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过去沙区造林成活率低、生长慢。根据毛主席“大家明白,不论做什幺事,不懂得那件事的情形,它的性质,它和它以外的事情的关联,就不知道那件事的规律,就不知道如何去做,就不能做好那件事。”的教导,这几年经过整地灭草、选苗、压青育肥等措施,10年生左右的林木平均树高达10—13米,平均胸径16—20厘米,可作坑木用材,为沙区造林速生丰产提供了可贵的经验。这些措施的具体作法是:
In the past, the survival rate of silviculture in the sand area was low and the growth rate was slow. According to Chairman Mao, “we all know that no matter what you do, what you do not know about it, its nature, its association with something other than it, you do not know the law of that and you do not know how to do it , We can not do that well. ”In recent years, measures such as soil weeding, seedling selection and fattening fertilization have been carried out in recent years. The average tree height at 10 years of age is as high as 10 to 13 meters and the average diameter at breast height is 16 to 20 centimeters , Can be used as pit timber, for fast-growing forest yield afforestation provides valuable experience. The specific practices of these measures are: