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本文通过大青杨在大川林场的密度间伐试验 ,得出了大青杨树高和单位面积材积的定期生长量与间伐强度的关系 ,初步确定了培养杨树短周期工业用材林较为理想的间伐密度 ,为我省东部山区营建短轮伐期工业用材林提供了一定的理论依据和实践指导
Based on the density thinning experiment of Daqing Yang in Dachuan Forest Farm, the relationship between the regular growth of Populus euphratica and the volume per unit area and the thinning intensity was obtained. The ideal thinning density of poplar short-period industrial timber was preliminarily determined, which was The establishment of short-rotation industrial timber forests in eastern mountainous areas of our province provides some theoretical basis and practical guidance