沉水植物配置模式及生长对水质的响应研究—以武汉墨水湖为例
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武汉致远建设集团有限公司,湖北 武汉

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X524

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The response of submerged macrophytes configuration pattern and growth on water quality - an example of Wuhan Moshui Lake
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    摘要:

    恢复和重建沉水植物群落是水体生态修复的重要手段,墨水湖作为武汉市汉阳区主要湖泊之一,研究墨水湖沉水植物和水质的关系可对武汉市内受污染湖泊水体的修复提供重要参考意义。本研究以武汉市墨水湖生态治理工程为例,以我国水体修复中常用的3种沉水植物苦草(Vallisneria natans)、黑藻(Hydrilla verticillata)和穗状狐尾藻(Myriophyllum spicatum)为研究对象,采用涉及一种沉水植物和两种沉水植物的配置模式,研究武汉墨水湖中不同配置模式下沉水植物存活率以及沉水植物对水质指标总氮、氨氮、总磷、化学需氧量和叶绿素的影响。结果表明,在涉及两种沉水植物的配置模式下沉水植物存活率均较高,沉水植物对各水质指标的去除率也较好。Pearson相关性分析表明,不同沉水植物配置模式下沉水植物存活率与水质参数相关性不显著。在利用沉水植物修复水生态环境的过程中,需合理配置不同种沉水植物,加强科学管理和后期维护,使湖泊向草型湖泊发展。

    Abstract:

    The restoration and reconstruction of submerged macrophytes communities are commonly employed for ecological rehabilitation of water body. Research into the relationship between submerged macrophytes and water quality in Moshui Lake, one of the largest lakes in Hanyang District, Wuhan, can serve as an essential reference for the restoration of contaminated lakes and water bodies in the city. In this study, the Moshui Lake ecological treatment project in Wuhan City was taken as an example, and three submerged macrophytes, Vallisneria natans, Hydrilla verticillata and Myriophyllum spicatum, which are frequently utilized in water restoration in China, were used as the objects of the study. The survival rate of submerged macrophytes and their effects on the water quality indicators of total nitrogen, ammonia nitrogen, total phosphorus, chemical oxygen demand, and chlorophyll in Wuhan Moshui Lake under configuration patterns involving one type of submerged macrophytes and two types of submerged macrophytes are investigated. The results revealed that the survival rate of submerged macrophytes was higher in configuration pattern involving two submerged plant species. In addition, the submerged macrophytes exhibited a higher removal rate of water quality indicators. Pearson correlation analysis showed that the correlation between the survival rate of submerged macrophytes and water quality parameters under different submerged macrophytes configuration patterns was not significant. When utilizing submerged macrophytes to restore water ecosystems, it is important to rationally allocate different species and utilize scientific management techniques for post-maintenance to achieve grass-type lake development.

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  • 收稿日期:2023-12-29
  • 最后修改日期:2024-08-28
  • 录用日期:2024-08-30
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