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兴安落叶松(Larix gmelini)林是大兴安岭林区的优势森林群落。目前,该林区正在对其进行大规模开发利用,商品材年产量已接近全国总产量的五分之一。为了使大兴安岭林区的开发真正实现“越采越多、越采越好”,做到“青山常在、永续利用”,广大林业科技工作者对兴安落叶松林的采伐更新问题已经予以关注。一、兴安落叶松林天然更新的能力及其重要意义根据历次更新调查综合统计,兴安落叶松林林冠下已有大量幼苗、幼树,平均每公顷约9,000株,平均频度42%。按更新标准衡量,
Larix gmelini forest is the dominant forest community in the Greater Xing’an Mountains. At present, the forest area is undergoing large-scale development and utilization, and the annual output of timber products is close to one fifth of the national total. In order to make the development of Daxinganling forest area truly realize “more and more, more and more, better” and achieve “evergreen mountains and sustainable use”, the majority of forestry scientists have paid more attention to the regeneration and regeneration of Larix gmelinii forest. First, the natural regeneration capacity of Larix gmelinii and its significance According to the latest update survey, there are a large number of seedlings and saplings under Larix gmelinii forest plantation, with an average of about 9,000 plants per hectare with an average frequency of 42%. According to update the standard measure,