尽管木质树种的性状在自然和实验环境梯度上存在巨大差异，但其水力性状的相关性很强

IF 4.6 1区环境科学与生态学 Q1 ECOLOGY Functional Ecology Pub Date : 2024-05-19 DOI:10.1111/1365-2435.14591

Ruike Huang, Ye Wang, Jie Duan, Benye Xi, Jinyan Yang, Ximeng Li, Jinchao Feng, Brendan Choat, David T. Tissue

引用次数: 0

摘要

水力特征是植物适应性的主要决定因素，因此对植被的结构、功能和分布具有控制作用。然而，水力性状是否以及如何对环境刺激做出反应（即水力性状的表型变异；PVHT），不同水力性状之间的协调以及性状与气候之间的关系是否受到 PVHT 的影响，这些问题仍不清楚。在此，我们综合了 PVHT（最大水力传导率和水势导致水力传导率损失 50%）以及潜在相关的形态和解剖性状（如边材密度、枝条胡伯值、平均导管直径和水力加权导管直径）的数据。我们分析了塑性反应的幅度、方向和变化来源，以及环境因素对性状协调的影响。此外，我们还比较了主要水力特征与生长地点气候指标（年平均降水量和年平均气温）之间的种内和种间差异，以及在整个种群范围内的差异。PVHT的变异主要发生在高分类水平（即科和属），而物候学对PVHT的变异解释很少。尽管变异很大，但在环境刺激下，性状相关性仍然很强。此外，性状与气候的关系在特异性之间和特异性内部也存在差异。我们的研究结果表明，PVHT 的高变异性并不影响性状相关性，而性状相关性可能对预测不同环境下的植被动态很有价值。性状与气候之间的独特关系凸显了揭示PVHT驱动力以及不同种群适应策略的必要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Functional Ecology 环境科学-生态学

CiteScore

9.00

自引率

1.90%

发文量

243

审稿时长

4 months

期刊介绍： Functional Ecology publishes high-impact papers that enable a mechanistic understanding of ecological pattern and process from the organismic to the ecosystem scale. Because of the multifaceted nature of this challenge, papers can be based on a wide range of approaches. Thus, manuscripts may vary from physiological, genetics, life-history, and behavioural perspectives for organismal studies to community and biogeochemical studies when the goal is to understand ecosystem and larger scale ecological phenomena. We believe that the diverse nature of our journal is a strength, not a weakness, and we are open-minded about the variety of data, research approaches and types of studies that we publish. Certain key areas will continue to be emphasized: studies that integrate genomics with ecology, studies that examine how key aspects of physiology (e.g., stress) impact the ecology of animals and plants, or vice versa, and how evolution shapes interactions among function and ecological traits. Ecology has increasingly moved towards the realization that organismal traits and activities are vital for understanding community dynamics and ecosystem processes, particularly in response to the rapid global changes occurring in earth’s environment, and Functional Ecology aims to publish such integrative papers.