基于综合指标法的鄱阳湖生态系统健康评价
Assessment on ecosystem health of Lake Poyang based on a comprehensive index method
查看参考文献65篇
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文摘
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由于湖泊生态问题日益突出,湖泊生态系统安全状态已经成为人们关注的热点问题,了解湖泊水生态系统的状况并根据湖泊生态系统健康状况开展精准治理和生态修复与保护尤为重要。本文基于对鄱阳湖及其流域生态环境的长期监测数据和资料收集,采用综合指标体系法,从物理形态、水文、水环境、水域生态、湿地生态和社会服务6个方面构建了鄱阳湖生态系统健康评估的指标体系,主要涵盖了湖泊口门状况、“五河”入湖径流变异程度、入湖河流水质达标率等26个指标。依据设置的阈值等级得到鄱阳湖生态系统健康评价各层次健康状况等级,通过对各湖泊生态系统各指标得分进行加权计算,得出生态系统健康评估准则层和目标层的得分,最终对鄱阳湖生态系统健康进行了客观的评价。结果表明,构建的湖泊生态系统健康评价体系针对性强、科学全面、具有可操作性,可为鄱阳湖及类似通江湖泊的生态系统健康评价提供案例和方法借鉴。评价结果表明鄱阳湖健康体征状况目标层得分为73.45分,评价结果为亚健康,鄱阳湖水生态系统健康主要受泄流能力、水文节律变化、富营养化程度和物种多样性的影响。最后根据鄱阳湖的水生态系统健康评分等级探讨了鄱阳湖水生态系统中亟需解决的问题,针对性地提出了鄱阳湖保护的对策与建议。 |
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其他语种文摘
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Due to the increasing problems of lake ecology, the security state of lake ecosystem has become a hot issue of people's attention. It is particularly important to understand the status of lake ecosystem and carry out precise management, ecological restoration and protection according to its health status. Based on the long-term monitoring data and other data collected on the ecological environment of Lake Poyang and its watershed, this paper constructed an indicator system for lake health assessment from six aspects: physical form, hydrology, aquatic environment, water area ecology, wetland ecology and social services by using comprehensive indicator system method. It covered 26 indexes, such as lake entrance condition, variation degree of runoff from five inflow rivers to the lake, and water quality compliance rate (as to national creteria) of rivers to the lake. According to the set threshold level, the health status of each level of Lake Poyang ecosystem health was evaluated, and the scores of the criteria layer and the target layer were obtained by weighting scores of each index of lake ecosystem. Finally, the objective evaluation of Lake Poyang ecosystem health was carried out. The results showed that the constructed system had strong pertinence, comprehensive science and operability, and could provide a case and method reference for the ecosystem health evaluation of Lake Poyang and similar Yangtze river-connected lakes. The evaluation results showed that the target level score of Lake Poyang health signs was 73.45, and the evaluation result was sub-healthy. The health of Lake Poyang aquatic ecosystem was mainly affected by discharge capacity, hydrological regime change, eutrophication degree and species diversity. Finally, according to the aquatic ecosystem health rating of Lake Poyang, this paper raised some problems that need to be solved in Lake Poyang aquatic ecosystem protection, and puts forward countermeasures and suggestions for its protection. |
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来源
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湖泊科学
,2023,35(3):1022-1032 【核心库】
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DOI
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10.18307/2023.0321
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关键词
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生态系统健康
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鄱阳湖
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综合指标法
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AHP层次分析法
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现状分析
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指标体系
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地址
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1.
中国科学院南京地理与湖泊研究所, 南京, 210008
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南昌工程学院水利与生态工程学院, 南昌, 330000
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中国科学院大学南京学院, 南京, 211135
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安徽工业大学, 马鞍山, 243000
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中国科学院大学, 北京, 100049
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1003-5427 |
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学科
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环境质量评价与环境监测 |
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基金
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国家重点研发计划项目
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国家自然科学基金
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江西省科技计划项目
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江西省教育厅项目
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文献收藏号
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CSCD:7471265
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