海洋地质与第四纪地质2024，Vol.44Issue(6)：82-95,14.DOI:10.16562/j.cnki.0256-1492.2023123001
海洋沉积体系甲烷生物地球化学循环的微量元素地球化学示踪研究进展
Advancements in studying the biogeochemistry of methane in marine depositional systems through trace element geochemistry
摘要
Abstract
The habitable planet,shaped by geological processes and microbial activity,is currently threatened by global warming.Methane,as an important greenhouse gas,is responsible for 20%of global warming.The largest amount of methane on the Earth is found in marine sediment.In these methane-rich marine environments,microbial process such as methanogenesis,anaerobic methane oxidation,and aerobic methane oxidation play a crucial role.In this review,the methane cycle mediated by enzymes or coenzymes containing trace elements was analyzed from the perspective of geological microbiology,the potential trace element demand of microorganisms was examined,and the geochemical evidence of trace elements and isotopes that primarily related to the study of the marine methane cycle in recent years were emphasized.At present,the pure culture of microorganisms involved in the methane cycle presents challenges,and to accurately describe biogeochemical processes in geochemical research is difficult.Therefore,interdisciplinary research that combines microbiology and geochemistry offers clear advantages and promising prospects.Understanding the interplay between microbial activities and trace elements in marine methane-rich environments is crucial for investigating the marine methane cycle and regulating global methane emissions in the context of current global warming.Additionally,this knowledge is anticipated to offer a distinctive vantage point for analyzing historical methane emission events and their global ecological/environmental impacts.关键词
海洋沉积体系/甲烷循环/微生物活动/微量元素Key words
marine depositional systems/methane cycle/microbial activity/trace elements分类
海洋科学引用本文复制引用
王旭东,庄光超,冯东..海洋沉积体系甲烷生物地球化学循环的微量元素地球化学示踪研究进展[J].海洋地质与第四纪地质,2024,44(6):82-95,14.基金项目
国家自然科学基金(42106059) （42106059）
上海市青年科技英才"扬帆计划"(21YF1416800) （21YF1416800）
上海市教育发展基金会和上海市教育委员会"晨光计划"(22CGA58) （22CGA58）
