Abstract—

Experimental assessment of the fire-induced effect on reproductive structures of Pinus pallasiana is conducted using the material from the natural stands in Crimean Mountains. Vital functions of the seeds are found to be partly preserved in cones exposed to fire. Probability of the seeds’ survival following the heat shock strengthened with the cones’ length, as well as the relationship between the seeds resilience level and weight as compared with control samples is shown. Fire is shown to act as a factor of selection by seed weight and cones size in natural P. pallasiana stands. Therefore, clear-cutting of burned intact stands eliminates the biocenotic component involved into a system of natural mechanisms of post-fire recovery of forest communities. The clear-cutting changes the pathway of natural selection based on resilience to fire, as well as impairs and delays the recovery of indigenous stands in burned natural populations of P. pallasiana.

中文翻译：

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帕拉斯松种子耐火性的实验评估

摘要—

使用克里米亚山脉天然林分的材料对火对松松生殖结构的影响进行实验评估。发现种子的重要功能部分保留在暴露于火中的锥体中。显示了随着圆锥体长度的增加，热激后种子存活的概率以及与对照样品相比种子的弹性水平和重量之间的关系。在天然的P. pallasiana中，火被证明是种子重量和视锥大小的选择因素。站立。因此，对完整林分的明确砍伐消除了森林群落火灾后恢复自然机制所涉及的生物群落成分。明确的道路改变了基于耐火性的自然选择途径，损害并延缓了被烧毁的自然对虾的原始林分的恢复。