敖汉旗在改革中注重提高林业生产的经济效益,他们从国营林场开始试点,五年来全旗已营造速生丰产林1万多亩,为林业建设带来了新的希望。这个旗的国营三义井林场,从1954年建场以来国家投资达一千万元,设计面积50万亩现在已基本造上了林。然而,由于这里干旱少雨,林木成活不成材,大都长成了小老树。据统计,每亩林木蓄积量不 Aohan Banner focused on improving the economic benefits of forestry production in the reform. They started pilot projects from the state-owned forest farms. Over the past five years, the entire Banner has created more than 10,000 mu of fast-growing and high-yield forests, bringing new hope to the forestry construction. The state-owned Sanyi-jing Forest Farm, with a total investment of 10 million yuan since its establishment in 1954, has a design area of ​​500,000 mu and now it has basically become a forest. However, due to aridity and lack of rain here, most of the trees have grown into small trees. According to statistics, forest stock volume per acre is not