Resprouter species are of great interest for Mediterranean forest resilience as they can survive fire or drought by activating dormant vegetative buds to produce regrowth. Understanding which factors control the early growth and survival of these species is needed to develop strategies to enhance stand resilience. In this study, three broadleaved resprouter species, two trees—Fraxinus ornus and Sorbus domestica—and a shrub—Arbutus unedo—were planted under a gradient of pine cover. Sapling survival and height growth were monitored for 6 years, 2 years after their plantation, as well as light and shrub cover. We developed a two-strata forest water balance model, which produces a water stress index. We aimed to determine the effect of light, water stress and shrub cover on sapling survival and height growth using a modelling approach. We found that high levels of transmittance had a negative impact on both survival and height growth of F. ornus and S. domestica, while it had a positive effect on A. unedo growth. Water stress was found to negatively affect survival and height growth of all species. Lastly, shrub cover had an overall positive effect on the survival and growth of saplings, indicating a facilitating effect of the shrubs. Our results suggest that shade-tolerant tree species like F. ornus and S. domestica are more suited to moderate and light cover, while photoinhibition-tolerant shrub species like A. unedo are more adapted to open conditions. To maximize sapling survival and growth, we recommend preserving the shrubby understorey when present.

繁殖繁殖物种对于地中海森林的复原力非常感兴趣，因为它们可以通过激活休眠的营养芽以产生再生来生存于火或干旱中。需要了解哪些因素控制这些物种的早期生长和存活，以制定增强林分适应力的策略。在这项研究中，我们发现了三种阔叶生殖动物，两棵树-Fraxinus ornus和Sorbus domestica-以及灌木-杨梅-被种植在松树覆盖的梯度下。种植后2年（6年）对树苗的存活和身高生长进行监测，并进行光覆盖和灌木覆盖。我们开发了一个两层森林水平衡模型，该模型产生了水分胁迫指数。我们旨在通过建模方法确定光照，水分胁迫和灌木覆盖对树苗存活和身高增长的影响。我们发现高水平的透光率对山茱F和家蝇的存活和身高增长均产生负面影响，而对厚吻线虫则有正面影响增长。发现水分胁迫对所有物种的生存和高度增长产生负面影响。最后，灌木覆盖对树苗的存活和生长具有总体积极影响，表明灌木具有促进作用。我们的研究结果表明，耐荫树种如F. ornus和S. domestica更适合中度和轻度覆盖，而耐光蚀灌木树种如A. unedo更适合于开放条件。为了使幼树的生存和生长最大化，我们建议保留矮小的树皮下层（如果有）。