Here is a summary of the article on peat fires:

## Peat Fires

The burned area due to peat fires, denoted as Ab, is calculated using the equation:

Ab = c * fcli,p * fpeat * (1 - fsat) * Ag

Where:
- c is a constant (0.17 x 10^-3 hr^-1 for tropical peat fires, 0.9 x 10^-5 hr^-1 for boreal peat fires)
- fcli,p represents the effect of climate on burned area
- fpeat is the fractional coverage of peatland in the grid cell
- fsat is the fraction of the grid cell with a water table at the surface or higher
- Ag is the total grid cell area

For tropical peat fires, fcli,p is a function of long-term precipitation (P60d). For boreal peat fires, fcli,p depends on soil wetness (θ17cm) and temperature (T17cm).

Peat fires lead to peat burning and the combustion/mortality of vegetation. For tropical peat fires, carbon emissions are calculated based on the fraction of peat carbon loss and burned area. For boreal peat fires, the carbon emissions are set at 2.2 kg C m^-2 of peat fire area.

Biomass combustion and vegetation mortality in post-fire peatlands are handled the same as for non-crop and crop PFTs, respectively.