Another approach to provide additional wood resources to the world. This mod adds trees to the farming-feature. Once the tree saplings are gown up they will be harvested, stored in the stockpile and can be placed into the world. Trees added to the world via this mod are harvestable and will provide additional wood resources.
The mod can be downloaded under the following link and can be simply added to the mods-folder:
P.S. Added trees can be moved.
P.P.S. For the beginning it is suggested to start with a small farm.
P.P.P.S. The mod is by far not balanced. If you have too many trees in the stockpile, just remove the field.