Guan Xhuan WongRyuichi HirataTakashi HiranoFrankie KiewaEdward Baran AeriesKevin Kemudang MusinJoseph Wenceslaus WailiKim San LoLulie Melling2024-05-142024-05-142018Wong, G. X., Hirata, R., Hirano, T., Kiew, F., Aeries, E. B., Musin, K. K., ... & Melling, L. (2018). Micrometeorological measurement of methane flux above a tropical peat swamp forest. Agricultural and Forest Meteorology, 256, 353-361.https://repoemc.ukm.my/handle/123456789/698Owing to the huge soil carbon stock and high groundwater level (GWL), tropical peatlands potentially represent a significant source of methane (CH4) to the atmosphere. However, a few studies of CH4 flux by the soil chamber technique have reported that annual CH4 emissions from tropical peat swamp forest were very low as compared to mid- and high-latitude peatlands. Recently, it has been reported that some tree species growing in peat swamp forest emit CH4 from their stems. It is impossible to continuously measure ecosystem-scale CH4 flux including both soil and plant-mediated CH4 emissions by the chamber technique. Thus, we have measured net ecosystem CH4 exchange (FCH4) above a tropical peat swamp forest in Sarawak, Malaysia using the eddy covariance technique from February 2014 to July 2015 (18 months).Annual emissionsEddy covariance techniqueGroundwater levelMethane sourceSoil moistureSoutheast AsiaJournal