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CH4 是大气中的重要微量气体 ,对全球变暖和大气化学有重要作用。海洋是大气甲烷的重要源和汇。开展海洋中溶存甲烷的研究 ,有助于了解海洋对大气甲烷和全球变化的贡献。综述了海洋中溶存甲烷的研究现状 ,着重介绍了海洋中溶存甲烷的分布特征、海气交换通量的估算及其生物地球化学循环 ,并探讨了该领域研究中存在的问题。
CH4 is an important trace gas in the atmosphere and plays an important role in global warming and atmospheric chemistry. The ocean is an important source and sink of atmospheric methane. Research on dissolved methane in the oceans will help to understand the contribution of oceans to atmospheric methane and global changes. The current research status of dissolved methane in the ocean is reviewed. The distribution characteristics of dissolved methane in the ocean, the estimation of the ocean-gas exchange flux and its biogeochemical cycles are emphatically introduced. The existing problems in this field are also discussed.