【摘要】 本文通过总结国内外大气甲烷源汇研究的最新进展，论述了全球大气甲烷的源汇平衡预算及其不确定性，给出了全球及中国大气甲烷源汇预算的最新成果，并指出了今后的研究方向和重点．更多还原

【Abstract】 The paper presented a summary of the latest advances in researches on sourcesand sinks of the atmospheric mathane. the emphasis has been put on the mechanisms of CH4 production in various sources and on the tremendous uncertainties existing in its global budget. Anew inventory of atmospheric mathane is given.更多还原