Peatland in Mappi
Mappi has about 491.4 thousand ha of peatland on the Ministry of Agriculture's peat map, 19% of its area.
Depth and function
The Ministry of Environment and Forestry's 1:50,000 peat ecosystem function map covers 42.6 thousand ha of peat here. 2,012 ha is designated for protection, mostly because the peat is deeper than 3 metres, and 40.6 thousand ha for cultivation. The deepest peat on record here reaches 5.5 metres.
| Class | Area | Share |
|---|---|---|
| Shallow (0.5–1 m) | 19.8 thousand ha | 46.4% |
| Moderate (1–2 m) | 15 thousand ha | 35.1% |
| Deep (2–3 m) | 5,835 ha | 13.7% |
| Very deep (> 3 m) | 2,012 ha | 4.7% |
Peat hydrological units (KHG)
This area touches 10 peat hydrological units (KHG) with detailed boundaries. A KHG is one peat ecosystem between two rivers, or between a river and the sea, managed as a unit under Government Regulation 57/2016.
- KHG.91.17-16.01
- KHG.91.17-16.02
- KHG.91.17.01
- KHG.91.17.02
- KHG.91.17.04
- KHG.91.17.05
- KHG.91.17.06
- KHG.91.17.07
- KHG.91.17.08
- KHG.91.18-17.02
Fires on peat
Since 2012 the VIIRS satellites have recorded 7,068 heat detections on peat in this area. The worst year was 2015, with 3,651.
Since 7 October 2026: 148 confirmed fires on peat, from six-sensor satellite monitoring that started that day.
33 fires are active in this area right now, 6 of them on peat and 5 still burning.
Official hazard maps
KLHK forest and land fire hazard map (1:250,000)
| Very high | 37.7 thousand ha | 1.5% |
| High | 382.9 thousand ha | 14.8% |
| Moderate | 1.74 million ha | 67.2% |
| Low | 408.3 thousand ha | 15.8% |
Updated 16 October 2026.