我省松林资源较多,约占用材林面积的40%左右。不但可生产木材,还可以采割松脂。松脂加工后得松香和松节油,是现代轻工业、重工业、国防工业和日用化学工业以及医药上成千种以上产品所需要的重要原料;松节油还可合成樟脑、龙脑、冰片、提炼香精及浮选各种有色金属。随着工业的发展,新用途的出现,对松脂需要量将日益增长。一株松树,每年可采割松脂5—7市斤,长期采脂可采割15年以上。由此可见,发展松脂生产不仅是支援国家工农业建设,同时 Songlin resources in our province more, accounting for about 40% of timber area. Not only can produce wood, but also can be eaten pine resin. Rosin and turpentine processing after rosin, is a modern light industry, heavy industry, defense industry and daily chemical industry and medicine on the thousands of products required for the important raw materials; turpentine can also be synthesized camphor, borneol, borneol, refining flavor and floating Choose a variety of non-ferrous metals. With the development of industry, the emergence of new uses, the demand for rosin will be growing. A pine tree, annual can be recycled resin 5-7 kg, long-term oil extraction can be cut more than 15 years. Thus it can be seen that the development of rosin production not only supports the national industrial and agricultural construction, at the same time