An ecosystem that is the lungs of the world is a forest. If we do not preserve forests and preserve them will bring adverse effects on living beings both in the present and the future. As we know the forest is a place for the life of plants and animals with a large area and able to create a certain climate. for that we have to protect forests and we preserve do not happen illegal logging so that the forest becomes barren can damage the natural ecosystem. Living things are very dependent on the forest ecosystem because if the forest is still there and we always breathe fresh air every day. For that we have to preserve the forest forest because it is very useful for us, among others.