Plant is a only living organism that contain pigment chlorophyll; which does wonderful mechanism of generating food/energy by process called photosynthesis. Trees provide us oxygen, food and shed without being any discrimination of whatever species you are. There is no reason we can find to cut trees, destroy forest rather,they are friends to us. So planting tree is a one of the gesture shown by nachung scout of singye namgye ps in nurturing our pristine nature environment.