党的十一届三中全会以来,我国积极贯彻党中央关于到本世纪末实现工农业年总产值翻两番和人民生活水平达到小康的总目标和总任务。通过调整农业结构,放宽林业政策,杨树丰产林得到迅速发展。全国目前营造杨树林1650万亩,其中杨树丰产林330万亩,是世界上杨树发展速度较快、面积较大的国家之一。这些杨树丰产林主要分布在山 Since the Third Plenary Session of the Eleventh Central Committee of our Party, our country has actively implemented the party Central Committee’s overall goal and general task of achieving the goal of quadrupling the total output value of industry and agriculture and achieving a well-off standard of living by the end of this century. By adjusting the agricultural structure and relaxing the forestry policy, the poplar forest of Poplar has been developing rapidly. There are currently 16.5 million mu of poplar grove in the country, including 3.3 million mu of poplar forest. It is one of the countries where poplar trees grow faster and are larger in size in the world. These poplar trees are mainly distributed in the mountains