Burning the pine is how you end with a soil composed of 90% sand. Respecting the slow building of fertile soil is basic. There are several decicuous trees able to grow in very acid soils. Not so much in acid, plus sandy, plus salty.
A fact that is not being noticed is that pine trees forests evolve naturally to substitute the pines with a bigger mix of species so if you plant a pine monoculture you need to manage it to keep the monoculture. This forest evolution happens for free by natural means unless:
Sheep enter the forest or...
Weather is very cold or very hot or...
Soil is really poor, because wildfires.
Keep controlled this variables for a generation and the flammable monoculture problem will fix itself. All forests evolve to be eventually less flammable, but they need time to do this.
A fact that is not being noticed is that pine trees forests evolve naturally to substitute the pines with a bigger mix of species so if you plant a pine monoculture you need to manage it to keep the monoculture. This forest evolution happens for free by natural means unless:
Sheep enter the forest or...
Weather is very cold or very hot or...
Soil is really poor, because wildfires.
Keep controlled this variables for a generation and the flammable monoculture problem will fix itself. All forests evolve to be eventually less flammable, but they need time to do this.