| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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| Outline of Final Research Achievements |
Methane emissions from mires and wetlands are a major natural source in the global budget of atmospheric methane. A large fraction of these emissions result from diffusive methane emission from the surface of sediments and/or snow. Methane is typically produced by methanogens in anoxic peat sediments and oxidized in the oxic surface, but still unknown in the snow on the peat sediments. Reddish-brown colored snow so called “Akashibo”, containing spherical brown particles has been observed in Ozegahara mire at the time of melting snow. This study clarified that the microbial consortia consisted of methanotrophs, methylotrophs and iron-metabolizing bacteria. Such microbial consortia in snow may contribute to the consumption of methane to reduce the emission into the atmosphere at the time of melting snow.
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