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Shasha Han
State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China

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Journal article
Published: 16 July 2021 in Sustainability
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Approximately 90% of the sediment yield of the Yellow River is derived from the Loess Plateau. In this paper, the Loess Plateau was used as the research object. To investigate the influence of economic and social development on reducing sediment load of the Yellow River, a mathematical method was employed with hydrological and sediment data from three hydrological stations (Toudaoguai and Sanmenxia at the Yellow River, and Ganguyi at the Yan River) as well as per capita GDP data from the Yan River basin. The results showed that the reduction in runoff in the reaches between the Toudaoguai and Sanmenxia stations accounted for 39.3% of the decrease in the sediment load of the Yellow River, and the other 60.7% of the decrease may have resulted from economic and social development. Using the Yan River basin as an example, there was an inverse relationship between per capita GDP and sediment delivery during the period from 1984 to 2018. Grey relational analysis revealed a relatively high relation between the sediment load of the Yan River and the number of rural laborers transferred from the area, the afforestation area, and the tertiary industry value of Yan’an city. Thus, economic development and social transformation are highly related to sediment delivery in the basin, which may result in a decrease in sediment delivery to some extent.

ACS Style

Guangming Tan; Shasha Han; Yuecong Yu; Rui Hu; Yiwei Lv; Caiwen Shu. Impact of Social and Economic Development on Sediment Load of the Yellow River. Sustainability 2021, 13, 7976 .

AMA Style

Guangming Tan, Shasha Han, Yuecong Yu, Rui Hu, Yiwei Lv, Caiwen Shu. Impact of Social and Economic Development on Sediment Load of the Yellow River. Sustainability. 2021; 13 (14):7976.

Chicago/Turabian Style

Guangming Tan; Shasha Han; Yuecong Yu; Rui Hu; Yiwei Lv; Caiwen Shu. 2021. "Impact of Social and Economic Development on Sediment Load of the Yellow River." Sustainability 13, no. 14: 7976.

Research article
Published: 25 April 2020 in Earth Surface Processes and Landforms
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Delta channels are important landforms at the interface of sediment transfer from terrestrial to oceanic realms and affect large, and often vulnerable, human populations. Understanding these dynamics is pressing because delta processes are sensitive to climate change and human activity via adjustments in, for example, mean sea level, and water and sediment regime. Data collected over a 40‐year period along a 110km distributary channel of the Yellow River Delta offers an ideal opportunity to investigate morphological responses to changing water and sediment regimes and intensive human activity. Complementary data from the delta front provide an opportunity to explore the interaction between delta channel geomorphology and delta‐front erosion‐accretion patterns. Cross‐section dimensions and shape, longitudinal gradation and a sediment budget are used to quantify spatial and temporal morphological change along the Qingshuigou channel. Distinctive periods of channel change are identified, and analysis provides a detailed understanding of the temporal and spatial adjustments of the channel to specific human interventions, including two artificial channel diversions and changes in water and sediment supply driven by river management, and downstream delta‐front development. Adjustments to the diversions included a short‐lived period of erosion upstream and significant erosion in the newly activated channel, which progressed downstream. Channel geomorphology widened and deepened during periods when management increased water yield and decreased sediment supply, and narrowed and shallowed during periods when management reduced water yield and the sediment load. Changes along the channel are driven by both upstream and downstream forcing. Finally, there is some evidence that changing delta‐front erosion‐accretion patterns played an important role to the geomorphic evolution of the deltaic channel; an area that requires further investigation.

ACS Style

Shasha Han; Stephen Rice; Guangming Tan; Kairong Wang; Shan Zheng. Geomorphic evolution of the Qingshuigou channel of the Yellow River Delta in response to changing water and sediment regimes and human interventions. Earth Surface Processes and Landforms 2020, 45, 2350 -2364.

AMA Style

Shasha Han, Stephen Rice, Guangming Tan, Kairong Wang, Shan Zheng. Geomorphic evolution of the Qingshuigou channel of the Yellow River Delta in response to changing water and sediment regimes and human interventions. Earth Surface Processes and Landforms. 2020; 45 (10):2350-2364.

Chicago/Turabian Style

Shasha Han; Stephen Rice; Guangming Tan; Kairong Wang; Shan Zheng. 2020. "Geomorphic evolution of the Qingshuigou channel of the Yellow River Delta in response to changing water and sediment regimes and human interventions." Earth Surface Processes and Landforms 45, no. 10: 2350-2364.

Conference paper
Published: 01 August 2016 in IOP Conference Series: Earth and Environmental Science
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Extreme urban flood events occur frequently in China, often leading to heavy casualties. Thus, it is of great importance to study the mechanism of the instability of the human body in floodwaters. The results of such research can provide scientific reference for city flood control standards. In this paper, a formula for the incipient velocity of the human body, during toppling instability in floodwaters, was derived based on mechanical characteristics, instability mechanism, and critical conditions during instability. A series of flume experiments were conducted to investigate the incipient velocity of two 3D printed human body models of different sizes; the resultant experimental data was used to determine parameters in the derived formula. Additionally, grip strength was taken as a standard of a person's ability to withstand floodwaters. Finally, crowd factors were introduced, and based on this study, a criterion for the toppling instability of different subjects in floodwaters was proposed. Compared to the results of previous studies, the proposed formula can better predict the instability of the human body in floodwaters.

ACS Style

C W Shu; S S Han; W N Kong; B L Dong. Mechanism of toppling instability of the human body in floodwaters. IOP Conference Series: Earth and Environmental Science 2016, 39, 12038 .

AMA Style

C W Shu, S S Han, W N Kong, B L Dong. Mechanism of toppling instability of the human body in floodwaters. IOP Conference Series: Earth and Environmental Science. 2016; 39 ():12038.

Chicago/Turabian Style

C W Shu; S S Han; W N Kong; B L Dong. 2016. "Mechanism of toppling instability of the human body in floodwaters." IOP Conference Series: Earth and Environmental Science 39, no. : 12038.