Identification of nitrate sources in the Jing River using dual stable isotopes, Northwest China

doi:10.1007/s11356-021-15380-6

	Identification of nitrate sources in the Jing River using dual stable isotopes, Northwest China
	Hu, Jing 1; Pan, Mengyan 2; Han, Tianhao 2; Zhuang, Zhi 2; Cao, Yunning 1; Yang, Kaili 3; Li, Yuliang 2; Liu, Weiguo 1
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2021-07-17
页码	9
关键词	Nitrate pollution Jing River Stable isotope SIAR model Source trace Nitrogen conversion
ISSN号	0944-1344
DOI	10.1007/s11356-021-15380-6
通讯作者	Li, Yuliang(yulianglee175@chd.edu.cn) ; Liu, Weiguo(liuwg@loess.llqg.ac.cn)
英文摘要	Nitrate (NO3-) contamination has become a dominant international problem in the aquatic environment, so identifying the sources and transformations of NO3- is the basis for improving water quality. Since the Jing River is the largest tributary of the Wei River, to understand its water quality, this study collected surface water samples from the Shaanxi section of the Jing River during the dry season. The potential sources of NO3- were analyzed by hydrochemical and bi-isotopic methods, and the SIAR model was used to estimate the proportional contribution of each source. Results indicated that NO3--N was the main form of inorganic nitrogen in this area, and the average total nitrogen content was 10.23 mg center dot L-1, which showed that nitrogen pollution was highly serious; the transformation process of nitrogen in this study area was mainly nitrification; The results of Bayesian model showed that manure and sewage contributed to the most NO3- (64.39%) in the dry season, followed by soil nitrogen, which was 26.35%. These results help to adopt better nitrogen management measures to meet the national environmental quality standards for surface water.
资助项目	National Natural Science Foundation of China[41991252] ; state key laboratory of loess and Quaternary Geology[SKLLQG1912] ; central higher education foundation of Chang'an University[300102290505]
WOS关键词	NITROGEN POLLUTION ; LOESS PLATEAU ; GROUND-WATER ; DENITRIFICATION ; OXYGEN ; N-15 ; FRACTIONATION ; SINKS ; O-18
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000673708500004
资助机构	National Natural Science Foundation of China ; state key laboratory of loess and Quaternary Geology ; central higher education foundation of Chang'an University
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/16855]
专题	地球环境研究所_加速器质谱中心
通讯作者	Li, Yuliang; Liu, Weiguo
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Chang An Univ, Sch Water & Environm, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Minist Educ, Xian 710054, Peoples R China 3.Xian Inst Innovat Earth Environm Res, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Hu, Jing,Pan, Mengyan,Han, Tianhao,et al. Identification of nitrate sources in the Jing River using dual stable isotopes, Northwest China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2021:9.
APA	Hu, Jing.,Pan, Mengyan.,Han, Tianhao.,Zhuang, Zhi.,Cao, Yunning.,...&Liu, Weiguo.(2021).Identification of nitrate sources in the Jing River using dual stable isotopes, Northwest China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,9.
MLA	Hu, Jing,et al."Identification of nitrate sources in the Jing River using dual stable isotopes, Northwest China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021):9.