水生态学杂志2024，Vol.45Issue(4)：1-8,8.DOI:10.15928/j.1674-3075.202404120126
同位素技术示踪水环境生源要素氮的来源及循环过程研究进展
Research Advances on Tracing the Source and Cycling Process of Nitrogen in Aquatic Environments Using Isotopic Techniques
摘要
Abstract
Nitrogen is an essential biogenic element in ecosystems,and plays important role in maintain-ing the quality of aquatic environment and the balance of ecological system.However,nitrogen pollution in water environments has been becoming increasingly severe,posing a global environmental challenge.In this article,we reviewed the research advances on study of nitrogen source analysis and cycling pro-cesses in water environments.First,we summarized the main sources of nitrogen in the aquatic environ-ments(including natural sources and anthropogenic sources),and discussed the spatiotemporal variation characteristics of nitrogen in water environments,emphasizing the impact of natural factors(such as rain-fall)and human activities(like sewage discharge and agricultural fertilization)on the distribution of nitro-gen.Then we elaborated the development of isotope technology in identifying the sources of nitrogen in the aquatic environment,which mainly went through three stages:the single isotope tracing phase,the du-al isotope tracing phase,and the multi-isotope combined tracing phase.Next,we discussed the application of isotopic techniques in the analysis of nitrogen cycling processes in water environments,including nitri-fication,denitrification,mineralization,and assimilation.Finally,we analyzed the shortcomings of current research and put forward the future development trend,especially in the potential combination of isotopic techniques and machine learning.关键词
生源物质/氮/溯源技术/迁移转化/同位素Key words
biogenic elements/nitrogen/source tracing techniques/migration and transformation/iso-topes分类
资源环境引用本文复制引用
任朝斌,王龙,张千千..同位素技术示踪水环境生源要素氮的来源及循环过程研究进展[J].水生态学杂志,2024,45(4):1-8,8.基金项目
河南省科技发展计划(242102321117) （242102321117）
南阳理工学院博士科研启动基金(NGBJ-2023-35) （NGBJ-2023-35）
国家自然科学基金(42377232). （42377232）
