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我省西部五十和六十年代初营造的农田防护林,已到了老熟令阶段。从农田防护林的经营管理角度出发,必须对已成熟的老林带尽快更新利用,如不及时采取措施,不仅对树木生长速度减退,出现病腐木,严重降低防护作用,同时也会使木材的经济价值大大降低,造成不应有的损失,现就我省西部老林带更新造林技术问题淡以下几点看法。一、林带更新的方法
Farmland shelterbelts built in the early 50s and early 60s of the western part of our province have reached the ripening stage. From the perspective of farmland shelterbelt management, we must update and utilize the mature shelterbelts as soon as possible. If we do not take measures in time, we will not only reduce the growth rate of trees, but also produce sick rotten wood, which will seriously reduce the protective effect and at the same time will make the economy of timber Greatly reduce the value, resulting in undue losses, now on the western part of our province to update the afforestation technology in the old forest light the following views. First, the method of updating the forest belt