基于CiteSpace的土壤甲烷研究热点可视化分析

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关键词土壤 CH4 ;温室气体；生物炭；土壤固碳;CiteSpace

中图分类号 S-058 文献标识码A

文章编号 0517-6611（05）1-044-09

doi：10.969/j. issn.0517-6611.2025.21.046

Abstract Methane（ CH4 ）is the second most significant greenhouse gas following carbon dioxide （ CO2 ）.Asan important part of the global carbon cycle system，soil greenhouse gas CH4 playsa key role in the feedback linkage mechanism between soil carbon pool and climate change，andhasecomeafrotierhotspotintefieldofgloballatechangeresearchblometricaalysisasusedtouderstandthedy namics and trends of soil CH4 research at home andabroad 2816 and3 O12 relevant articles from China National Knowledge Infrastructure （CNKI）andWebofSenceCoreCllction（WSCC）databasesfrom2oto23werecoletedrespectively.Byaalyzingthbrof publications，frcyistrifechsitioseachotsotsdvelopttdserfl CH4 research wassysteaticallsummaredandsortedout.Thersultsshowdthatsinceo，teumberofpublishdpapersathoeandbroadsfluc tuated，with an average annual number of 253.39，indicating that soil CH4 research has gradually become a hotspot.The most frequently cited Chineseliterature is Research Progresson Source/Sink Intensityand Greenhouse Effect of Major Greenhouse Gases （CO2，CH4，N2O） in FarmlandSoil，itissttlyidgisotasroductioidssodsoofey soils：Arevie，ithafreqncyf14tis.Chin’sienticsearchistitutiosndesearchrshaveaigdegeofctivitdtensiveooperationnetworkintisfeldandareteainontributorstoCinesendEglishiterature，fringacoreandlosacademic community.Research hotspots include soil CH4 production and oxidation mechanisms，emissions and consumption，ecosystem functions in paddy fields，and its relationship with climate change.The research trend has gradually shifted from the study of soil CH4 emissions in farmland ecosystemstotheuseofocharforsoilcarbonsequestrationandemsionreductionandtherelatioshipbetwenbocharandclimatechange.Future research shouldstrengthen the impactof soil grenhouse gasesonsoil grenhouse gasesand therelationship betwen soil CH4 and carbon cyeleinthecontextofclimatechange，deeplyexplorethepotentialofsoilcarbonsinks，and helpachievethedualcarbon goals.

Key words Soil CH4 ; Greenhouse gas; Biochar;Soil carbon sequestration;CiteSpace

全球气候变暖是21世纪人类面对的重大挑战之一，2023年成为有气象记录以来气温最高的一年，全球近地表平均温度比工业化前（1850—1900年）平均水平高出（ 1.45± 0.12∘C ）[1]。（剩余15597字）