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Red pine crown

This is an example of the canopy in the same stand as the previous picture.  You can see that the crowns of the trees are touching and even growing into one another.  Under a situation where all the trees were retained, the trees would continue to grow until the larger crowned individuals overtook the available light from the smaller ones. The smaller ones will then die, which is often seen in unmanaged plantations.  Proper thinnings focus on the removal of the trees with smaller crowns and other trees with poor form until a target density is reached based on growth factors.