The total area of tropical peatlands is estimated 0.5×10⁶ km², and half of them were located in Indonesia (Rieley 2001). Recently, a large area of them has been affected by wild fires (Page et al. 2002), and more than 1 million ha of tropical peatland in Central Kalimantan was reclaimed by the “Mega Rice Project” (Muhanmand and Riely 2002). CO₂, CH₄, and N₂O are important greenhouse gases (GHGs) (IPCC 2007). In general, CO₂ and N₂O are emitted from soils; on the other hand, soils function as both sink and source for CH₄ due to soil water condition. Microbiological processes regulate GHGs dynamics. Therefore, soil temperature, moisture, and fertilization affect the GHGs dynamics. Furthermore, GHGs were emitted associated with peat burning not due to microbiological processes. It was estimated that the amount of CO₂ released from burning in several reports, i.e. Page et al. (2002) and Hoscilo et al. (2011). However, there are a few studies about CH₄ and N₂O dynamics. In this presentation, I will show the seasonal changes in GHGs dynamics, especially CH₄ and N₂O, in relation to soil temperature, moisture, and wild fire.