels: Control (N0, 0 kg ha−1), low nitrogen (N1, 120 kg ha−1), moderate nitrogen (N2, 240 kg ha−1), and high nitrogen (N3, 480 kg ha−1). The results indicated that in the subtending leaves in upper fruiting branches, chlorophyll content, protein content, and peroxidase (POD) activity dramatically increased with nitrogen application, reaching the highest under the moderate nitrogen treatment. The physiological characters in the seeds had the same trends as in the subtending leaves. Furthermore, the moderate nitrogen rate (240 kg ha−1) had a favorable yield and quality. Our results supported that a moderate nitrogen rate (240 kg ha−1) could coordinate the source–sink growth of cotton in the late stage, enhance the yield and fiber quality, and decrease the cost of fertilizer in the Yellow River Basin of China and other similar ecological areas.

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