大气环境中二甲基硫的研究进展

Research progress on dimethyl sulfur in atmospheric environment

二甲基硫(DMS)作为大气环境中较为活跃的有机硫气体,是全球硫循环的主要驱动成分,并在气候变化中产生重要的负温室效应。本研究整理、归纳了大气环境中DMS的国内外研究进展,并以Web of Science为数据库,分别以"dimethyl sulfide"和"air","dimethyl sulfide"和"atmosphere","dimethyl sulfide"和"atmospheric"为关键词,搜索1900-2020年国内外发表的文献,并运用文献计量学的方法对1997篇文献进行研究动态分析,结果表明:1)已有研究主要集中在海洋浮游植物和细菌产DMS的过程、全球DMS海、气通量的模型估算、大气中DMS的消除途径及其氧化产物的辐射效应等问题上;2)全球变暖的趋势下,对DMS海洋源响应过程的关注度逐渐提高;3)非海洋地区DMS的来源及排放量认识尚不全面,且随着社会经济的发展,以往的研究有可能低估DMS非海洋源的贡献及其环境影响。探究全球气候变暖对DMS释放过程的影响及量化分析DMS非海洋源的贡献,是未来深入探究的方向。

As a kind of reactive volatile sulfur compound,dimethyl sulfur(DMS)plays a vital role in global sulfur cycle and has a negative greenhouse effect in climate change.This study summarized domestic and foreign research progress of DMS in atmospheric environment and retrieved 1 997 literatures published from 1900 to 2020 in Web of Science core collection for bibliometric analysis,with the keywords of "dimethyl sulfide"and "air","dimethyl sulfide"and"atmosphere","dimethyl sulfide"and "atmospheric",respectively.The results showed that:1)Studies over past decades was focused on the formation and environmental impact of DMS in marine areas,including DMS production by marine phytoplankton and bacteria,model estimation of global DMS sea-air flux,ways to eliminate DMS and radiation effect of its oxidation products.2)The impact of global warming on DMS emission has gradually become a focus of attention.3)The sources and emissions flux of DMS in non-marine areas were not very clear.The contribution of nonmarine sources of DMS and its environmental impact with the development of economy.The impact of global warming on DMS release process and the quantifying of the contribution of non-marine sources DMS are issues worthy of further attention in the future.