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热带海洋学报

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潮间带不同位置红树植物功能性状与资源权衡的变化特征

曾瀚1,2, 王友绍2, 廖辉煌2, 王慧2, 阳毅璋2, 赵艳1, 程皓2   

  1. 1. 齐齐哈尔大学生命科学与农林学院, 黑龙江 齐齐哈尔 161006;


    2. 热带海洋环境与岛礁生态全国重点实验室(中国科学院南海海洋研究所), 广东 广州 510301


  • 收稿日期:2026-02-01 修回日期:2026-04-28 接受日期:2026-05-11
  • 通讯作者: 赵艳
  • 基金资助:

    国家重点研发计划(2023-67; 2022-36);南沙区高端领军人才创新团项目(红树林湿地蓝碳增汇技术创新团队);海南省揭榜挂帅重点研发计划(ZDYF2023SHFZ172);自然资源部省部合作项目(059GJHZ2023104MI);黑龙江省优势特色学科科技攻关项目(YSTSXK202303)

Variations in Functional Traits and Resource Trade-offs in Mangrove Plants at Different Intertidal Positions

ZENG Han1, WANG Youshao2, LIAO Huihuang2, WANG Hui2, YANG Yizhang2, ZHAO Yan1, CHENG Hao2   

  1. 1. College of Life Sciences, Agriculture and Forestry, Qiqihar University, Qiqihar 161006, China;


    2. State Key Laboratory of Tropical Oceanography (South China Sea Institute of Oceanology, Chinese Academy of Sciences), Guangzhou 510301, China


  • Received:2026-02-01 Revised:2026-04-28 Accepted:2026-05-11
  • Supported by:
    National Key Research and Development Plan (2023-67; 2022-36); Nansha District High-Level Talents (Innovation Team of Mangrove Wetland for Blue Carbon Enhancement Technology); Hainan Province Science and Technology Special Fund (ZDYF2023SHFZ172); Ministry of Natural Resources Provincial-Ministerial Cooperation Project (059GJHZ2023104MI); Heilongjiang Provincial Science and Technology Key Project for Disciplinary Advantages and Characteristics (YSTSXK202303)

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摘要： 红树林在潮间带常呈现明显的群落演替与带状分布现象, 但不同类型红树植物生长策略差异尚不完全清楚。为此, 本研究选取高桥红树林国家自然保护区为对象, 分析位于潮间带不同位置的红树植物功能性状及资源权衡的变化特征。结果表明, 伴随着高程的增加, 从先锋种白骨壤群落, 到过渡种群桐花树群落, 再到演替后期木榄群落, 气孔密度(SD)、光系统II有效量子产率[Y(II)]和光系统II最大量子产率(Fv/Fm)逐渐降低, 但非光化学淬灭(NPQ)逐渐升高, 表明植物光合策略趋于保守策略；在形态结构和构建成本上, 相比先锋种, 演替后期植物也采取了保守的投资策略, 体现为比叶面积(SLA)下降、叶片厚度(LT)和叶组织密度(LTD)上升；同时, 叶片结构性碳(SC)以及C:N也增加, 表明碳分配策略上也趋于保守。此外, 根和叶的功能性状存在部分协同关系, 演替后期植物同样具备相对保守的根系, 具有较高的根直径(RD)和根组织密度(RTD)以及较小的比根长(SRL)。综上, 本研究基于叶-根经济谱框架, 揭示了伴随高程的增加, 红树植物的功能性状呈现出从资源获取型向资源保守型转变的趋势。本研究不仅深化了对于红树植物潮间带适应机制的理解, 同时也为红树林保护与恢复提供了理论支撑。

关键词: 红树林, 演替, 功能性状, 资源权衡, 高桥自然保护区

Abstract: Mangrove forests often display distinct community succession and zonation patterns in the intertidal zone, whereas differences in growth strategies among different mangrove species remain incompletely understood. To address this gap, the present study was conducted in the Gaoqiao Mangrove National Nature Reserve, aiming to examine variations in functional traits and resource trade-offs of mangrove plants distributed at different intertidal positions along the elevation gradient. The results demonstrated that with increasing elevation, along the succession sequence from the pioneer Avicennia marina community, the transitional Aegiceras corniculatum community, to the late-successional Bruguiera gymnorrhiza community, stomatal density (SD), the effective quantum yield of photosystem II [Y(II)] and the maximum quantum yield of photosystem II (Fv/Fm) gradually decreased, whereas non-photochemical quenching (NPQ) showed a continuous increasing trend. These changes implied that the photosynthetic strategy of mangrove plants shifted toward conservatism. In terms of morphological structure and construction cost, late-successional species adopted a more conservative resource-investment strategy compared with pioneer species, as reflected by the declined specific leaf area (SLA), and elevated leaf thickness (LT) and leaf tissue density (LTD). Meanwhile, leaf structural carbon (SC) content and the C:N ratio both increased, indicating a conservative shift in carbon allocation strategy as well. Additionally, there was a significant coordination between leaf and root functional traits. Late-successional species developed a relatively conservative root system, featured by greater root diameter (RD), higher root tissue density (RTD) and lower specific root length (SRL). Collectively, within the framework of the leaf-root economics spectrum, this study revealed that mangrove functional traits exhibit a transition from resource-acquisitive to resource-conservative strategies with increasing elevation. These findings not only deepen the understanding of the adaptation mechanisms of mangrove plants to the intertidal zone, but also provide theoretical support for the conservation and restoration of mangrove ecosystems.

Key words: Mangrove forests, Succession, Functional traits, Resource trade-offs, Gaoqiao Nature Reserve