Abstract Eucalyptus delegatensis is native to the Australian Alps (subsp. delegatensis) and montane Tasmania (subsp. tasmaniensis). Post-fire regeneration mechanisms of the obligate-seeder subspecies on the Australian mainland are well-known, but less is known about the resprouter Tasmanian subspecies. In January 2016, large tracts of Eucalyptus delegatensis forests in central Tasmania, logged at different intensities, were burnt by low- and high-severity fire. We used statistical modelling to understand how tree survival, vegetative regeneration and seedling recruitment differed according to understorey type, fire severity, logging intensity and tree size (DBH). Fire severity, defined as unburnt, low-severity (fire scarring on the stem and/or lower canopy burnt) and high-severity (full canopy burnt), affected tree survival: 84% of trees were alive in unburnt transects, compared with 43% in low-severity transects and 36% in high-severity transects. Epicormic resprouting was the dominant mode of vegetative recovery, with

中文翻译：

---

Eucalyptus delegatensis 火灾后恢复策略的变化：塔斯马尼亚亚种是重芽者，而澳大利亚大陆亚种是专性播种者

摘要 Eucalyptus delegatensis 原产于澳大利亚阿尔卑斯山 (subsp. delegatensis) 和塔斯马尼亚山地 (subsp. tasmaniensis)。澳大利亚大陆上的专性种子亚种的火灾后再生机制是众所周知的，但对重生者塔斯马尼亚亚种知之甚少。2016 年 1 月，塔斯马尼亚中部的大片桉树林被不同强度的砍伐，被低烈度和高烈度的火灾烧毁。我们使用统计模型来了解树木存活、营养再生和幼苗补充如何根据林下类型、火灾严重程度、伐木强度和树木大小 (DBH) 而有所不同。火灾严重性，定义为未燃烧、低严重性（茎上的火疤和/或下部树冠被烧毁）和高严重性（完全树冠被烧毁），影响了树木的存活：84% 的树木在未烧毁的样带中存活，而在低严重性样带中为 43%，在高严重性样带中为 36%。表皮重发是营养恢复的主要模式，