There is a barrier between reservoir and atmospheric water of basin margin forming reducing environment with low sulphate which is favorable to methanebacteria activity.
储层与盆地边缘大气水渗滤带隔绝，形成了低硫酸盐的还原环境，有利于甲烷菌活动。
2
The organic material will be anaerobic decomposed by methanebacteria when municipal solid waste (MSW) is processing in landfills, thus methane will be emitted to the atmosphere.