Abstract
Abstract BACKGROUND: Forest soils contain microbes capable of consuming atmospheric methane (CH 4 ), an amount matching the annual increase in CH 4 concentration in the atmosphere. However, the effect of plant residue production by different forest structure on CH 4 oxidation is not studied in Korea. The objective of this study was to evaluate the effect of Korean alpine soils having different forestation structure on CH 4 uptake rates. METHODS AND RESULTS: the CH 4 flux was measured at three sites dominated with pine, chestnut and oak trees in southern Korea. The CH 4 uptake potentials were evaluated by a closed chamber method for a year. The CH 4 uptake rate was the highest in the pine tree soil (1.05 mg/m 2 /day) and then followed by oak (0.930 mg/m 2 /day) and chestnut trees (0.497 mg/m 2 /day). The CH 4 uptake rates were highly correlated to soil organic matter and moisture contents, and total microbial and methanotrophs activities. Different with the general concent, there was no any correlation between CH
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