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为了加快土地利用的周期,提高森林生态系统的经济效益和社会效益,采伐迹地更新造林应以速度快、质量高为标准,力求快速恢复森林植被,并能丰产。在长白山林区采用乡土树种大青杨(Populus ussuriensis)和香杨(P.koreana)进行采伐迹地(特别是皆伐迹地)更新造林,不仅成本低、林木易成活、生长快、森林植被恢复快,而且可以改变多年来以落叶松为主要更新树种的格局,对迅速恢复森林生态系统的稳定性具有显著的效益。1975年,我们在吉林省黄泥河林业局上马
In order to speed up the cycle of land utilization and increase the economic and social benefits of forest ecosystems, reforestation on deforested sites should be based on fast speed and high quality, so as to rapidly restore forest vegetation and yield high yield. Not only low cost, easy survival of forest trees, fast growth, quick recovery of forest vegetation, but also the use of Populus ussuriensis and P. koreana in Changbai Mountain forest area for reforestation, But also change the pattern that larch is the main species of tree species for many years, which has significant benefits for the rapid restoration of the stability of forest ecosystems. In 1975, we launched in Huangnihe Forestry Bureau of Jilin Province