It simulates a natural disaster such as a fire which brings about very healthy new growth. If the trees were not cut, they would die from old age or be destroyed by a fire anyway. Logging is done so that it does not destroy the land. The land after being harvested for wood is replanted. The replanted trees are a hybrid variety so they grow thick, strong and fast.
Great care is taken to thin out the trees and keep the forest growing.
The result is a beautiful forest in better condition than it was first found. Logging speeds up nature's process. In the photograph, a recently cut forest is pictured. Towards the bottom is the freshly cut area and at the top is an area that was cut only a few years ago. As this shows, all logging is not pure clearcutting and the forests grow back fast.