Extended Data Fig. 9: Fire size, fire vulnerability and the fire size effect on biogeophysical changes one year after fire, ordered by increasing share of mixed forests and deciduous broadleaf forests for northern forests (40°N–70°N).
From: Forest fire size amplifies postfire land surface warming
Fire vulnerability is defined as the change in LAI (ΔLAI, a) and surface radiometric temperature (ΔΤ, e) after fire, and fire-induced forest mortality (h). Simple linear regression models (y = α + β × log10(fire size)) were fitted for each 2° grid cell with more than 10 fires to derive the fie size effect (β) on postfire changes in LAI (βΔLAI, b), ecosystem evapotranspiration (βΔET, c), surface albedo (βΔα, d) and surface radiometric temperature (βΔT, f) in summer one year after fire. Boxplots are shown for fire size (g), fire vulnerability (a, e, h) and fire size effect on biogeophysical changes (b, c, d, f) using samples of 2° grid cells falling in different bins of DBF and MF forest coverage (in 10% intervals). The number above each box indicates the number of 2° grid cells in each bin. The center line of the boxplots represents the median value, with box limits indicating upper and lower quartiles and whiskers showing 1.5 × interquartile range. Figure developed using the Python open-source tools.
