近来沿日本海岸南海海槽近海取心采集到样品 ,以确定海洋沉积物中与不同深度有关的微生物的数量和类型。本项研究的目的是建立更为清晰的原地条件下微生物在气水合物中甲烷生产及其分布中的作用模型。采获样品的水深９５０ｍ。３２块微生物岩心采自海底以下１６０～３１３ｍ处 Recently, samples were collected along the coast of the South China Sea trough offshore Japan to determine the number and type of microorganisms associated with different depths in marine sediments. The purpose of this study was to establish a clearer model of the role of microorganisms in the production and distribution of methane in gas hydrates in situ. The depth of the sample taken 950m. 32 microbial cores were collected from 160 to 313 m below the seabed