摘要
甲烷(CH_(4))是一种增温效应极强的温室气体。在百年时间尺度上,其增温潜势是二氧化碳(CO_(2))的34倍。湿地是重要的甲烷源,大气中有20%~25%的甲烷来源于湿地生态系统。微生物驱动的甲烷氧化是一种重要的减少甲烷排放的过程。反硝化型甲烷厌氧氧化(denitrifying methane anaerobic oxidation,DAMO)是湿地中一种重要的甲烷氧化过程,也是减少湿地甲烷排放的重要过程之一。本文综述了反硝化型甲烷厌氧氧化过程的发现、研究历程、微生物机理和湿地生态系统中相关微生物的分布格局及其影响因素。同时,本文还探讨了甲烷厌氧氧化对湿地甲烷排放的抑制作用,以及其在生态系统中的重要性和对全球气候变化的影响。本文对深入理解湿地中甲烷氧化过程的机制和生态学意义具有重要价值,也可以为湿地管理和温室气体减排提供科学依据。
Methane(CH_(4))is an important greenhouse gas with a global warming potential 34 times higher than carbon dioxide(CO_(2))over a century.Wetlands are important sources of methane,contributing approximately 20%-25% of atmospheric methane.Microbially mediated methane oxidation plays a crucial role in mitigating meth⁃ane emissions,particularly through the denitrifying methane anaerobic oxidation(DAMO).We reviewed the discovery,research progress and microbial mechanisms of DAMO,as well as the distribution patterns and influencing factors of DAMO relevant microorganisms in wetlands.Moreover,this review explores the inhibitory effects of meth⁃ane anaerobic oxidation on methane emissions from wetlands,emphasizing its importance in ecosystems and its significance to the global climate change.This review provides valuable insights for a comprehensive understanding of the mechanism and ecological significance of methane anaerobic oxidation in wetlands,and serves as a scientific ba⁃sis for wetland management and greenhouse gas mitigation.
作者
朱灵童
张弘杰
曾巾
赵大勇
ZHU Lingtong;ZHANG Hongjie;ZENG Jin;ZHAO Dayong(The National Key Laboratory of Water Disaster Prevention,Hohai University,Nanjing 210098,China;State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,China;College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China;College of Geography and Remote Sensing,Hohai University,Nanjing 211000,China)
出处
《生态学杂志》
北大核心
2025年第6期2074-2082,共9页
Chinese Journal of Ecology
基金
国家自然科学基金项目(U23A20153和32171563)
江苏省碳专项前沿基础项目(BK20220015)
中国科学院南京地理与湖泊研究所青年科学家小组项目(2021NIGLAS-CJH01)资助。
关键词
温室效应
反硝化型甲烷厌氧氧化
碳循环
氮循环
微生物群落
功能基因
greenhouse effect
denitrifying methane anaerobic oxidation
carbon cycle
nitrogen cycle
microbial community
functional gene
作者简介
通信作者:赵大勇,E-mail:dyzhao@hhu.edu.cn;朱灵童,男,1999年生,硕士研究生,主要研究方向为湿地碳氮循环过程。E-mail:zhult_hhu@163.com。
