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<p>Plant-based aquatic environmental assessment programs have been used to evaluate ecosystems globally. However, few studies have reported relationships between the physical and chemical factors of water environments in artificial wetlands alongside mangrove community plant diversity and growth. Here, 11 representative plant community and water environments were surveyed in the Nansha coastal wetland in Guangzhou using field surveys of background and control sections. Membership function analysis was used to comprehensively evaluate the environmental quality among different communities, while multiple linear stepwise regression analyses were used to identify relationship models for each factor. Eight species of mangrove plants belonging to seven families and eight genera were identified in the wetlands; in addition, 52 species of scrub plants belonging to 30 families and 43 genera were identified, with the largest family being Bromeliaceae. Redundancy analyses indicated that the NH<sub>3</sub>-N, NO<sub>3</sub>-N, TP, BOD<sub>5,</sub> and Chl a contents were the major influences on plant diversity. Lastly, the ecological qualities of <i>Kandelia obovata</i>, <i>Aegiceras corniculatum</i>, <i>Bruguiera gymnorhiza</i>, and <i>Pongamia pinnata</i> communities were higher based on composite wetland indicators. Evaluating mangrove plant community interactions with aquatic environmental factors is critical for understanding mechanisms of species coexistence, biodiversity maintenance, and forest management. The plant community analysis described here provides a baseline framework for improving plant diversity and environmental factor monitoring in mangrove communities. Further, the results also provide a basis for considering the importance of biodiversity conservation and sustainable water use in the coastal wetlands of Nansha.</p>

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Interactions between Plant Communities and Water Environments in the Artificial Mangroves

  • 期刊论文

  • 发表日期：

    2025年2月3日

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  • Hongping Niu,
  • Long Wei,
  • Jianxiang Feng,
  • Zuoyun Yin

摘要

Plant-based aquatic environmental assessment programs have been used to evaluate ecosystems globally. However, few studies have reported relationships between the physical and chemical factors of water environments in artificial wetlands alongside mangrove community plant diversity and growth. Here, 11 representative plant community and water environments were surveyed in the Nansha coastal wetland in Guangzhou using field surveys of background and control sections. Membership function analysis was used to comprehensively evaluate the environmental quality among different communities, while multiple linear stepwise regression analyses were used to identify relationship models for each factor. Eight species of mangrove plants belonging to seven families and eight genera were identified in the wetlands; in addition, 52 species of scrub plants belonging to 30 families and 43 genera were identified, with the largest family being Bromeliaceae. Redundancy analyses indicated that the NH3-N, NO3-N, TP, BOD5, and Chl a contents were the major influences on plant diversity. Lastly, the ecological qualities of Kandelia obovata, Aegiceras corniculatum, Bruguiera gymnorhiza, and Pongamia pinnata communities were higher based on composite wetland indicators. Evaluating mangrove plant community interactions with aquatic environmental factors is critical for understanding mechanisms of species coexistence, biodiversity maintenance, and forest management. The plant community analysis described here provides a baseline framework for improving plant diversity and environmental factor monitoring in mangrove communities. Further, the results also provide a basis for considering the importance of biodiversity conservation and sustainable water use in the coastal wetlands of Nansha.