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首页> 外文期刊>Estuarine Coastal and Shelf Science >The application of cutting plus waterlogging to control Spartina alterniflora on saltmarshes in the Yangtze Estuary, China
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The application of cutting plus waterlogging to control Spartina alterniflora on saltmarshes in the Yangtze Estuary, China

机译：切削加涝在长江口盐沼防治互花米草中的应用

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摘要

Control and eradication of the exotic and invasive plant Spartina alterniflora within the Chongming Dongtan nature reserve, Shanghai, China, is vital for the management and conservation of the salt-marshes. A demonstration project was established using waterlogging and cutting to control this invasive species. Results from 2007 to 2008 showed that, although the managed waterlogging significantly reduced biomass and seed production of S. alterniflora at an early stage, the species subsequently showed rapid adaptation to the long-term waterlogging stress. Thus, managed waterlogging alone was insufficient for the effective eradication of S. alterniflora. However, managed waterlogging for around 3 months, combined with cutting the above-ground part of S. alterniflora at a key stage (flowering period in July), controlled and eradicated the plant successfully. Both the above-ground and below-ground parts of S. alterniflora were killed and the plants began to decompose after 3 months. Furthermore, there was no re-growth of the emergent part of S. atterniflora in the following years. However, once the impounded water was released restoring the natural hydrodynamic regime of the saltmarshes, the seeds and seedlings of S. alterniflora reinvaded the controlled site from the neighboring areas and the S. alterniflora community was re-established. Thus, after eradication of S. alterniflora, control measures should be maintained to prevent the re-establishment of S. alterniflora. The results of this demonstration project indicate a potentially useful and effective approach for the control and management of large-scale invasion by S. alterniflora on saltmarshes in the Yangtze Estuary, China.
机译：在中国崇明东滩自然保护区内，对外来入侵植物互花米草（Spartina alterniflora）进行控制和根除，对盐沼的管理和保护至关重要。建立了一个利用淹水和砍伐控制该入侵物种的示范项目。 2007年至2008年的结果表明，尽管管理的涝渍在早期显着降低了互花米草的生物量和种子产量，但该物种随后表现出对长期涝渍胁迫的快速适应。因此，仅进行有效的涝渍不足以有效根除互花米草。但是，在大约三个月的时间内进行了淹水处理，并在关键阶段（七月开花期）切断了互花米草的地上部分，成功地控制并根除了该植物。互生链球菌的地面和地下部分均被杀死，三个月后植物开始分解。此外，在接下来的几年中，无毒链球菌的出现部分没有重新生长。但是，一旦释放了蓄积的水，恢复了盐沼的自然流体力学状态，互花米草的种子和幼苗就从邻近地区重新入侵了受控制的地点，并且重新建立了互花米草群落。因此，在根除互花米草后，应保持控制措施以防止互花米草的重建。该示范项目的结果表明，在中国长江口盐沼中，互花米草对大规模入侵的控制和管理具有潜在的实用价值。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2011年第1期|p.103-110|共8页
  • 作者

    Lin Yuan; Liquan Zhang; Derong Xiao; Huamei Huang;

  • 作者单位

    State Key Laboratory of Estuarine and Coastal Research. East China Normal University, 3663 Zhongshan Road North, Shanghai 200062, China;

    State Key Laboratory of Estuarine and Coastal Research. East China Normal University, 3663 Zhongshan Road North, Shanghai 200062, China,Shanghai Key Laboratory of Urbanization and Ecological Restoration, East China Normal University, 3663 Zhongshan Road North, Shanghai 200062, China;

    State Key Laboratory of Estuarine and Coastal Research. East China Normal University, 3663 Zhongshan Road North, Shanghai 200062, China;

    State Key Laboratory of Estuarine and Coastal Research. East China Normal University, 3663 Zhongshan Road North, Shanghai 200062, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    spartina alterniflora; saltmarshes; invasion; growth; reproduction; yangtze estuary;

    机译：互花米草;盐沼;入侵;生长;繁殖;长江口;

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