Translate the following English sentence to French:
"In several areas of the European Union, the forests are often the only viable economic option, because of poor soil or the lack of other natural resources. It is also clear that the importance of forests is by no means limited to economic factors."
Dans différentes zones de l'Union européenne, la forêt est souvent l'unique ressource économique en raison de la pauvreté des sols ou de la rareté des autres ressources naturelles.