Thank you for the question.
I will try to respond in English so my colleagues can jump in if I miss something.
What is important to keep in mind is the system in its natural state. In some places like in the Prairies, there were natural prairies, with bison. In those cases, it's important to keep them as close to natural as possible. If there were bison, then it's just a cycle to put cattle on them or to use grass harvesting, but in other ecosystems, if we try to convert an ecosystem that was maybe a deciduous forest into grassland, then, where there is a land use change, we might have negative effects. It all depends on what was there originally and how we can continue to produce as much as possible without causing much disturbance in the long run.