A total of 30.5 million rural households gained access to bio-gas, equivalent to a reduction of 49 million tons of carbon dioxide emissions.
农村有3050万户用上沼气，相当于少排放二氧化碳4900多万吨。
Taking the bio-compost as landfill cover can oxidize methane more effectively than traditional soil cover layer, and maybe a latent technology for landfill methane emission reduction.
垃圾填埋场覆盖层土壤具有一定的甲烷氧化功能，土壤特性、环境条件影响甲烷氧化能力。
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