For various reasons it might be necessary to remove a tree down to ground level. There are two ways to do this :
Directional Tree Felling : Where space and safety permit, a tree can be felled in one piece.
Dismantling (Section Felling) : Very often space is limited and the tree must be taken down piece by piece. If the area below the tree is clear and free from obstructions, cut branches can simply be allowed to fall. When branches are too large or heavy for the climber to hold and throw clear, or obstructions prevent their 'free falling', then lowering ropes must be used.