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Methods

Fuel load

Fuel load (W, Kg m-2) is the amount of living and dead mass expressed as the dry weight of fuel per surface area. Since it correlates with the potential energy that can be released during a fire, fuel loading is the primary fuel property addressed by forest management to reduce wildfire intensity and severity. Total fuel load is the maximum amount of fuel that can be consumed in the worst-scenario, while available fuel is the total amount that is consumed by fire (Pausas et al. 2017). Fine fuel typically includes leaves and twigs and branches less than 25 mm of diameter, although some authors consider only branches with a diameter up to 6 mm. Properties of fine fuels are not only related to short-term environmental moisture, but also to long-term responses to natural (e.g., drought, pests, browsing) and management factors.