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Limits to Tree Growth and Longevity

机译:限制树增长和长寿

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摘要

Tree growth and longevity are key features to understand fundamental issues of plant biology, environmental sciences, and current forest management plans. Here I discuss current evidence on the limits of tree growth and longevity and present a new conceptual framework to understand how and why they are closely interconnected. Despite the tremendous plasticity of trees, growth and longevity are limited not only by biotic and abiotic stresses, but also by age-related structural constraints such as height-related hydraulic limitations and vascular discontinuities, which are strongly species specific. Continuous growth and plastic branching may serve as a means to reach extreme longevities in some nonclonal trees, but even in these millennial organisms immortality can be attained only through the germ line.
机译:树成长和长寿是了解植物生物学,环境科学和当前森林管理计划的基本问题的关键特征。 在这里,我讨论了关于树立增长和长寿的限制的现有证据,并提出了一个新的概念框架,了解他们如何以及为什么密切相关。 尽管树木的巨大可塑性,但增长和长寿不仅受到生物和非生物应激的限制,而且受到年龄相关的结构约束,例如与高度相关的水力限制和血管不连续性,这是强烈的特异性。 连续生长和塑料分支可以作为一些非克隆树木达到极端寿命的手段,但即使在这些千年生物体中,也可以通过胚芽线来实现不朽。

著录项

  • 来源
    《Trends in Plant Science》 |2018年第11期|共9页
  • 作者

    Sergi Munné-Bosch;

  • 作者单位

    Department of Evolutionary Biology Ecology and Environmental Sciences University of Barcelona Faculty of Biology;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 植物学;
  • 关键词

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