Effect of bedrock, tree size and time on growth and climate sensitivity of Norway spruce in the High Tatras

IF 2.6 2区 农林科学 Q1 FORESTRY European Journal of Forest Research Pub Date : 2024-09-02 DOI:10.1007/s10342-024-01725-6
Saroj Basnet, Andreas Burger, Zuzana Homolová, Frederik Märker, Mario Trouillier, Martin Wilmking
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Abstract

Tree growth is a multifaceted process influenced by various factors at different spatial and temporal scales, including intrinsic tree traits and environmental conditions. Climate factors have a significant impact on tree growth dynamics, while geological controls can also play a crucial role. However, our understanding of the interplay between these factors concerning tree growth is currently limited. This study focuses on Norway spruce (Picea abies [L.] Karst.), one of the economically most important coniferous tree species in Europe, to investigate the interplay of growth, climate, and environment at the forest and corresponding treeline sites in the High Tatra Mountains of Slovakia. Specifically, we developed chronologies of tree-ring width (TRW) and late-wood density (MXD) for different tree size classes across two limestone and granitic sites. Growth rates of Norway spruce trees have been increasing in forests since the 1930s and from the 1950s at treelines. Growth rates were consistently higher on limestone bedrock compared to granitic bedrock conditions. Variability of radial growth is primarily driven by climate at both geological settings with trees on granitic bedrock displaying more pronounced responses to climatic variables. We observed weakening (non-stationarity) in climate signals over time and across all size classes in both geological settings. The magnitude of these effects is small, but varies across size classes, with larger trees generally displaying stronger climate sensitivities compared to smaller ones. Therefore, our findings accentuate the potential implications of geological settings, climate, and environmental factors on the absolute growth and growth dynamics of Norway spruce, highlighting the need for further research to fully understand and manage forest ecosystems in mountainous regions.

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基岩、树木大小和时间对塔特拉山高原挪威云杉的生长和气候敏感性的影响
树木生长是一个多方面的过程,受不同时空尺度上各种因素的影响,包括树木的内在特性和环境条件。气候因素对树木的生长动态有重大影响,而地质控制也会起到关键作用。然而,目前我们对这些与树木生长有关的因素之间相互作用的了解还很有限。本研究以欧洲经济上最重要的针叶树种之一挪威云杉(Picea abies [L.] Karst.具体而言,我们为两个石灰岩和花岗岩地点不同大小等级的树木建立了树环宽度(TRW)和晚木密度(MXD)年表。自20世纪30年代以来,挪威云杉在森林中的生长率一直在上升,从20世纪50年代开始在树线上也是如此。与花岗岩基岩条件相比,石灰岩基岩上的生长率一直较高。径向生长的变化主要受两种地质环境下气候的影响,花岗岩基岩上的树木对气候变量的反应更为明显。我们观察到,随着时间的推移,气候信号在两种地质环境下的所有大小等级中都有所减弱(非稳态)。这些影响的幅度较小,但在不同大小的树种之间存在差异,与较小的树种相比,较大的树种通常显示出更强的气候敏感性。因此,我们的研究结果突出了地质环境、气候和环境因素对挪威云杉绝对生长和生长动态的潜在影响,强调了进一步研究的必要性,以便充分了解和管理山区的森林生态系统。
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来源期刊
CiteScore
5.10
自引率
3.60%
发文量
77
审稿时长
6-16 weeks
期刊介绍: The European Journal of Forest Research focuses on publishing innovative results of empirical or model-oriented studies which contribute to the development of broad principles underlying forest ecosystems, their functions and services. Papers which exclusively report methods, models, techniques or case studies are beyond the scope of the journal, while papers on studies at the molecular or cellular level will be considered where they address the relevance of their results to the understanding of ecosystem structure and function. Papers relating to forest operations and forest engineering will be considered if they are tailored within a forest ecosystem context.
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