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一吉林省三岔子林业局地处长白山林区,已有七十多年的开发历史。总面积26.1万公顷,总蓄积3065万立米。其中,有林地面积21.3万公顷,蓄积2975万立米。在有林地蓄积中,成过熟林占70%,中令林占25%。目前,全局年生长量93.1万立米,年消耗量达1 07.5万立米,其中,除自然枯损1 9万立米外,采伐蓄积88.5万立米(计划内采伐59.7万立米,占67%:计划外采伐28.8万立米,占33%)。年消耗量超过生长量14.4万立米。建局三十二年来共采伐9.2万公顷,更新8 5万公顷,占92%,更新基本跟上采伐;营造人工林3万公顷,已郁闭成林1.8
A Jilin Province Sanchazi Forestry Bureau is located in Changbai Mountain forest area, has more than 70 years of development history. The total area of 261,000 hectares, the total volume of 30,650,000 cubic meters. Among them, there are 21.3 million hectares of forest land, an accumulation of 29.75 million cubic meters. In the accumulation of forest land, over-mature forest accounted for 70%, forest accounted for 25%. At present, the overall annual growth is 931,000 cubic meters, with an annual consumption of 1,075,000 cubic meters. Among them, in addition to the natural loss of 19,000 cubic meters, 885,000 cubic meters of logged harvest (planned harvesting of 597,000 cubic meters, accounting for 67% of the total) Cutting 288,000 cubic meters, accounting for 33%). Annual consumption of more than 14.4 million cubic meters of growth. A total of 92,000 hectares were evacuated and 85,000 hectares were renewed in 1992, accounting for 92% of the total. Undulation and logging were basically renewed; 30,000 hectares of plantations were created,