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| 氮氧同位素在河流硝酸盐研究中的应用 | |
| 引用本文： | 陈法锦,李学辉,贾国东.氮氧同位素在河流硝酸盐研究中的应用[J].地球科学进展,2007,23(12):1251-1257. |
| 作者姓名： | 陈法锦 李学辉 贾国东 |
| 作者单位： | 1. 中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东,广州,510640;中国科学院研究生院,北京,100039 2. 神华乌海煤焦化有限责任公司项目研发中心,内蒙古,乌海,016000 3. 中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东,广州,510640 |
| 摘 要： | 多年来，世界各地河流普遍存在硝酸盐污染问题。为控制河流的硝酸盐污染，确定河水中硝酸盐的来源以及研究氮的循环过程就显得尤为重要。由于在不同成因下，硝酸盐的δ15N和δ18O存在着较大差异，因此利用氮、氧同位素方法研究河流硝酸盐问题正日益受到国内外研究人员的重视。综述了用硝酸盐中氮、氧同位素来研究河流硝酸盐的不同来源(大气沉降、化肥、牲畜粪、土壤硝酸盐等)和示踪其地球化学循环过程，特别是反硝化过程，这两方面的研究进展，并对我国河流硝酸盐研究现状进行了讨论及提出今后的研究方向。 |
| 关 键 词： | 河流 硝酸盐 氮同位素 氧同位素 |
| 文章编号： | 1001-8166（2007）12-1251-07 |
| 收稿时间： | 2007-07-04 |
| 修稿时间： | 2007-11-13 |
The Application of Nitrogen and Oxygen Isotopes in the Study of Nitrate in Rivers |
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| CHEN Fa-jin,LI Xue-hui,JIA Guo-dong.The Application of Nitrogen and Oxygen Isotopes in the Study of Nitrate in Rivers[J].Advance in Earth Sciences,2007,23(12):1251-1257. | |
| Authors: | CHEN Fa-jin LI Xue-hui JIA Guo-dong |
| Institution: | 1.State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou 510640, China; 2.Graduate School of the Chinese Academy of Sciences，Beijing 100039，China；3.Project Research and Development Center,Wuhai Coal Coking Corporation Limited of ShenHua Group，Wuhai 016000，China |
| Abstract: | Nitrate pollution has become a serious problem for many years in many rivers of the world. Differentiation of various nitrate sources and knowledge of nitrogen cycling processes occurring in river systems are very important to establish suitable methods for controlling nitrate pollution. Since δ15N and δ18O values vary in different sources of nitrate, more and more researchers attach great importance to the application of nitrogen and oxygen isotopes in riverine nitrate studies. This review summarizes recent trends in the study of distinguishing different sources of nitrate (atmospheric deposition, fertilizer, animal waste, nitrification in soils, etc.) and tracing nitrogen cycling processes, especially denitrification, in river systems by the means of isotope analysis of nitrate. The review also gives a discussion on the study of nitrate in Chinese rivers and proposes some prospects for further studies. |
| Keywords: | River Nitrate N isotope O isotope |
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