Leaf functional traits and ecological strategies of common plant species in evergreen broad-leaved forests on Huangshan Mountain

IF 3.4 2区 农林科学 Q1 FORESTRY
Ningjie Wang, Ting Lv, Lu Wang, Shuifei Chen, Lei Xie, Yanming Fang, Hui Ding
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Abstract

The survival strategy of plants is to adjust their functional traits to adapt to the environment. However, these traits and survival strategies of evergreen broad-leaved forest species are not well understood. This study examined 10 leaf functional traits (LFTs) of 70 common plant species in an evergreen broad-leaved forest in Huangshan Mountain to decipher their adaptive strategies. The phylogenetic signals of these LFTs were assessed and phylogenetically independent contrasts (PIC) and correlation analyses were carried out. LFTs were analyzed to determine their CSR (C: competitor, S: stress-tolerator, R: ruderal) strategies. The results show that plant species exhibit different leaf functional traits and ecological strategies (nine strategies were identified; the most abundant were S/CS and S/CSR strategies). Some traits showed significant phylogenetic signals, indicating the effect of phylogeny on LFTs to an extent. Trait variations among species suggest distinct adaptation strategies to environmental changes. The study species were mainly clustered on the C-S strategy axis, with a high S component. Species leaning toward the C-strategy end (e.g., deciduous species), favored a resource acquisition strategy characterized by higher specific leaf area (SLA), greater nutrient contents (N and P), lower leaf dry matter content (LDMC), and reduced nutrient utilization efficiency (C: N and C: P). Conversely, species closer to the S-strategy end (e.g., evergreen species) usually adopted a resource conservative strategy with trait combinations contrary to those of C-strategy species. Overall, this study corroborated the applicability of the CSR strategy at a local scale and provides insights into the varied trait combinations and ecological strategies employed by plant species to adapt to their environment. These findings contribute to a better understanding of the mechanisms involved in biodiversity maintenance.

Abstract Image

黄山常绿阔叶林常见植物物种的叶功能特征和生态策略
植物的生存策略是调整其功能特性以适应环境。然而,人们对常绿阔叶林物种的这些性状和生存策略并不十分了解。本研究考察了黄山常绿阔叶林中70种常见植物的10个叶片功能性状,以解读其适应策略。研究评估了这些叶功能特征的系统发育信号,并进行了系统发育独立对比(PIC)和相关分析。通过分析 LFTs,确定了它们的 CSR(C:竞争者;S:压力调节者;R:野蛮者)策略。结果表明,植物物种表现出不同的叶片功能性状和生态策略(确定了九种策略;最多的是 S/CS 和 S/CSR 策略)。一些性状显示出明显的系统发育信号,在一定程度上表明系统发育对叶片功能特征的影响。物种间的性状差异表明它们对环境变化采取了不同的适应策略。研究物种主要集中在 C-S 策略轴上,其中 S 成分较高。偏向 C 策略一端的物种(如落叶物种)倾向于资源获取策略,其特点是比叶面积(SLA)更大、养分含量(N 和 P)更高、叶干物质含量(LDMC)更低、养分利用效率(C:N 和 C:P)更低。相反,接近 S-策略一端的物种(如常绿物种)通常采取资源保守策略,其性状组合与 C-策略物种相反。总之,本研究证实了CSR策略在局部尺度上的适用性,并对植物物种为适应环境而采用的不同性状组合和生态策略提供了深入的见解。这些发现有助于更好地理解生物多样性的维护机制。
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来源期刊
CiteScore
7.30
自引率
3.30%
发文量
2538
期刊介绍: The Journal of Forestry Research (JFR), founded in 1990, is a peer-reviewed quarterly journal in English. JFR has rapidly emerged as an international journal published by Northeast Forestry University and Ecological Society of China in collaboration with Springer Verlag. The journal publishes scientific articles related to forestry for a broad range of international scientists, forest managers and practitioners.The scope of the journal covers the following five thematic categories and 20 subjects: Basic Science of Forestry, Forest biometrics, Forest soils, Forest hydrology, Tree physiology, Forest biomass, carbon, and bioenergy, Forest biotechnology and molecular biology, Forest Ecology, Forest ecology, Forest ecological services, Restoration ecology, Forest adaptation to climate change, Wildlife ecology and management, Silviculture and Forest Management, Forest genetics and tree breeding, Silviculture, Forest RS, GIS, and modeling, Forest management, Forest Protection, Forest entomology and pathology, Forest fire, Forest resources conservation, Forest health monitoring and assessment, Wood Science and Technology, Wood Science and Technology.
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