阿尔山林业局经营面积483861公顷,森林覆盖率为56.9％。该局建于1946年,40年来,为国家提供商品材816.9万立方米。解放前,这个地区就曾遭到日伪的掠夺式的采伐,致使该局采伐量远远超过生长量,已处于资源枯竭的边缘。其表现是:森林质量下降,白桦占有林地面积的53.6％;单位面积产量低,单位面积产量较1973年下降24.4％;可利用资源少,成熟林以上的林分蓄积为253万立方米,仅占总蓄积量的14.8％;宜林地 Aershan forestry management area of ​​483,861 hectares, the forest coverage rate of 56.9%. The council was built in 1946, 40 years, for the country to provide goods 8,169,000 cubic meters. Before the liberation, the area had been subjected to the predatory logging by the Japanese and the puppets, causing the bureau to cut far more than the amount of growth and was on the verge of resource depletion. The performance is as follows: the quality of forest declines, the white birch occupies 53.6% of the area of ​​forest land; the yield per unit area is low, the yield per unit area drops 24.4% compared with that of 1973; available resources are less, and the stand volume above mature forest is 2.53 million m3; Accounting for 14.8% of the total stock volume;