Cultivated area vs population
I searched the forum for this subject but couldn't find anything. If there is a post about it please accept my apologies and direct me to it.
I would like to know if someone has an estimate on how much cultivated land is needed to support a population of X people type of thing. :?:
I know that this may vary, like in the case of fishing settlements and such.
I am asking here first because I would think it is a subject of some interest in fantasy map making. But if no one has any idea I will surely do research on it and post my findings here.