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对红松人工林７株解析木的生长及１８株样木木芯样品木材的基本密度进行了分析，以确定红松早期选择的最佳年龄和测量木材密度的取样方法。研究表明，红松人工林早期选择的适宜年龄为２５年；木材基本密度的变异，主要存在于单株之间及单株内的水平方向之间，林分间及胸高处不同方位间的差异都没有达到统计上的显著水平；在胸高处某一半径方向上所取样品的密度值，基本上可以代表胸高处的密度值；木材密度自髓心向外的水平方向上有明显差异，变异方式是密度值先增大，２５年左右时达到最大值，然后开始降低
The growth of 7 analytical trees in Pinus koraiensis plantation and the basic density of 18 samples of wood-core samples were analyzed to determine the optimum age for the early selection of Pinus koraiensis and the sampling method for measuring wood density. The results showed that the suitable age for early selection of Pinus koraiensis plantation was 25 years. The variation of basic density of wood mainly existed in the horizontal direction between single plants and in single plant, and the differences in different positions between forest and chest height Did not reach a statistically significant level; in the thoracic a radius of the sample taken from the density value, which can basically represent the density at the chest height; wood density from the medullary to the horizontal direction of significant differences, variation The way is to first increase the density value, reaching its maximum value in about 25 years and then begin to decrease