IMHE OpenIR  > 山地灾害与地表过程重点实验室
Effects of Hyporheic Water Fluxes and Sediment Grain Size on the Concentration and Diffusive Flux of Heavy Metals in the Streambed
Liu, Qi1; Song, Jinxi1,2; Zhang, Guotao3,4; Wang, Weize1; Guo, Weigiang1; Tang, Bin1; Kong, Feihe1; Huo, Aidi5
Corresponding AuthorJinxi Song
2017-09-01
Source PublicationINTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
ISSN1660-4601
Volume14Issue:9Pages:DOI:10.3390/ijerph14091020
SubtypeArticle
AbstractThe hyporheic zone regulates physicochemical processes in surface-groundwater systems and can be an important source of heavy metals in fluvial systems. This study assesses the pore water concentrations and diffusive fluxes of heavy metals with respect to the vertical water exchange flux (VWEF) and sediment grain size. Water and sediment samples were collected on August 2016 from upstream Site 1 and downstream Site 2 along the Juehe River in Shaanxi Province, China. Streambed vertical hydraulic conductivity (K-v) and the VWEF were estimated via the standpipe permeameter test method and Darcy's law. The heavy metal concentrations in the pore water were measured and the diffusive fluxes were calculated using Fick's first law. The VWEF patterns were dominated by upward flow, and Site 1 featured higher values of Kv and VWEF. Higher Cu and Zn concentrations occurred near the channel centre with coarse sand and gravel and greater upward VWEFs because coarser sediment and greater upward VWEFs cause stronger metal desorption capacity. Additionally, Cu and Zn at the two sites generally diffused from pore water to surface water, potentially due to the upward VWEF. The VWEF and sediment grain size are likely crucial factors influencing the heavy metal concentrations and diffusive fluxes.
KeywordHeavy Metals Hyporheic Vertical Water Exchange Fluxes Sediment Grain Size Spatial Variability Diffusive Fluxes Juehe River
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.3390/ijerph14091020
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Public, Environmental & Occupational Health
Indexed BySCI ; SSCI
WOS KeywordSATURATED HYDRAULIC CONDUCTIVITY ; SURFACE-WATER ; SPATIAL VARIABILITY ; RIVER ; GROUNDWATER ; EXCHANGE ; CHINA ; INTERFACE ; USA ; TEMPERATURE
Language英语
WOS SubjectEnvironmental Sciences ; Public, Environmental & Occupational Health
WOS IDWOS:000411574400072
Funding OrganizationNational Natural Science Foundation of China(51379175 ; Specialized Research Fund for the Doctoral Program of Higher Education(20136101110001) ; Program for Key Science and Technology Innovation Team in Shaanxi Province(2014KCT-27) ; Hundred Talents Project of the Chinese Academy of Sciences(A315021406) ; 51679200 ; 51079123)
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19123
Collection山地灾害与地表过程重点实验室
Affiliation1.Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710127, Shaanxi, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Changan Univ, Sch Environm Sci & Engn, Xian 710054, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Liu, Qi,Song, Jinxi,Zhang, Guotao,et al. Effects of Hyporheic Water Fluxes and Sediment Grain Size on the Concentration and Diffusive Flux of Heavy Metals in the Streambed[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,2017,14(9):DOI:10.3390/ijerph14091020.
APA Liu, Qi.,Song, Jinxi.,Zhang, Guotao.,Wang, Weize.,Guo, Weigiang.,...&Huo, Aidi.(2017).Effects of Hyporheic Water Fluxes and Sediment Grain Size on the Concentration and Diffusive Flux of Heavy Metals in the Streambed.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,14(9),DOI:10.3390/ijerph14091020.
MLA Liu, Qi,et al."Effects of Hyporheic Water Fluxes and Sediment Grain Size on the Concentration and Diffusive Flux of Heavy Metals in the Streambed".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 14.9(2017):DOI:10.3390/ijerph14091020.
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