Upgrade to an Iron Logging Axe as soon as possible. It will reduce your logging time by 50% or more. A Steel Logging Axe will reduce your logging time by half or more.
The bigger the tree, the more hacks it takes to fell and the more wood will
be recovered. Experience is capped at +75 per node though.
Not all forests are equal. The bigger trees are found in the midland forests and give better yields.
Trees can drop Woodworking perk items that can be added to Armor during Armoring at an Outfitter Station or Forge. This can add a 2% to 3.5% increase in refining yield for wood products at the Woodworking station.