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黑龙江省东部完达山、张广财岭地区,天然次生林的面积几占该区有林地总面积的80％左右,其中以蒙古柞为优势的林分和以山杨为优势的林分,占比例最大,约为次生林总面积的60％强。因此及时地研究和正确地确定蒙古柞林和山杨林的成熟期及主伐年令,对加强东部地区次生林的经营管理工作,提高森林的生产力,有着积极的作用。 我们根据近年来在完达山,张广财岭地区收集到的有关资料——其中蒙古柞林的标准地41块,山杨林的标准地39块,仅就该地区的蒙古柞林和山杨林的数量成熟,工艺
The area of natural secondary forests in the Wandashan and Zhangguangcun Mountains in the eastern part of Heilongjiang Province accounted for about 80% of the total area of the forestland in the region, of which the dominant stands were Mongolian oak and Populus euphratica, accounting for the largest proportion , About 60% of the total area of secondary forest strong. Therefore, it is of great significance to study and correctly determine the mature period and the cutting order of Mongolian oak forests and Populus euphratica forest in time, which plays a positive role in strengthening the management and management of the secondary forests in the eastern region and increasing the productivity of forests. According to the data collected in Wandashan and Zhangguangcunling areas in recent years, of which 41 are standard plots of Mongolian oak forests and 39 are standard samples of Populus euphratica, only the Mongolian oak forests and aspen forests The number of mature, craft