Repetition of vegetation and rejuvenation of open spaces at Scheuchegg and Hochsteg (National Park Gesäuse)

On the Scheuchegg-Alm and in the Hochsteg area, larger open spaces were created by bark beetle infestation in 2009/10. Due to the extinction of trees, the microclimate at these sites suddenly changed, resulting in the spread of competitive, vicious species. In the course of the re-uptake, the state of the land was documented on the basis of vegetation, rejuvenation and forest structure in summer 2020. The aim of the repeated study was to assess the vegetation composition, natural regeneration and forest structure at Bark Beetle Areas. The death of trees abruptly changed the Microclimate at these sites, resulting in a spread of competitive, fast growing species.2009至2010年间，肖伊切格阿尔姆（Scheuchegg-Alm）与霍赫施泰格（Hochsteg）区域因树皮甲虫（bark beetle）侵害形成了大片开阔空地。树木大量枯死导致此类区域的微气候发生突变，进而引发具有竞争优势的恶性物种扩散。在生态恢复进程中，研究团队于2020年夏季基于植被状况、幼树更新情况与森林结构，对该林地的状态进行了记录。 本次重复研究的目的在于评估树皮甲虫侵害区域的植被组成、天然更新状况与森林结构。树木死亡事件骤改了此类区域的微气候，进而催生了具有竞争优势的速生物种扩散。