Authors:
Siti Sundari, Takashi Hirano and Hiroyuki Yamada
Book:
Proceedings of the 15th International Peat Congress
Venue:
Kuching
Keywords:
carbon-loss, dissolved-organic-carbon, drainage, soil-respiration, tropical-peatlands
Documentfile:
ipc16p269-273a049sundarihirano.etal_.pdf
Summary:
SUMMARY
Effect of drainage on the carbon loss from soil ecosystems in tropical peatlands had been conducted at two tropical peat swamp forests in Central Kalimantan, undrained forest (UF) and drained forest (DF) sites from July 2010 to December 2011. Carbon loss was assessed by the summation of soil respiration (RS) and groundwater dissolved organic carbon (DOC) flux. Field data in 2004 and 2005 were used to make an empirical model to calculate RS from July 2010 to December 2011, while DOC flux through groundwater from July 2010 to December 2011 was calculated by multiplying groundwater DOC concentration by groundwater flux. Cumulative RS at the UF and DF sites were estimated at 599 and 640 gC m-2, respectively, for six months in 2010. Annual RS in 2011 at the UF and DF sites were 1427 and 1256 gC m-2 y-1, respectively. Cumulative groundwater DOC flux at the UF and DF sites…