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It is advantageous to use coarse soils as landfill cover because they allow better aeration of the biologically active zone. In this study, therefore, patterns of methane oxidation were investigated under various environmental conditions including soil moisture content, temperature, and the addition of NH₄ ⁺ in a sandy landfill cover soil. The kinetics of CH₄ oxidation was also studied at different moisture contents and temperatures. Soil moisture content of 10% (wt/wt) resulted in the maximum CH₄ oxidation rate (19.2-22.4 nmol g_{soil DW} ^-1 min^-1). A V _max value was not significantly different when the moisture content was more than 10%, but a K _m value increased from 5.23 to 75.24 μM as the moisture content increased. The ratio of V _max to K _m was the highest at 10% moisture content. The CH₄ oxidation rate increased as the incubation temperature increased, and Q …