A better quality of lumber results from tall straight trees than that produced by the symmetrical, branching trees.

That is why every forester who sets out trees tries to provide conditions which will make them grow tall and with the smallest possible covering of branches on the lower part of the trunks.
Where trees are exposed to strong winds, they develop deep and strong root systems.

They produce large and strong trunks that can bend and resist violent winds which sway and twist them in every direction.

Such trees are much stronger and sturdier than those that grow in a sheltered forest.

The trees that are blown down in the forest provide space for the introduction and growth of new varieties.