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Nitrate transformation and source tracking of rivers draining into the Bohai Sea using a multi-tracer approach combined with an optimized Bayesian stable isotope mixing model

文献类型：期刊论文

作者Ren, Xinwei5; Yue, Fu-Jun1,5,6; Tang, Jianhui2; Li, Cai4; Li, Si-Liang1,3,5,6
刊名JOURNAL OF HAZARDOUS MATERIALS
出版日期2024-02-05
卷号463页码:11
ISSN号0304-3894
关键词Dual stable isotope Nitrate appointment MixSIAR Parameter optimization Nitrogen load
DOI10.1016/j.jhazmat.2023.132901
通讯作者Yue, Fu-Jun(fujun_yue@tju.edu.cn) ; Li, Si-Liang(siliang.li@tju.edu.cn)
英文摘要Excessive levels of NO3 -can result in multiple eco-environmental issues due to potential toxicity, especially in coastal areas. Accurate source tracing is crucial for effective pollutant control and policy development. Bayesian models have been widely employed to trace NO3 -sources, while limited studies have utilized optimized Bayesian models for NO3 - tracing in the coastal rivers. The Bohai Rim is highly susceptible to ecological disturbances, particularly N pollution, and has emerged as a critical area. Therefore, identification the N fate and understanding their sources contribution is urgent for pollution mitigation efforts. In addition, understanding the influenced key driven factors to source dynamic in the past ten years is also implication to environmental management. In this study, water samples were collected from 36 major river estuaries that drain into the Bohai Sea of North China. The main transformation processes were analyzed and quantified the sources of NO3 -using a Bayesian stable isotope mixing model (MixSIAR) with isotopic approach (815N-NO3- and 818O-NO3-). The overall isotopic composition of 815N-NO3- and 818O-NO3- in estuary waters ranged from -0.8-19.3%o (9.3 +/- 4.6%o) and from -7.1-10.5%o (5.0 +/- 4.3%o), respectively. The main sources of nitrate in most river estuaries were manure & sewage, and chemical fertilizer, while weak denitrification and mixed processes were observed in Bohai Rim
WOS关键词CHANGJIANG RIVER ; LAIZHOU BAY ; NITROGEN ; IDENTIFICATION ; POLLUTION ; TRENDS ; CHINA
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001110179500001
资助机构National Natural Science Foundation of China ; National Science & Technology Fundamental Resources Investigation Program of China ; Haihe Laboratory of Sustainable Chemical Transformations
源URL[http://ir.yic.ac.cn/handle/133337/33210]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_近岸生态与环境实验室
通讯作者Yue, Fu-Jun; Li, Si-Liang
作者单位1.Tianjin Univ, Tianjin Bohai Rim Coastal Earth Crit Zone Natl Obs, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
3.Haihe Lab Sustainable Chem Transformat, Tianjin 300192, Peoples R China
4.Huaiyin Normal Univ, Sch Urban & Environm Sci, Huaian 223300, Peoples R China
5.Tianjin Univ, Sch Earth Syst Sci, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China
6.Tianjin Univ, Tianjin Key Lab Earth Crit Zone Sci & Sustainable, Tianjin 300072, Peoples R China
推荐引用方式
GB/T 7714		 Ren, Xinwei,Yue, Fu-Jun,Tang, Jianhui,et al. Nitrate transformation and source tracking of rivers draining into the Bohai Sea using a multi-tracer approach combined with an optimized Bayesian stable isotope mixing model[J]. JOURNAL OF HAZARDOUS MATERIALS,2024,463:11.
APA Ren, Xinwei,Yue, Fu-Jun,Tang, Jianhui,Li, Cai,&Li, Si-Liang.(2024).Nitrate transformation and source tracking of rivers draining into the Bohai Sea using a multi-tracer approach combined with an optimized Bayesian stable isotope mixing model.JOURNAL OF HAZARDOUS MATERIALS,463,11.
MLA Ren, Xinwei,et al."Nitrate transformation and source tracking of rivers draining into the Bohai Sea using a multi-tracer approach combined with an optimized Bayesian stable isotope mixing model".JOURNAL OF HAZARDOUS MATERIALS 463(2024):11.

入库方式： OAI收割

来源：烟台海岸带研究所

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