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Annual changes in the area of drained peatland are esƟmated using the INCAS Land Cover Change Analysis outputs and land management informaƟon. Annual areas of peatland burnt and the frequency of fires (Figure 2) are es Ɵmated using MODIS hotspot data, corrected by Landsat and LiDAR burn scar data. Total annual GHG emissions for 2001-2012 are es Ɵmated by mulƟplying the area aff ected by drainage and fires by acƟvity specific emission factors (EFs) derived from the IPCC 2013 Wetlands Update, supplemented by peat fire data from studies in Indonesia. GHG emissions from biological oxidaƟon and peat fires across Indonesia’s peatlands are es Ɵmated using a Tier 2 methodology (Figure 1), incorporaƟng spaƟal and non-spaƟal data inputs. 0 50 100 150 200 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 O C t ( s n o i s s i m E 2 -eq) Millions Year Total emissions from peat fires CH 4 CO 2 Figure 2. Annual Peat Fires In Indonesia 2001-2012 Figure 3. Annual esƟmates of GHG emissions from peat fires in Indonesia for the period 2001 to 2012 Significant annual variaƟons in GHG emissions from peat fires occurred across Indonesia throughout 2001-2012 (Figure 3). 28% 5% 2% 21% 2% 0% 5% 7% 30% Aboveground (tCO 2 -eq) Belowground (tCO 2 -eq) LiƩer (tCO 2 -eq) Deadwood (tCO 2 -eq) CH 4 emissions from forest fire (tCO 2 -eq) N 2 O emissions from forest fire (tCO 2 -eq) Mineral soil (tCO 2 -eq) Peat fire (tCO 2 -eq) Peat Biological OxidaƟon (tCO 2 -eq) Total Net GHG Emissions 2001 -2012 Figure 4. Total net GHG emissions esƟmates from forests and peatland in Indonesia Results Figure 1. Overview of INCAS peat fire GHG emissions es ƟmaƟon approach Methods PEATLANDS COMPONENT – NATIONAL GHG INVENTORY Ministry of Environment and Forestry Republic of Indonesia Indonesia’s forest and land use sectors have tradiƟonally been considered as a significant contributor to global greenhouse gas (GHG) emissions. However, es Ɵmates of their total contribuƟon have always been uncertain. The Indonesian NaƟonal Carbon AccounƟng System (INCAS) has been developed to beƩer account for these net emissions. This poster summarises the methodology and results for monitoring net GHG emissions from peatland fire and biological oxidaƟon under phase one of the INCAS. High emissions from peat fires in 2002 and 2006 contributed significantly to the elevated emissions from peatlands in those years. Riau, Central Kalimantan and South Sumatra contributed more than 70% of the total GHG emissions from peat fires in Indonesia. GHG emissions from the biological oxidaƟon of peatlands was the largest single source of emissions (Figure 4). This reflects the large areas of peatlands cleared and subsequently drained in the years prior to the analysis period. Supported by: Full details of the INCAS methods and results are available at: www.incas-Indonesia.org
