Yuan Jin

National Marine Environmental Monitoring Center

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Jinyong Zhang

Army Medical University

Weiyue Zhang

China National Environmental Monitoring Center

Jianheng Zhang

Shanghai Ocean University

Yuchen Li

Changchun University of Technology

Lingyu Shen

Chinese Academy of Medical Sciences & Peking Union Medical College

Jinqing Ye

National Marine Environmental Monitoring Center

Li Chen

Nanjing University of Information Science and Technology

Xiaohua He

Hubei Provincial Water Resources and Hydropower Planning Survey and Design Institute

Yule Wang

Beijing Jiaotong University

Yunlei Zhang

Xiamen University

Cooperative Institutions

National Marine Environmental Monitoring Center

China National Environmental Monitoring Center

Wuhan University

University of Chinese Academy of Sciences

Sichuan University

Shanghai Ocean University

Hebei Agricultural University

Chinese Academy of Medical Sciences & Peking Union Medical College

Nanjing Medical University

Capital Medical University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Effect of the Three Gorges Reservoir on vertical distribution of suspended sediment concentration and estimation accuracy of depth‐average concentration in downstream reaches

River Research and Applications (2023)

Yule Wang Li Chen Yuan Jin Yuchen Li Cheng-Guang Yang

Abstract The sediment regime in the middle Yangtze River has been significantly changed from quasi‐equilibrium to nonequilibrium since the impoundment of the Three Georges Reservoir (TGR). To understand the effects of the TGR on vertical distribution of suspended sediment concentration (SSC) and estimation accuracy of mean concentration, vertical sediment concentration and flow velocity data at the Shashi and Jianli hydrological stations in the reach before and after the impoundment were collected. Comparisons and analysis of vertical profiles of SSC before and after the TGR impoundment show that after the impoundment of the TGR, due to the coarsening of sediment particle size, the reduction in sediment load, and the significant decrease in sediment saturation, the vertical distribution of SSC in the downstream reaches became more uneven under medium and low water flows, which was reflected in the vertical gradient and the fluctuation degree of SSC significantly increased. In addition, the depth‐average sediment concentrations were calculated by the selected‐point method and the mean values calculated by the “multi‐point method” were regarded as the “true mean” to evaluate the accuracy of the mean value calculated by the “few‐point method.” It was found that the relative errors for the selected‐point method were mainly positive before impoundment but mainly negative after impoundment. Additionally, the correction factors of one‐point, two‐point, and three‐point methods and the position of the near‐bed substituted point for the five‐point method were given to reduce the error when the point measurements were used to calculate the depth‐average sediment concentration in the downstream reaches.

Three gorges

Saturation (graph theory)

10.1002/rra.4155

Cite

Citations (0)

Spatiotemporal dynamics of bacterioplankton communities in the estuaries of two differently contaminated coastal areas: Composition, driving factors and ecological process

Marine Pollution Bulletin (2024)

Weiyue Zhang Jinqing Ye Xiaohan Liu Yunlei Zhang Jinyong Zhang

Bacterioplankton

Dry season

Wet season

10.1016/j.marpolbul.2024.116263

Cite

Citations (3)