氮氧同位素在城市地表水硝酸盐来源解析的应用进展  

Progress on the Application of Nitrogen and Oxygen Isotopes in the Study of Nitrate Sources in Urban Rivers

作　　者：任玉芬[1] 贺成武 王效科[1] 欧阳志云[1] 

机构地区：[1]中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京 [2]河南理工大学资源环境学院,焦作

出　　处：《地球科学前沿（汉斯）》2012年第4期183-186,共4页Advances in Geosciences

基　　金：国家自然科学基金项目(41030744,41230633,40901265);中国科学院知识创新项目(KZCX2-EW-310).

摘　　要：地表水硝酸盐污染造成了地表水体富营养化和水质恶化等的生态环境问题,确定地表水中硝酸盐的来源并加以控制显得尤为重要。利用不同成因的地表河流硝酸盐的δ15N和δ18O存在着较大差异,将氮、氧稳定同位素示踪技术用于河流硝酸盐来源解析的研究日益受到研究者的广泛关注。本文综述了利用氮、氧同位素来研究地表水硝酸盐不同来源的研究进展,总结归纳了不同硝酸盐氮来源的δ15N和δ18O分布范围,并展望了未来我国地表水硝酸盐来源示踪的可能发展方向。Nitrate pollution has caused serious eco-environmental problems in surface waters. For controlling nitrate pollution, it is necessary to differentiate various nitrate sources using suitable methods. Since δ15N and δ18O values vary greatly in different sources of nitrate, more and more researchers pay great attention on the application of nitrogen and oxygen isotopes in surface water nitrate tracing studies. This review summarizes recent trends in the study of distin- guishing different sources of nitrate in surface waters by means of isotope analysis of nitrate and oxygen. And it also gives a prospect on the study of nitrate tracing in Chinese surface waters.

关 键 词：地表水 硝酸盐污染 氮氧同位素 来源示踪 

分 类 号：X5[环境科学与工程—环境工程]