氮的地球生物学循环:生物与地质演化的耦联  

Geobiological cycling of nitrogen:coupled evolution of biology and geology

作　　者：罗根明[1,2] LUO Gen-ming(State Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences(Wuhan),Wuhan 430074,China;School of Earth Sciences,China University of Geosciences(Wuhan),Wuhan 430074,China)

机构地区：[1]中国地质大学(武汉)生物地质与环境地质国家重点实验室,武汉430074 [2]中国地质大学(武汉)地球科学学院,武汉430074

出　　处：《矿物岩石地球化学通报》2024年第5期897-911,I0001,共16页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国家自然科学基金重大项目(42293292);国家自然科学基金创新群体项目(41821001);111项目(BP0820004)。

摘　　要：氮的地球生物学循环是氮的生物地球化学循环与地质循环的耦合,是探讨生物与环境相互作用,进而了解地球系统演化的重要窗口。大气中氮气分压(pN_(2))是认识氮的地球生物学循环的重要抓手,也是地外生命探测的潜在生命标识。因而,深入认识pN_(2)的地质演化具有重要意义。本文围绕深时大气pN_(2)的变化,简要总结了地球上主要的氮储库特征,从氮的生物地球化学循环和氮的地质循环两方面探讨了氮的地球生物循环过程、影响因素、可能的演化阶段,总结了当前对深时pN_(2)变化总体过程及影响因素的认识,提出了未来亟需解决的一些关键科学问题。The geobiological cycle of nitrogen is a coupling of the biogeochemical and geological cycles of nitrogen,which provides insights into the interactions between life and the environment and the evolution of Earth systems.The partial pressure of atmospheric nitrogen(pN_(2))is a principal proxy for understanding the evolutionary history of the global geobiological cycle of nitrogen,and is also a potential biosignature of extraterrestrial life detection,Thus,it is of great significance to reconstruct the geological evolution of pN_(2),In this article,the primary nitrogen reservoirs on Earth are summarized,and the processes,affecting factors and evolutionary stages of the nitrogen geobiological cycle are discussed from the perspective of nitrogen biogeochemical and geological cycles.On this basis,this article further reviews the current knowledge of the evolutionary history of pN_(2),and its possible influencing factors.Finally,I raise some key issues that have to be addressed in the future.

关 键 词：大气氮分压 pN_(2) 生物地球化学 地幔氧逸度 氮代谢 地质微生物功能群 

分 类 号：P595[天文地球—地球化学]