Abstract The present study analyzes the composition of pine wood cultivated on artificial plantations in the Leningrad Oblast (Region). Comparing to pine wood from natural stands, a smaller heartwood zone along the height of the pine trunk and a lower content of resinous substances are noted. The content of cellulose and lignin in the heartwood and sapwood of pine is distributed differently along the trunk. The distribution of pentosans and water-soluble substances in the heartwood and sapwood along the trunk is associated with the lignin complex. The component composition of the studied pine wood from planted stands is quite uniform in its indicators if compared to the wood of older natural stands. Sulphate pulping of planted pine wood showed a higher yield of technical cellulose than the average yield from wood obtained at natural stands of the studied region.

中文翻译：

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北方地区人工种植松木成分组成

摘要 本研究分析了在列宁格勒州（地区）人工种植园种植的松木的成分。与天然林分的松木相比，沿松树树干高度的心材区域较小，树脂物质含量较低。松树心边材中纤维素和木质素的含量沿树干分布不同。戊聚糖和水溶性物质在沿树干的心边材中的分布与木质素复合物有关。如果与较老的天然林分的木材相比，所研究的来自人工林分的松木的成分组成在其指标上非常一致。