作者在不同密度杨树丰产林中作了定位观测,综合分析了林分生长量、生物量、材种出材量和光能利用率。根据分析因子随密度变化的规律,提出了健杨丰产林适宜的造林密度,培养檩材的密度为56株/亩,7～8年采伐;梁材27株/亩,9～10年采伐;胶合板材19株/亩;小规格材种可以与大规格材种结合培育,分段造材、分级使用。 The author made a positioning observation in high-density poplar forest with different densities, and comprehensively analyzed stand growth, biomass, timber output and light energy utilization rate. According to the change law of the analysis factor with the density, the suitable afforestation density of Jiangyin high yielding forest was put forward. The density of the harvested timber was 56 per mu and the harvest was 7 to 8 years. The beam was 27 per acre and the harvest was 9 to 10 years. 19 plywood / mu; small size timber species can be combined with large-scale cultivation of timber, sub-building materials, grading use.