珠江口五个滨海湿地生态修复工程成效评估

    Effectiveness Evaluation of Five Coastal Wetland Ecological Restoration Projects in the Pearl River Estuary

    • 摘要: 滨海湿地生态修复是应对全球气候变化和生态系统退化的关键策略,其科学问题涉及动态环境响应、修复策略优化及多维度效益评估。为构建珠江口滨海湿地生态修复工程成效综合评价体系,并对典型工程开展成效评估,本研究以深圳湾、东涌、前海桂湾、芒洲湿地及虎门水道五个滨海湿地修复工程为研究对象,采用层次分析法,从工程履行度、生物恢复情况和生境恢复情况三个方面建立了包含14项评价指标的综合评价模型。研究结果显示,东涌湿地工程(88.63分)和虎门水道工程(87.26分)等级为“优”,深圳湾工程(78.65分)为“良”,前海桂湾工程(67.02分)和芒洲湿地工程(74.99分)为“合格”。构建的评价体系具有较好的可操作性与代表性,适地适树、辩证处理外来和乡土红树植物的关系、尊重乡土红树植物生长特性等经验总结,可为滨海湿地生态修复工程的效果评估与技术优化提供参考。

       

      Abstract: This study aims to establish a comprehensive evaluation system for assessing the effectiveness of ecological restoration projects in coastal wetlands in the Pearl River Estuary, and to apply it to five typical projects. Five coastal wetland restoration projects (Shenzhen Bay, Dongchong Wetland, Qianhai Guiwan, Mangzhou Wetland, and Humen Waterway) were selected as study objects. Using the Analytic Hierarchy Process (AHP), a comprehensive evaluation model was constructed from three dimensions: project implementation, biological recovery, and habitat restoration, involving 14 indicators. The results show that the comprehensive scores were 88.63 for Dongchong Wetland and 87.26 for Humen Waterway (rated as “excellent”), 78.65 for Shenzhen Bay (“good”), and 67.02 and 74.99 for Qianhai Guiwan and Mangzhou Wetland, respectively (“qualified”). Biological recovery had the greatest impact on the overall evaluation (weight 0.369 6), with plant adaptability and native mangrove index being the key factors. The established evaluation system is operational and representative, providing technical and decision-making support for the ecological restoration of coastal wetlands in China.

       

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