Annual changes in the area of drained peatland are es mated using the INCAS Land Cover Change Analysis outputs and land management informa on. Annual areas of peatland burnt and the frequency of fires (Figure 2) are es mated using MODIS hotspot data, corrected by Landsat and LiDAR burn scar data.

Total annual GHG emissions for 2001-2012 are es mated by mul plying the area affected by drainage and fires by ac vity specific emission factors (EFs) derived from the IPCC 2013 Wetlands Update, supplemented by peat fire data from studies in Indonesia.

GHG emissions from biological oxida on and peat fires across Indonesia’s peatlands are es mated using a Tier 2 methodology (Figure 1), incorpora ng spa al and non-spa al data inputs.

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Total emissions from peat fires

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Figure 2. Annual Peat Fires In Indonesia 2001-2012 Figure 3. Annual es mates of GHG emissions from peat fires in Indonesia for the period 2001 to 2012

Significant annual varia ons in GHG emissions from peat fires occurred across Indonesia throughout 2001-2012 (Figure 3).

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Aboveground (tCO2-eq)Belowground (tCO2-eq)Li er (tCO2-eq)Deadwood (tCO2-eq)CH4 emissions from forest fire (tCO2-eq)N2O emissions from forest fire (tCO2-eq)Mineral soil (tCO2-eq)Peat fire (tCO2-eq)Peat Biological Oxida on (tCO2-eq)

Total Net GHG

Emissions 2001-2012

Figure 4. Total net GHG emissions es mates from forests and peatland in Indonesia

Results

Figure 1. Overview of INCAS peat fire GHG emissions es ma on approach

Methods

PEATLANDS COMPONENT – NATIONAL GHG INVENTORY

Ministry of Environment and ForestryRepublic of Indonesia

Indonesia’s forest and land use sectors have tradi onally been considered as a significant contributor to global greenhouse gas (GHG) emissions. However, es mates of their total contribu on have always been uncertain. The Indonesian Na onal Carbon Accoun ng System (INCAS) has been developed to be er account for these net emissions.

This poster summarises the methodology and results for monitoring net GHG emissions from peatland fire and biological oxida on 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 oxida on 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