林业是农业的重要组成部份,但森林与农作物又有根本的区别。水稻、棉花春种秋收,当年种植、当年就有收益。培育一片森林,从采种、育苗、造林到采伐利用要十几年或者几十年,要经过很长时间的精心管理才有收益。现在国家、集体、个人不论在生产和生活方面对木材的需要量大,而且又十分迫切,这就需要发动群众大力造林。而造林又是件费工大, Forestry is an important part of agriculture, but there is a fundamental difference between forests and crops. Rice, cotton harvest in the spring, then planted, then have income. Nurturing a forest, from mining, nursery, afforestation to harvesting use to ten years or decades, only after a long period of careful management of the proceeds. At present, the demand for timber by the country, the collective and the individuals regardless of their production and living needs is large and urgent. This calls for mobilizing the masses to vigorously reforest the forests. The afforestation is a big work,