most of the places ive found outdoors that no hunters or any traffic.. the soil was garbage and acidic as fuck.. especially the swamps I like to put swamp tubes in.. promix worked great amended..
what is your point/who are you addressing?
I'm sure the native species were thriving in their native soil. Different types of plants have different requirements for growth. I'm sure if you conducted a soil test and amended the native soil accordingly it could become suitable for cannabis. You may even have to till the soil once for aeration... however after that it shouldn't need to be tilled again if you follow good organic practices and keep the soil balanced.
Do some reading in the big plant thread. The pros build mounds of dirt, and then add back to them and reuse w/o tilling. Knowledge is power. Read some science books. Nobody is gonna explain it step by step. Do and learn.