1- Factories and wonders, etc. that generate resources are not taken into account since they are specific buffoons of each civilization and are non-replenishable. If I would have to take into account a building would be banks, Inca houses and sanctuaries (without animals) as they are replenishable.
2-The Aztecs collect food slower than a European but they do not suffer movement penalty so their rate is the SAME.
the other forum is also the natural resource collection rate.