Using Natural Radionuclides to Trace Sources of Suspended Particles in the Lower Reaches of the Yellow River

作     者：ZHANG Han BURNETT CWilliam ZHANG Xiaojie ZHAO Shibin YANG Disong NAN Haiming YU Zhigang XU Bochao ZHANG Han;BURNETT C.William;ZHANG Xiaojie;ZHAO Shibin;YANG Disong;NAN Haiming;YU Zhigang;XU Bochao

作者机构：Frontiers Science Center for Deep Ocean Multispheres and Earth Systemand Key Laboratory of Marine Chemistry Theory and TechnologyMinistry of EducationOcean University of ChinaQingdao 266100China Laboratory for Marine Ecology and Environmental ScienceQingdao National Laboratory for Marine Science and TechnologyQingdao 266071China College of Chemistry and Chemical EngineeringOcean University of ChinaQingdao 266100China Department of EarthOcean and Atmospheric ScienceFlorida State UniversityTallahasseeFL 32306USA North China Sea Environmental Monitoring CenterState Oceanic AdministrationKey Laboratory of Ecological Prewarning and Protection of Bohai SeaMNRQingdao 266033China Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and MitigationQingdao 266033China 

出 版 物：《Journal of Ocean University of China》 (中国海洋大学学报（英文版）)

年 卷 期：2024年第23卷第1期

页      面：99-108页

核心收录：

学科分类：0707[理学-海洋科学] 08[工学] 081502[工学-水力学及河流动力学] 0815[工学-水利工程] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.U22A20580,42130410,and U1906210) the Fundamental Research Funds for the Central Universities(No.201962003) 

主　　题：the Yellow River suspended particulate matter size-fractions radionuclides sediment sources water elutriator 

摘      要：Natural radionuclides are powerful tools for understanding the sources and fate of suspended particulate matter(SPM).Particulate matter with different particle sizes behaves differently with respect to adsorption and *** analyzed the activi-ties and distribution characteristics of multiple natural radionuclides(238U,226Ra,40K,228Ra,7Be and 210Pbex)on size-fractionated SPM at the Lijin Hydrographic Station(Huanghe or Yellow River)every month over a one-year *** showed that medium silt(16–32µm)was the main *** expected,the activity of each radionuclide decreased with an increase of particle *** examined the sources of SPM with different particle sizes using activity ratios of 226Ra/238U,228Ra/226Ra,40K/238U and 7Be/210Pbex,and concluded that SPM with different particle sizes originated from different *** results indicate that fine SPM(32µm)was mainly derived from resuspension of riverbed *** high runoff periods,the concentration of SPM increased significantly,and the pro-portion of fine particles originating upstream *** occurring radioactive isotopes,especially on size-fractionated par-ticles,are therefore seen as useful tracers to understand the sources and behaviors of riverine particles transported from land to sea.