Report on the harmonization of the CriticalFires modeling suite and related instructions for use

This report presents the harmonization of the CriticalFires modeling suite, an integrated framework that combines vegetation dynamics, wildfire disturbance, and soil carbon processes. The model couples a vegetation succession and fire module with the RothC soil carbon model to investigate feedbacks between vegetation structure, fire regimes, and soil organic carbon dynamics. It provides a tool to explore ecosystem resilience, carbon storage, and the interactions between wildfires and Critical Zone processes under varying environmental conditions. This study was part of the project “CRITICAL-FIRES”, funded by the Italian PNRR initiative “RETURN” (RETURN Extended Partnership, https://www.fondazionereturn.it/en/). “CRITICAL-FIRES” was coordinated by the Italian National Research Council (CNR). PNRR is funded by the European Union under the Next Generation Europe program (NRRP, M4, C2, I1.3 – D.D. 1243 2/8/2022, PE0000005).