论文部分内容阅读
我场位于赤峰市西南部的茅荆坝林区,是一个以经营天然次生林为主的经营林场。建场三十年来,有林地面积由建场初期的10.9万亩发展到33万多亩,蓄积量由建场初期的5.2万立方米增加到66万立方米;共完成更新造林19.7万亩,保存面积16.9万亩,保存率达85.4%;中幼林抚育45万亩次,低产林改造1.5万亩,成熟林采伐2.1万亩,生产木材27万立方米;采集林木种子25万斤。建场以来国家总投资572万元,实现利税455万元,为国家投资的80%。现在经营范围内的宜林荒山都已营造成林。有以白桦、山杨为主
My field is located in the southwest of Chifeng City, Mao Jingba forest, is a natural forest management operations of the main forest farm. In the thirty years since the establishment of the park, the area of forestland has been increased from 109,000 mu to 109,000 mu at the initial stage of the establishment, and the stock volume has increased from 52,000 cubic meters to 660,000 cubic meters at the initial stage of construction. A total of 197,000 mu of newly- Save an area of 16.9 hectares, the preservation rate of 85.4%; young and middle-aged nursery 45 million mu times, low-yield forest transformation of 15,000 mu, mature forest harvest 21,000 mu, production of wood 27 million cubic meters; Since the establishment of the country a total investment of 5720000 yuan, 4550000 yuan in profits and taxes, 80% of the state investment. Yiling now operating within the barren hills have created a forest. With birch, aspen-based