There are two options to this:
A) You introduce beavers that leave planks on the ground.
B) You introduce the Chain-Feeder 2000
I'll elaborate on B:
1) You attach the Chain-Feeder 2000 to a wood tree.
2) Having no planks, but great artificial intelligence and tree loving max, it will saw off planks to refill itself to 80 - every time it goes empty.
3) If the wood tree does end up to a state where it is no more... the Chain-Feeder 2000 will stay for 2-3 days on the ground (IRL) then if someone puts another tree, they can use engineering to reattach it...
Uses: Places where people want all wood... neighborhoods who want to feed piggies when away...
Any changes, suggestion, or controversies? Let me know.
Thank you for reading!