Fig. 5

Biplot relationships between wildfire metrics (red text) and biophysical, socioeconomic and climatic variables (black text) of NUTS3 provinces in Italy. Each dot represents a NUTS3 province, and the colors denote belonging to a pyroregion: Large summer wildfires (LAS); Extreme stand-replacing summer wildfire (EXS); Medium density summer wildfires (MDS); Subalpine low density wildfires (PLD); Alpine high density wildfires (AHD); Alpine High Stand-replacing wildfires (AHS); and Reduced stand-replacing wildfires (RES). The arrow length and direction represent the variance that can be explained by the variables. The direction of an arrow suggests an increasing magnitude of the variable, while the perpendicular distance between orders and variable axes in the biplot represent their correlations (All variables are reported in Table 2.)