Darmawan, Dwi Putro.Tejo Baskoro and Budi Nugroho
Proceedings of the 14th International Peat Congress
compaction, emission, peatlands, subsidence
Theme IX. Tropical peatlands
Land subsidence will always take place when peatlands are drained. The subsidence is often used in predicting Carbon emission from the lands. One year subsidence monitoring as well as measurement of bulk density and size fractions of the organic materials was carried out at several sites of peatlands in Sumatra used for Accacia crassicarpa plantation. The subsidence rate during the year was found to be uncertain since the land surfaces were found to alternately rise and down. Peat materials above the water table are dominated by fine fractions that in general corresponded with higher bulk density but the higher bulk density is difficult to be straightforwardly interpreted as an indication of compaction, because it depends on the historical change of the peatlands.