Fig. 4: Changes in forest cover and fire occurrence in areas which were >99% primary forests in the year 2002.
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. In contrast to Fig. 3, this figure only shows b peatland and c non-peatland areas which were undisturbed primary forest (grid cells having 99% or more primary forest cover) at the beginning of year 2002. Solid grey lines indicate the primary forest cover percentage thresholds as in Fig. 3. Dashed grey lines represent distance from the forest edge thresholds for the undisturbed forest category. Note different colour scales for peatland (b) and non-peatland (c) plots. See Supplementary Figs. 1–4 showing the same analysis split into different sub-regions of Sumatra and Kalimantan.
