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热带海洋学报

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热带岛礁珊瑚砂海岸植被修复对土壤细菌和真核生物群落演替的影响

吴鹏1, 2, 3, 杨禧越1, 李纯厚1, 肖雅元1, 2, 3, 周卫文4, 程皓4, 崔磊5, 殷建平4*, 刘永1, 2, 3*
  

  1. 1. 农业农村部南海渔业资源开发利用重点实验室/广东省珠江口生态系统野外科学观测研究站/广东省渔业生态环境重点实验室(中国水产科学研究院南海水产研究所), 广东 广州 510300;

    2. 国家渔业资源环境大鹏观测实验站(中国水产科学研究院南海水产研究所), 广东 深圳 518116;

    3. 西沙岛礁渔业生态系统海南省野外科学观测研究站(三亚热带水产研究院), 海南 三亚 572018;

    4. 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;

    5. 暨南大学生命科学技术学院赤潮与海洋生物学研究中心, 广东 广州 510632


  • 收稿日期:2025-09-15 修回日期:2025-10-25 接受日期:2025-11-10
  • 通讯作者: 刘永
  • 基金资助:
    国家重点研发计划(2022-36); 中国水产科学研究院中央级公益性科研院所基本科研业务费专项资金(2023TD16); 农业财政专项(SYHZX2025; NHZX2024)

Effects of vegetation planting on the succession of bacterial and eukaryotic communities in a coral sand beach of a tropical island

WU Peng1, 2, 3, YANG Xiyue1, LI Chunhou1, XIAO Yayuan1, 2, 3, ZHOU Weiwen4, CHENG Hao4, CUI Lei5, YIN Jianping4*, LIU Yong1, 2, 3   

  1. 1. Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs/Guangdong Provincial Observation and Research Station for Ecosystem in the Pearl River Estuary/Guangdong Provincial Key Laboratory of Fishery Ecology and Environment (South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences), Guangzhou 510300, China;

    2. National Agricultural Experimental Station for Fishery Resources and Environment (South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences), Shenzhen 518120, China;

    3. Scientific Observation and Research Station of Xisha Island Reef Fishery Ecosystem of Hainan Province (Sanya Tropical Fisheries Research Institute), Sanyan 572018, China;

    4. State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;

    5. Research Center for Harmful Algae and Marine Biology, Jinan University, Guangzhou 510632, China


  • Received:2025-09-15 Revised:2025-10-25 Accepted:2025-11-10
  • Supported by:

    National Key R&D Program of China (2022-36); Central Public-interest Scientific Institution Basal Research Fund, CAFS (No. 2023TD16); Financial Fund of the Ministry of Agriculture and Rural Affairs, P. R. China (SYHZX2025,NHZX2024)

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摘要： 南沙群岛中许多珊瑚岛礁缺乏原生植被，为构建稳定的珊瑚砂海岸，近年来开展了红树种植修复工作。然而，目前尚缺乏关于植被修复过程中土壤生物群落结构演变规律的研究。本研究利用高通量测序技术，分析了红树植物种植后1年内不同时期珊瑚砂海岸土壤中细菌和真核生物群落的变化特征。结果表明，土壤细菌的优势类群主要包括蓝细菌、变形菌门、拟杆菌门、酸杆菌门和绿弯菌门，且可能存在大量细菌新种；真核生物则以纤毛虫、线虫、不等鞭毛类、硅藻和有孔虫为主。主坐标分析和相似性分析显示，植被种植显著改变了土壤细菌和真核生物的群落结构，并且真核生物群落的变化尤为显著。随着种植时间的延长，细菌群落的Shannon多样性指数显著增加，而真核生物的Shannon指数在种植1年后有所下降。共生网络分析进一步表明，随着植被修复进程的推进，土壤中生物间的相互作用趋于复杂，且以正相关关系为主。本研究揭示了红树植物种植对热带岛礁珊瑚砂海岸土壤生物群落结构的影响，为珊瑚砂海岸生态系统的修复与管理提供了科学依据。

关键词: 珊瑚砂海岸, 红树植物, 高通量测序, 群落结构, 共生网络

Abstract: Many coral islands in the Nansha Islands of China lack native vegetation. To build stable coral sand beaches, mangrove planting has been implemented as a restoration strategy. However, there is currently a lack of research on the evolution of soil biological community structure during the vegetation restoration process. In this study, high-throughput sequencing was used to track changes in bacterial and eukaryotic communities in coral sand within the first year after mangrove establishment. The results showed that the dominant bacterial phyla were Cyanobacteria, Proteobacteria, Bacteroidetes, Acidobacteria and Chloroflexi, and numerous potentially novel species were detected. The dominant eukaryotic groups were Ciliophora, Nematoda, Stramenopiles, Bacillariophyta, and Rhizaria. Principal coordinate analysis (PCoA) and analysis of similarities (ANOSIM) showed that planting significantly altered both bacterial and eukaryotic community structures, with the shift in eukaryotes being more pronounced. Shannon diversity of bacteria increased markedly over time, whereas that of eukaryotes declined after one year. Co-occurrence network analysis revealed increasingly complex, predominantly positive, biotic interactions as restoration proceeded. These results clarify how mangrove planting restructures soil communities on tropical coral sand beaches and provide a scientific basis for the management and restoration of such ecosystems.

Key words: Coral sand beach, mangrove plants, high-throughput sequencing, community structure, co-occurrence network