[Sunhold]

Have you never left a city? The idea that half the forests in Canada are plantations should be ridiculous on its face.

[flakeoil]

A "plantation" in this sense is something that has been planted by man sometime in the last 100 years. Many forests you see which are 40 or 70 years old look like real wild forests, but are in fact planted.

Don't forget that trees in Canada grow slowly compared to for example trees in a jungle.