Peat soil carbon monitoring and management in Indonesia (original) (raw)

The high carbon (C) stock of 14.9 million ha of Indonesian peatland is greatly affected by land use change and land management systems. This research was aimed at estimating C stock and C dynamics related to land use change and management systems. The country’s peat soil C stock is 22.7±6.8 Pg (mean ± stdev.) as estimated using mean peat depth of 246±232 cm and C density of 617±184 Mg (ha.m). Site level peat C loss was monitored using peat subsidence data and heterotrophic respiration : subsidence (H/S) ratios of 40% for non compacted peat and 60% for compacted peat. Overall mean subsidence rate for drained peat was 4.08±1.75 cm yr and mean annual peat C loss was 11.17±1.42 Mg ha. Using the IPCC (2014) emission factor default values, and historical land use change, annual C loss of Indonesia’s peatland was around 76.3 Tg in 2000-2003 period. If the business as usual (BAU) land use change trajectories continues, peat C loss could reach 123.9 Tg in 2024-2033 period. Our mitigation sce...

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