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The influence of hyporheic upwelling fluxes on inorganic nitrogen concentrations in the pore water of the Weihe River
Wang, Weize1; Song, Jinxi1,2; Zhang, Guotao3,4; Liu, Qi1; Guo, Weiqiang1; Tang, Bin1; Cheng, Dandong2,4; Zhang, Yan1
2018-03-01
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
Volume112Pages:105-115
SubtypeArticle
Contribution Rank2
AbstractHyporheic zone is an important region of nitrogen removal in river systems. Hyporheic exchange generally leads to heterogeneous redox environments, which are conducive to nitrogen transformation. This study seeks to determine the influence of hyporheic upwelling fluxes on inorganic nitrogen (NH4+, NO3-, and NO2-) concentrations in the sediment pore water of the Weihe River, China. The patterns and magnitudes of hyporheic water exchange on 12 August 2016 were derived by a one-dimensional heat transport model, and inorganic nitrogen concentrations in the pore water, surface water, and groundwater were obtained. The results indicated that hyporheic water exchange was characterized by upwelling at each point during the test period. Moreover, NH4+ dominated the hyporheic zone from 0 to 45 cm, likely due to organic nitrogen mineralization. Additionally, a non-linear relationship was observed between NH4+ concentrations and upwelling fluxes. This relationship was derived by analyzing the effect of upwelling on biogeochemical activity and nitrogen transformation. Notably, increasing upwelling fluxes less than 400 mm/d resulted in high NH4+ concentrations, whereas fluxes exceeding 400 mm/d led to low NH4+ concentrations. Overall, the variations in inorganic nitrogen associated with hyporheic water exchange are of great importance for controlling nitrogen pollution and maintaining sustainable health in river systems.
KeywordHyporheic zone Nitrogen Pore water The Weihe River Upwelling fluxes
DOI10.1016/j.ecoleng.2017.12.012
Indexed BySCI
WOS KeywordHYDRAULIC CONDUCTIVITY ; GROUNDWATER EXCHANGE ; NORTHWEST CHINA ; DEPTH PROFILES ; ZONE ; TEMPERATURE ; STREAM ; SURFACE ; SEDIMENTS ; DYNAMICS
Language英语
Funding ProjectNational Natural Science Foundation of China[51379175] ; National Natural Science Foundation of China[51679200] ; National Natural Science Foundation of China[41601017] ; Program for Key Science and Technology Innovation Team in Shaanxi Province[2014KCT-27] ; Chinese Academy of Sciences[A315021406]
WOS Research AreaEnvironmental Sciences & Ecology ; Engineering
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000424938300014
Funding OrganizationNational Natural Science Foundation of China ; Program for Key Science and Technology Innovation Team in Shaanxi Province ; Chinese Academy of Sciences
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/21397
Collection中国科学院水利部成都山地灾害与环境研究所
Corresponding AuthorSong, Jinxi
Affiliation1.Northwest Univ Xian, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710127, Shaanxi, Peoples R China;
2.Chinese Acad Sci, 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
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Wang, Weize,Song, Jinxi,Zhang, Guotao,et al. The influence of hyporheic upwelling fluxes on inorganic nitrogen concentrations in the pore water of the Weihe River[J]. ECOLOGICAL ENGINEERING,2018,112:105-115.
APA Wang, Weize.,Song, Jinxi.,Zhang, Guotao.,Liu, Qi.,Guo, Weiqiang.,...&Zhang, Yan.(2018).The influence of hyporheic upwelling fluxes on inorganic nitrogen concentrations in the pore water of the Weihe River.ECOLOGICAL ENGINEERING,112,105-115.
MLA Wang, Weize,et al."The influence of hyporheic upwelling fluxes on inorganic nitrogen concentrations in the pore water of the Weihe River".ECOLOGICAL ENGINEERING 112(2018):105-115.
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