氮稳定同位素技术在陆地生态系统氮循环研究中的应用  

Applications of nitrogen stable isotope techniques in the study of nitrogen cycling in terrestrial ecosystems

作　　者：方运霆[1,2,3] 刘冬伟 朱飞飞[1,2,3] 图影[1,3,4] 李善龙 黄韶楠 全智[1,2,3] 王盎 FANG Yun-Ting;LIU Dong-Wei;ZHU Fei-Fei;TU Ying;LI Shan-Long;HUANG Shao-Nan;QUAN Zhi;WANG Ang(Key Laboratory of Forest Ecology and Management,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016;Qingyuan Forest CERN,Chinese Academy of Sciences,Shenyang 110016 China;Key Laboratory of Stable Isotope Techniques and Applications,Liaoning Province,Shenyang,110016;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院沈阳应用生态研究所森林生态与管理重点实验室,沈阳110016 [2]中国科学院清原森林生态系统观测研究站,沈阳110016 [3]辽宁省稳定同位素实验室,沈阳110016 [4]中国科学院大学,北京100049

出　　处：《植物生态学报》2020年第4期373-383,共11页Chinese Journal of Plant Ecology

基　　金：国家重点研发计划(2016YFA0600802);国家自然科学基金(41773094);中国科学院前沿科学重点研究项目(QYZDB-SSW-DQC002);中国科学院卢嘉锡国际团队项目(GJTD-2018-07)。

摘　　要：在过去几十年中,氮(N)稳定同位素技术的发展提高了人们对于陆地生态系统氮循环的认识。该文回顾了氮稳定同位素技术在研究生态系统氮循环中的历史,综述了最近十多年来氮稳定同位素技术在陆地生态系统氮循环研究中的典型案例,包括利用氮同位素自然丰度鉴定植物氮来源、指示生态系统氮状态和量化过程速率,利用15N标记技术示踪氮的去向和再分布等。该文同时指出这些应用中存在的问题,以及在陆地生态系统上氮稳定同位素技术今后研究的重点发展方向。In the past several decades,the development of nitrogen(N)stable isotope techniques has improved the understanding of N cycling in terrestrial ecosystems.This review briefly introduced the history of N stable isotope techniques in studying N cycling in terrestrial ecosystems and summarized typical studies focusing on different aspects of ecosystem N cycling in recent years,including using 1)15N natural abundance to identify plant N sources,indicate N status of ecosystems,and quantify N transformation rates;2)15N enriched tracers to study N fates,redistribution and gaseous loss from ecosystems.In the end,this review points out challenges and future applications of N stable isotope techniques on studying N cycling in terrestrial ecosystems.

关 键 词：氮稳定同位素技术 自然丰度技术 15N标记技术 

分 类 号：Q948[生物学—植物学]