What is the past, present, and future of scientific research on the Yellow River Basin? —A bibliometric analysis

2022 ◽  
Vol 262 ◽  
pp. 107404
Author(s):  
Zhihao He ◽  
Kaiyuan Gong ◽  
Zhiliang Zhang ◽  
Wenbiao Dong ◽  
Hao Feng ◽  
...  
Keyword(s):  
Bibliometric Analysis ◽  
River Basin ◽  
Yellow River ◽  
Scientific Research ◽  
Yellow River Basin ◽  
The Yellow River ◽  
The Past ◽  
The Yellow River Basin

Yellow River flooding during the past two millennia from historical documents

2020 ◽  
Vol 44 (5) ◽  
pp. 661-678
Author(s):  
Teng Li ◽  
Jinbao Li ◽  
David D Zhang
Keyword(s):  
River Basin ◽  
Yellow River ◽  
Yellow River Basin ◽  
The Yellow River ◽  
River Flooding ◽  
The Past ◽  
Human Management ◽  
Flooding Frequency ◽  
Wet Climate ◽  
The Yellow River Basin

The Yellow River has caused suffering to people with its devastating floods throughout human history. Understanding the occurrence of Yellow River floods and their relationship with climate change is crucial for sustainable water governance in North China. Here we synthesize historical and climatic records in the Yellow River basin to investigate their relationship during the past two millennia. Based on historical archives of river floods and levee breaches, we developed a decadally resolved Yellow River flooding frequency record from 221 BCE to 1949 CE, which provides a rare chance to perceive the river’s long-term flood dynamics. As revealed, the Yellow River flooding can be divided into two distinct stages: an early stage of low-frequency floods from the 220s BCE to the 890s CE; and a late stage of high-frequency floods during the 900s–1940s CE. A substantial increase in flooding frequency around the 10th century fell within the transition period into the Medieval Climate Anomaly (MCA), during which the Yellow River basin featured warm and wet climate conditions. Coincidentally, human management of the Yellow River intensified as a response to more severe and frequent floods. The intense river management persisted thereafter and resulted in the super-elevation of the riverbed, which made the river more prone to flooding. Consequently, the Yellow River flooding frequency remained high even after entering the Little Ice Age, during which the river basin featured cool temperature and reduced precipitation. Our study suggests that the dramatic transition from a previous cool, dry into a warm, wet climate during the MCA period triggered intense human management of river channels and the establishment of the flood-prone nature of the Yellow River.

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.

Sign in / Sign up

Export Citation Format

Share Document