| 地下水硝酸盐中氮、氧同位素研究现状及展望 |
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| 引用本文： | 朱琳,苏小四.地下水硝酸盐中氮、氧同位素研究现状及展望[J].世界地质,2003,22(4):396-403. |
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| 作者姓名： | 朱琳 苏小四 |
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| 作者单位： | 1. 吉林大学环境与资源学院,长春,130026
2. 吉林大学环境与资源学院,长春,130026;北京师范大学环境科学研究所,北京,100875 |
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| 摘 要： | 农业区内浅层地下水中硝酸盐污染普遍存在。为保证供水安全和有效治理污染的地下水体。确定硝酸盐中氮的来源及影响硝酸盐浓度的物理、化学作用尤为重要。由于不同成因的硝酸盐中δ^15N值存在差异，利用N同位素可以确定氮污染源，但有时存在多解性问题；分析硝酸盐的δ^18O值，可提高地下水硝酸盐污染的研究深度。本文综述了用硝酸盐中N、O同位素来区分地下水污染中硝酸盐的不同来源和示踪氮循环过程这两方面的研究进展，并提出一些值得重视的研究方向。
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| 关 键 词： | 氮同位素 氧同位素 地下水 硝酸盐 |
| 文章编号： | 1004-5589(2003)04-0396-08 |
Research Status of Nitrogen and Oxygen Isotopes of Nitrate in Groundwater |
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| Lin Zhua,Xiaosi Suaa.Research Status of Nitrogen and Oxygen Isotopes of Nitrate in Groundwater[J].World Geology,2003,22(4):396-403. |
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| Authors: | Lin Zhua Xiaosi Suaa |
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| Abstract: | Nitrate is a common solutant in groundwater in rural area. Making sure the source of nitrogen in nitrate and understanding the processes affecting nitrate concentration physically and chemically are very important to guarantee safe water supply and control contamination effectively. Since |aa(c)15N values vary in different sources of nitrate, N isotope can be traced to nitrogen contaminate sources. However, multiple solution exists here. Analyzing |aa(c)18O value of nitrate would be helpful to further the study on nitrate contamination in groundwater. This paper summarizes recent trends in the study of tracing nitrogen cycling process and N, O isotopes in distinguishing sources of different nitrates in contaminated groundwater. The authors also proposed some aspects deserved careful study. |
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| Keywords: | N isotope O isotope groundwater nitrate |
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