Sources and transformations of anthropogenic nitrogen in the highly disturbed Huai River Basin, Eastern China

doi:10.1007/s11356-019-04470-1

	Sources and transformations of anthropogenic nitrogen in the highly disturbed Huai River Basin, Eastern China
	Ma, Pei 1; Liu, Shuaixia 1; Yu, Qibiao 2; Li, Xinyan 3; Han, Xinqing 4
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2019-04-01
卷号	26 期号:11 页码:11153-11169
关键词	Isotopic composition Pollution source identification Nitrate Ammonium Huai River
ISSN号	0944-1344
DOI	10.1007/s11356-019-04470-1
通讯作者	Ma, Pei(map55912@yahoo.com)
英文摘要	Due to serious nitrogen pollution in the Huai River, Eastern China, nitrogenous concentrations and dual stable isotopes (delta N-15 and delta O-18) were measured to ascertain the sources and transformation of nitrogen in the Shaying River, the largest and most polluted tributary of the Huai River during the summer and winter seasons. Total nitrogen (TN), NO3-, and NH4+ were significantly higher in winter, with values of 7.84 +/- 3.44 mg L-1, 2.31 +/- 0.81 mg L-1, and 3.00 +/- 2.24 mg L-1, respectively, while the highest nitrogen compounds occurred in the Jialu River, one of the tributaries of the Shaying River, in both summer and winter. Isotope characteristics of nitrate reveal that manure and sewage were the principal nitrate sources in both summer (62.44 +/- 19.66%) and winter (67.33 +/- 15.45%), followed by soil organic nitrogen, with 24.94 +/- 15.52% in summer and 26.33 +/- 9.45% in winter. Values of delta N-15-suspended particulate nitrogen (SPN) ranged from 0.78 to 13.51%, revealing that point source from industrial and domestic sewage accounted for the largest input to SPN at most sites, whereas soil organic nitrogen and agricultural fertilizers were found in the Jialu River in both sampling periods. Point sources from septic/manure and household waste were the main contributors to ammonium in most river water samples in both summer and winter; most wastewater discharged into the river was untreated, which was one of the main reasons for the high level of ammonium in winter. Nitrogen pollution and the dams had an effect on N transformation in the river. Significant assimilation of NH4+ and aerobic denitrification competed for NH4+, resulting in the weakness of nitrification in the summer. Denitrification was also an important process of nitrate removal during the summer, whereas nitrification was a key N transformation process in the river in the winter time. To reduce nitrogen pollution and improve water quality, greater effort should be focused on the management of sources from urban input as well as on the improvement in sewage treatment.
资助项目	National Natural Foundation of China[41401549] ; National Natural Foundation of China[41671479]
WOS关键词	PARTICULATE ORGANIC-MATTER ; ISOTOPIC COMPOSITION ; NITRATE SOURCES ; WATER-QUALITY ; NATURAL-ABUNDANCE ; HETEROTROPHIC NITRIFICATION ; CONTAMINATED GROUNDWATER ; AEROBIC DENITRIFICATION ; SOURCE IDENTIFICATION ; SEASONAL VARIABILITY
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000464854500060
资助机构	National Natural Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/48213]
专题	中国科学院地理科学与资源研究所
通讯作者	Ma, Pei
作者单位	1.Henan Univ Engn, 1 Xianghe Rd, Zhengzhou 451191, Henan, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing 210008, Jiangsu, Peoples R China 4.Zhoukou Hydrol & Water Resources Survey Bur, Zhoukou 466000, Henan, Peoples R China
推荐引用方式 GB/T 7714	Ma, Pei,Liu, Shuaixia,Yu, Qibiao,et al. Sources and transformations of anthropogenic nitrogen in the highly disturbed Huai River Basin, Eastern China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2019,26(11):11153-11169.
APA	Ma, Pei,Liu, Shuaixia,Yu, Qibiao,Li, Xinyan,&Han, Xinqing.(2019).Sources and transformations of anthropogenic nitrogen in the highly disturbed Huai River Basin, Eastern China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,26(11),11153-11169.
MLA	Ma, Pei,et al."Sources and transformations of anthropogenic nitrogen in the highly disturbed Huai River Basin, Eastern China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 26.11(2019):11153-11169.