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目前就东北内蒙古林区来看,更新后出现成活率低的主要原因之一是受冻拔为害,轻的10—20%,严重的达50%以上。临江林业局在多年生产斗争中不断地总结经验教训,逐步认识自然规律,终于创造出适合当地林区特点的保土防冻更新方法,防止了冻拔害,提高了成活率。全局更新造林成活率平均80%;以上。自1963年起,实现了更新跟上采伐。为此,我们于1964年春在临江林业局党委具体领导下,采取领导、工人、科技人员三结合的方式,多次座谈、跟班劳动、就地观察、调查试验、进行了总结,现介绍于后。
At present, one of the main reasons for the low survival rate in the northeastern Inner Mongolia forest area is that it is affected by freezing and thawing, with 10-20% of light and 50% of severe ones. Linjiang Forestry Bureau constantly sums up experiences and lessons in many years of production struggle and gradually understands the laws of nature. Finally, it has created a new anti-freezing method for permafrost that is suitable for the characteristics of the local forest area, prevented the freezing injury and increased the survival rate. Global update afforestation survival rate average 80%; above. Since 1963, updates have been made to keep up with logging. To this end, in the spring of 1964, under the specific leadership of the party committee of Linjiang Forestry Bureau, we took the lead, workers, and scientific and technical personnel as the means of combining the three with each other, conducting discussions on a variety of occasions, observing and examining the work on the spot, and conducting field investigations and investigations. Rear.