I really like the idea of adding ‘Peat’ (or ‘Turf’) to the game. Here’s why:
It adds additional elements to the map, as this resource is gathered from a certain type of soil, then dried in the sun and used as a fuel (as well as some other applications).
Peat can therefor be used as an alternative to firewood, making more wood availlable for construction.
It also has some dangers to it, when caught on fire it is not easily extinguished, making ‘peat fires’ an additional challenge to the game.
It can also be used to improve the soil around the Arborist Building.
More info on Peat on Wikipedia (as always ): Peat - Wikipedia