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残次林分的更新改造是整个林业生产的一个重要组成部分。也是保护森林、发展森林、提高林地生产力、增加森林蓄积量的一项重要技术措施。但是,近年来在林业生产过程中,严重存在重伐轻造,盲目采伐和滥伐现象,忽视了森林更新改造工作,致使大面积用材林退化为残次林,森林资源逐年减少,国家建材严重不足,市场供不应求。因此,迅速改造好残次林,变残次林为用材林,已成为当前林业生产中有一项迫切任务。
The regeneration of the secondary forest is an important part of the entire forestry production. It is also an important technical measure to protect forests, develop forests, raise the productivity of forest lands and increase the volume of forest reserves. However, in recent years, in the course of forestry production, heavy and light harvesting, blind harvesting and deforestation have been severely exaggerated, and the renewal and renovation of forests have been neglected. As a result, large-area timber forests have been degenerated into secondary forests, and forest resources have been declining year by year. , The market is in short supply. Therefore, it is an urgent task for forestry production to rapidly transform the secondary and secondary forests into timber forests.