Fig. 3: Primary forest cover and fire occurrence in the region.
From: Near-complete loss of fire-resistant primary tropical forest cover in Sumatra and Kalimantan
a Monthly precipitation anomalies in the region for the study period (Methods). b, c Change in extent and % of fire-affected grid cells for different primary forest cover percent categories in peatlands (b) and non-peatlands (c) of Sumatra and Kalimantan. The grey lines represent primary forest cover thresholds and indicate year to year changes in extent of areas covered by 1 km grid cells having primary forest cover of more than 99% (area to the left from the 99% threshold line), 99% to 50%, 50% to 1% and less than 1%. Colour indicates % of fire-affected grid cells. Primary forest cover estimates for each year represent the state at the beginning of the year. Forest loss estimate for that year is accounted for in the figure for the following year.
