There are many other sources as well but this can get you started.
It's a mistake to underestimate the sophistication of other civilizations. Native Americans depended on the forests and grasslands for food. They were very well-informed in matters of land management. The US Forest Service and other have begun (belatedly) to try to understand and incorporate these practices in their own forest management.
The Wiki article about Native fire management cites a variety of reputable sources. It's a good read: https://en.wikipedia.org/wiki/Native_American_use_of_fire_in...
I do remember learning in elementary school how the natives would plant plants in groups (tall corn shading shorter plants like squash and beans that don't need as much sunlight and to keep away weeds, etc.). But somehow I never connected that these were fundamentally American foods.
Here is the National Park Service page, but there are hundreds of papers on it I’m sure [https://www.nps.gov/yose/learn/nature/firehistory.htm]. There is extensive archaeological evidence of frequent small scale fires in the Sierras.