稳定同位素技术在环境水体氮的生物地球化学循环研究中的应用

南京大学学报(自然科学版) ›› 2016, Vol. 52 ›› Issue (1): 16–26.

稳定同位素技术在环境水体氮的生物地球化学循环研究中的应用

李荣富1,2，罗跃辉 ,2，曾洪玉1,2，阮晓红1,2*，刘丛强3*

出版日期:2016-01-27 发布日期:2016-01-27
作者简介:（1. 南京大学表生地球化学教育部重点实验室，南京，210046；2. 南京大学地球科学与工程学院水科学系，南京，210046）
基金资助:
?基金项目:国家自然科学基金重点项目(41230640),国家水体污染控制与治理科技重大专项(2012ZX07204-003)
收稿日期:2015-12-26
*通讯联系人,E-mail:ruanxh@nju.edu.cn,liucongqiang@vip.skleg.cn

Application of stable isotopes on the biogeochemical cycle of nitrogen in environmental water

Li Rongfu1,2,Luo Yuehui1,2,Zeng Hongyu1,2,Ruan Xiaohong1,2* ,Liu Congqiang3*

Online:2016-01-27 Published:2016-01-27
About author:(1.Department of Water Science,School of Earth Sciences and Engineering, Nanjing University,Nanjing,210023,China;2.MOE KeyLaboratory of Surficial Geochemistry, Nanjing University,Nanjing,210023,China;3.State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang,550002,China)

摘要/Abstract

摘要： 氮的生物地球化学循环是地表环境中最复杂的物质循环之一。近年来，稳定同位素技术在氮的生物地球化学循环研究中得到了广泛应用，极大地丰富了人们对氮的来源、物理迁移及其生物地球化学循环等过程的认识，完善了氮的生物地球化学循环理论体系。本文综述了在环境水体中应用稳定同位素示踪技术及统计模型，对氮的溯源研究从定性识别到定量解析的拓展；应用稳定同位素分馏理论及同位素配对技术，对氮的生物地球化学循环转化途径的判别及其转化速率的定量解析；重点提出应进一步开展不同转化途径、不同水体环境要素对氮同位素分馏特征的影响研究，逐步完善环境水体氮循环同位素分馏理论体系。

Abstract: The nitrogen cycle is one of the most complicated biogeochemical cycles in the aqueous environment. Stable isotope techniques have been widely applied in the study of the biogeochemical cycle of nitrogen. These studies have greatly enriched our understanding of sources, migrations and biogeochemical cycles of nitrogen and completed the theoretical system of the biogeochemical cycle of nitrogen. Here, we review the research of nitrogen sources which has been extended from the qualitative identification to the quantitative apportionment based on stable isotope trace techniques and statistical methods, and the study of the biogeochemical cycle of nitrogen which has been extended from qualitative identification to the quantitative estimation of transformation processes according to the isotope fractionation in the nitrogen cycle and the isotope pairing technique. And we propose that the further study should be focused on the influence of variable nitrogen transformation processes and diverse environmental factors on isotope fractionation characters of nitrogen and theory of isotope fractionation of aqueous nitrogen should be gradually completed.

李荣富1,2，罗跃辉 ,2，曾洪玉1,2，阮晓红1,2*，刘丛强3*. 稳定同位素技术在环境水体氮的生物地球化学循环研究中的应用[J]. 南京大学学报(自然科学版), 2016, 52(1): 16–26.

Li Rongfu1,2,Luo Yuehui1,2,Zeng Hongyu1,2,Ruan Xiaohong1,2* ,Liu Congqiang3*. Application of stable isotopes on the biogeochemical cycle of nitrogen in environmental water
[J]. Journal of Nanjing University(Natural Sciences), 2016, 52(1): 16–26.

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