Importance of CO2 production in subsoil layers of drained tropical peatland under mature oil palm plantation

Expansion of oil palm (Elaeis guineensis Jacq.) plantations in tropical peatlands is always followed by a lowering groundwater level, which exposes peat to oxidic condition and releases large amounts of carbon dioxide (CO2) to atmosphere. This study is concerned with decomposition of organic matter in the soil profile of tropical peatland under oil palm plantation. For 2 years, CO2 fluxes were measured from the soil surface (CO2-efflux) and from...