Since long ago, because develops the national economy national economy need, the forest cuts increases year by year, in addition violates the forest growth natural law and the forestry economic law, causes to pay Attention to cut and neglect the cultivation, excessive cut, has created to the forest resources ruinous destruction, has brought such as question and so on air pollution, conservation of water and soil, water source self-control, ecological environment worsening, has caused the enormous harm to the forest environment, caused the forest function to be out of balance, the ecological environment worsened, the ability of defending the natural disaster drop, the forest multi-purpose display has come under the enormous influence, could create the enormous waste and the loss in the economical virtually.

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