林业生产实践反复证明了:“成林靠抚育,成材依间伐”。其目的就是按照林木不同生长发育阶段的物质循环和同化物分配规律,采取适时、适量、适法来调整林分密度,以保证保留木有合理的营养空间,改善林分状况,促使其生长发育,充分发挥森林生产潜力、控制森林质量均具有显著效果。为了避免传统间伐的盲目 Forestry production practice has repeatedly proved: “Forest by tending, timber cut according to.” Its purpose is to adjust the stand density according to the law of material circulation and assimilate distribution in different stages of growth and development of forest trees so as to ensure that the reserved wood has reasonable nutrition space, improve the stand condition and promote its growth and development , Giving full play to the potential of forest production and controlling the quality of forests all have notable effects. In order to avoid blindness of traditional thinning