Forest Size

[2frei]

There's relatively little information on a forester's ability to generate enough resources to support a single lumberjack. Furthermore, these figures can change by unlocking tree regrowth upgrades.
I tried to assign one forester to two lumberjacks, but it didn't seem to be enough.

So I was wondering if anyone could tell me what size to allocate for a forest managed by a forester and a lumberjack?