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热带海洋学报

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福鼎八尺门红树林修复早期沉积物细菌群落结构及其生态功能

吴琪1, 2, 3，王飞鹏2, 3，孔维茂2, 3, 4,吕小龙2, 3, 4,何欣瑞2, 3,马祖友5,王庆业5, 樊立静5,穆景利2, 3, 6   

  1. 1. 福建农林大学植物保护学院、海峡联合研究院，福建 福州 350002;

    2. 闽江学院地理与海洋学院，福建省海洋生物多样性保护与永续利用重点实验室，福建 福州 350108;

    3. 福州海洋研究院，福建 福州 350108;

    4. 福建农林大学资源与环境学院，福建 福州 350002;

    5. 自然资源部宁德海洋中心，福建 宁德 352100;

    6. 自然资源部东南生态脆弱区监测修复工程技术创新中心，福建 福州 350108



  • 收稿日期:2025-09-30 修回日期:2025-12-29 接受日期:2026-01-07
  • 通讯作者: 穆景利
  • 基金资助:

    海洋生态保护与修复项目(FJSHYZB-2023-259,FJSHYZB-2024-143); 福建省自然资源科技创新项目(KY-030000-04-2025-043)

Sediment bacterial communities and ecological functions during early mangrove restoration at Baichimen, Fuding

WU Qi1, 2, 3, WANG Feipeng2, 3, KONG Weimao2, 3, 4, LYU Xiaolong2, 3, 4, HE Xinrui2, 3, MA Zuyou5, WANG Qingye5, FAN Lijing5, MU Jingli2, 3, 6   

  1. 1. College of Plant Protection, Haixia Institute of Science and Technlogy, Fujian Agriculture and Forestry University, Fuzhou 350002, China;

    2. Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, College of Geography and Oceanography, Minjiang University, Fuzhou 350108, China;

    3. Fuzhou Institute of Oceanography, Fuzhou 350108, China;

    4. College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China;

    5. Ningde Marine Center, Ministry of Natural Resources, Ningde 352100, China;

    6.Technology Innovation Center for Monitoring and Restoration Engineering of Ecological Fragile Zone in Southeast China, Ministry of Natural Resources, Fuzhou 350108, China



  • Received:2025-09-30 Revised:2025-12-29 Accepted:2026-01-07
  • Supported by:

    Marine Ecological Conservation and Restoration Project (FJSHYZB-2023-259, FJSHYZB-2024-143); Fujian Provincial Natural Resources Science and Technology Innovation Program (KY-030000-04-2025-043)

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摘要： 人工修复是红树林生态系统保护与恢复的关键有效措施。福鼎八尺门内湾修复区红树植物(秋茄，Kandelia obovata)定植一年后，通过采集不同深度的沉积物样品，基于高通量测序技术，系统分析了修复早期沉积物细菌的群落结构特征、构建机制及其生态功能。结果表明：(1) γ-变形菌纲(Gammaproteobacteria)、α-变形菌纲(Alphaproteobacteria)、厌氧绳菌纲(Anaerolineae)及酸微菌纲(Acidimicrobiia)为研究区域早期沉积物中多样性及丰度最高的类群；细菌多样性在不同采样深度间无显著差异，但其群落组成随采样深度呈现显著差异(P = 0.037)；(2) 基于中性模型分析，随机过程均是影响不同深度沉积物细菌群落构建的关键机制；(3) 共生网络分析发现，沉积物细菌群落间存在强烈协同合作关系，且底层细菌群落有着最高的网络稳定性；(4) 细菌群落主要优势功能为：化能异养、好氧化能异养和发酵，且其丰度在不同采样深度间存在差异。本研究结果有助于深化对红树林修复早期细菌群落结构及其生态功能的认识，可为红树林生态系统的恢复与管理提供科学依据。

关键词: 细菌群落结构, 构建机制, 生态功能, 红树林修复早期, illumina高通量测序

Abstract: Artificial restoration is an essential measure for mangrove ecosystem conservation and recovery. One year after Kandelia obovata planting in the Bachimen Inner Bay restoration area (Fuding, China), sediment samples were collected at different depths. High-throughput sequencing was used to analyze bacterial community structure, assembly processes, and ecological functions during the early restoration stage. The results showed: (1) Gammaproteobacteria, Alphaproteobacteria, Anaerolineae, and Acidimicrobiia were the most diverse and abundant taxa; bacterial diversity showed no significant differences among depths, but community composition differed significantly (P = 0.037); (2) neutral model analysis indicated that stochastic processes dominated community assembly across depths; (3) co-occurrence network analysis revealed strong cooperative interactions, with the deepest layer showing the highest network stability; and (4) chemoheterotrophy, aerobic chemoheterotrophy, and fermentation were the predominant functions, and their abundances varied with depth. These findings improve our understanding of the early stage bacterial communities in restored mangrove sediments and provide a scientific basis for restoration and management practices.

Key words: Bacterial community structure, assembly mechanisms, ecological functions, early mangrove restoration, Illumina high-throughput sequencing