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通过研究１００株原始红松林内树高小于１４ｍ的红松解析木，分析了林下红松生长类型，林下红松生长与上层结构因子的关系，林下红松的形态特征及生理特性，结果表明，林下红松生长可划分为恒定型、下降型和上升型。被自然淘汰的林下红松皆属于恒定型和下降型。林下红松的生长受上层林冠结构因子的制约，没有合适的结构条件，林下红松很难存活。研究得出了天然林冠下红松被压木能够上升到上层林冠所需胸径、树高、树冠面积、边材宽、冠长／树高等形态学指标的最低极限值。
Based on the study of 100 species of Pinus koraiensis, whose height is less than 14 m in the original Korean pine forest, the relationship between the growth type of Pinus koraiensis, the relationship between the growth of Pinus koraiensis and its superstructure, the morphological characteristics and physiological characteristics of Pinus koraiensis, The results showed that Pinus koraiensis growth can be divided into constant type, descending type and ascending type. Naturally eliminated Pinus koraiensis are both constant and descending type. The growth of Pinus koraiensis under the constraints of the upper canopy structure factor, without suitable structural conditions, Pinus koraiensis is difficult to survive. The minimum values of DBH, height, canopy area, width of sapwood, crown length / height and other morphological indexes were obtained.