New paper by Zhou et al 2018 dealing with the impact of wildfire on microbial C:N:P stoichiometry and the fungal-to-bacterial ratio in permafrost soils.
The results of the study indicate that forest wildfire increased the active layer depth and subsequently decreased soil moisture and vegetation coverage. This consequently led to a decrease in the microbial C and N contents as well as the F:B ratios. However, the C:N:P ratios in the microbial biomass remained relatively constant over time following a wildfire, indicating homeostatic regulation. Wildfire also failed to affect the microbial communities in the deep soil layers.
These results indicate a complex interaction between the decomposer community, resource availability, and successional stage. Forest wildfire either shifted the microbial diversity or suppressed the microbial growth rate for several decades.