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Tracing the Origin of Groundwater Nitrate in an Area Affected by Acid Rain Using Dual Isotopic Composition of Nitrate

文献类型：期刊论文

作者Huang, Tianming1,2,3,5; Li, Zhenbin1,2,3; Ma, Baoqiang2,4; Long, Yin1,2,3
刊名GEOFLUIDS
出版日期2019-11-29
卷号2019页码:12
ISSN号1468-8115
DOI10.1155/2019/8964182
英文摘要Acid rain with a relatively high concentration of ammonium and nitrate can accelerate rock weathering. However, its impact on groundwater nitrate is uncertain. This study evaluated the dual isotopic composition of nitrate (delta N-15-NO3- and delta O-18-NO3-) from precipitation to groundwater in a rural mountainous area affected by acid rain. The average concentration for NH4+ is 1.25 mg/L and NO3- is 2.59 mg/L of acid rain. Groundwater NO3- concentrations ranged from <0.05 to 11.8 mg/L (baseline), and NH4+ concentrations ranged from 0.06 to 0.28 mg/L. The results show that groundwater delta O-18-NO3- values (-4.7 parts per thousand to +4.2 parts per thousand) were lower than the values of rainfall delta O-18-NO3- (+24.9 parts per thousand to +67.3 parts per thousand), suggesting that rainfall NO3- contributes little to groundwater NO3-. Groundwater delta N-15-NO3- values (+0.1 parts per thousand to +7.5 parts per thousand) were higher than the values of delta N-15-NO3- derived from the nitrification of rainfall NH4+ (less than -4.7 parts per thousand in the study area), suggesting that nitrification of rainfall NH4+ also contributes little to groundwater NO3-. This implies that rainfall NO3- and NH4+ have been utilized. The dual isotopic composition of nitrate shows that baseline groundwater NO3- is derived mainly from nitrification of soil nitrogen. The denitrification process is limited in the groundwater system. This study shows that the rainfall NO3- and NH4+ contribute little to groundwater NO3-, improving the understanding of the nitrogen cycle in areas with a high concentration of NH4+ and NO3- in rainfall.
资助项目National Natural Science Foundation of China[41672254] ; National Natural Science Foundation of China[41877207] ; Youth Innovation Promotion Association CAS[2018087] ; CAS scholarship[201825]
WOS研究方向Geochemistry & Geophysics ; Geology
语种英语
WOS记录号WOS:000501750200001
出版者WILEY-HINDAWI
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; CAS scholarship ; CAS scholarship ; CAS scholarship ; CAS scholarship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; CAS scholarship ; CAS scholarship ; CAS scholarship ; CAS scholarship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; CAS scholarship ; CAS scholarship ; CAS scholarship ; CAS scholarship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; CAS scholarship ; CAS scholarship ; CAS scholarship ; CAS scholarship
源URL[http://ir.iggcas.ac.cn/handle/132A11/95829]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Huang, Tianming
作者单位1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.China Univ Min & Technol, Coll Geosci & Surveying Engn, Beijing 100083, Peoples R China
5.Univ Calgary, Dept Geosci, Calgary, AB T2N 1N4, Canada
推荐引用方式
GB/T 7714		 Huang, Tianming,Li, Zhenbin,Ma, Baoqiang,et al. Tracing the Origin of Groundwater Nitrate in an Area Affected by Acid Rain Using Dual Isotopic Composition of Nitrate[J]. GEOFLUIDS,2019,2019:12.
APA Huang, Tianming,Li, Zhenbin,Ma, Baoqiang,&Long, Yin.(2019).Tracing the Origin of Groundwater Nitrate in an Area Affected by Acid Rain Using Dual Isotopic Composition of Nitrate.GEOFLUIDS,2019,12.
MLA Huang, Tianming,et al."Tracing the Origin of Groundwater Nitrate in an Area Affected by Acid Rain Using Dual Isotopic Composition of Nitrate".GEOFLUIDS 2019(2019):12.

入库方式： OAI收割

来源：地质与地球物理研究所

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