The forest's most important role in life on earth is to purify air, supply oxygen to life. Forest is the lungs of the earth. The more life is, the more factories, the more engines ... the more forests need to balance the air.
In soil protection, erosion control, forest flood prevention also plays an important role. Rootless evergreen forest roots cling to the soil, keeping the soil from the sweeping floods. The dense jungle blocks the speed of heavy rainfalls preventing erosion. What else? Large wooden trunks, low-lying shrubs block the flow velocity of floods, creating time to soak up the soil, preventing floods from rushing.
Besides the role of natural balance, forests are also a valuable resource for economic development. No one can deny the wealth of old timbers, from herbs, from wild animals, from ecotourism sites.
It can be said that forests are invaluable resources, if lost, it is difficult to recover.