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Drought response of European beech (Fagus sylvatica L.)—A review
Perspectives in Plant Ecology, Evolution and Systematics ( IF 3.6 ) Pub Date : 2020-10-11 , DOI: 10.1016/j.ppees.2020.125576
Christoph Leuschner

European beech (Fagus sylvatica) is the dominant tree species of Central Europe’s natural forests and one of the continent’s most important timber species. This highly competitive species is known to be drought-sensitive and thus may increasingly be threatened by climate change-related heat waves and drought in part of its distribution range. Tree responses and tolerance to drought are complex processes that are best understood by adopting a multi-level analysis spanning from the molecular physiological to the tree and stand levels. Here I review recent progress in our understanding of beech drought responses in all relevant fields of research, notably adjustments in cellular biochemistry, responses of photosynthesis, stomatal regulation and leaf water status, the vulnerability of the hydraulic and phloem systems, adaptive responses of the fine root system, leaf area adjustments, long-term declines in radial growth, and drought-induced tree mortality. A special focus is on population differences in drought tolerance as the basis for the selection of drought-hardier provenances. The evidence from the different research fields is brought together with the aim to develop a multi-disciplinary perception of beech drought response, to identify weak components in the species’ drought response strategy, and to suggest future research efforts to close knowledge gaps.



中文翻译:

欧洲山毛榉(Fagus sylvatica L.)的干旱反应—综述

欧洲山毛榉(Fagus sylvatica)是中欧天然林的主要树种,也是非洲大陆最重要的木材树种之一。众所周知,这种竞争激烈的物种对干旱敏感,因此在其分布范围的一部分中,可能会越来越受到与气候变化相关的热浪和干旱的威胁。树木的响应和对干旱的耐受性是一个复杂的过程,通过从分子生理学到树木和林分水平的多级分析,可以最好地理解树木。在这里,我回顾了我们在所有相关研究领域中对山毛榉干旱响应的理解的最新进展,特别是细胞生物化学的调整,光合作用的响应,气孔调节和叶片水状况,水力和韧皮部系统的脆弱性,细度的适应性响应。根系统 叶面积调整,径向生长的长期下降以及干旱引起的树木死亡率。特别要注意的是,人们在耐旱性方面的差异是选择耐旱种源的基础。来自不同研究领域的证据汇集在一起​​,旨在发展对山毛榉干旱响应的多学科认识,确定该物种干旱响应策略中的薄弱环节,并提出未来的研究工作,以缩小知识差距。

更新日期:2020-10-30
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