湖泊生态系统中微生物驱动氮-铁耦合反应研究进展  

Research progress in the microbially catalyzed reactions associated with coupled nitrogen and iron transformation in lake ecosystems

作　　者：冯旗 李晨希 胡娜 李术艺 何宇 李泳哲 郭天赐 胡文龙 董依然 FENG Qi;LI Chenxi;HU Na;LI Shuyi;HE Yu;LI Yongzhe;GUO Tianci;HU Wenlong;DONG Yiran(School of Environmental Studies,China University of Geosciences(Wuhan),Wuhan 430078,China;Wuhan Changjiang KECHUANG Technology Development Co.,Ltd.,Wuhan 430014,China;State Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences(Wuhan),Wuhan 430078,China)

机构地区：[1]中国地质大学(武汉)环境学院,湖北武汉430078 [2]武汉长江科创科技发展有限公司,湖北武汉430014 [3]中国地质大学(武汉)生物地质与环境国家重点实验室,湖北武汉430078

出　　处：《安全与环境工程》2024年第1期271-281,290,共12页Safety and Environmental Engineering

基　　金：国家自然科学基金项目(2021043180、2019043164)。

摘　　要：由于人类活动的影响,许多湖泊面临着氮(N)素富集引起的富营养化问题,这影响了湖泊生态系统的氮平衡和生态功能。系统地阐述了湖泊生态系统中微生物利用硝态氮和广泛分布的铁所驱动的氮-铁耦合脱氮过程,重点梳理了微生物参与的反硝化、异化硝酸盐还原成铵和厌氧氨氧化与铁耦合过程研究的最新进展,并说明了Fe(Ⅱ)与Fe(Ⅲ)的氧化还原循环可以持续支持与含氮化合物的反应。深入理解微生物驱动的氮-铁耦合机理,有助于认识其对湖泊内源脱氮等方面的生态和环境问题的贡献。Due to anthropogenic interference,many lakes have faced eutrophic problems caused by excessive nitrogen(N),which affects the nitrogen balance and ecological functions of lake ecosystems.This review article systematically describes the potential nitrogen removal processes coupling nitrogen and iron in lake ecosystems,which are catalyzed by the microorganisms utilizing nitrogen-containing compounds and widely distributed iron,with foucus on the latest progress in denitrification,dissimilatory nitrate reduction to ammonium(DNRA),and anammox coupling iron(Fe),and illustrates the redox cycle of Fe(Ⅱ)and Fe(Ⅲ)that can continuously support the reaction with nitrogen-containing compounds.In-depth understanding of the mechanisms of nitrogen-iron transformation driven by microorganisms will facilitate the understanding about their contributions to a series of environmental and ecological issues such as endogenous nitrogen removal in lakes.

关 键 词：湖泊生态系统 微生物 氮-铁耦合 依赖硝酸盐还原的铁氧化 铁氧化耦合异化硝酸盐还原成铵 铁氨氧化 

分 类 号：X172[环境科学与工程—环境科学]