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中国农学通报 ›› 2018, Vol. 34 ›› Issue (36): 81-87.doi: 10.11924/j.issn.1000-6850.casb18010102

所属专题: 资源与环境 农业生态

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

东洞庭湖湿地生态系统健康评价

潘东华1, 贾慧聪2, 贺原惠子2, 陈方2   

  1. 1.民政部国家减灾中心;2.中国科学院遥感与数字地球研究所 中科院数字地球重点实验室
  • 收稿日期:2018-01-18 修回日期:2018-04-03 接受日期:2018-04-24 出版日期:2018-12-24 发布日期:2018-12-24
  • 通讯作者: 贾慧聪
  • 基金资助:
    国家自然科学基金项目“极端气候事件对我国旱灾适应性的影响机制研究”(41471428),“我国华北地区土壤水效用对玉米旱灾风险的影 响机制研究”(41671505);国家重点研发计划“中高纬度湿地系统对气候变化的响应研究”(2016YFA0602302);中国气象局兰州干旱气象研究所资助 项目“基于信息图谱的因旱需救助人口动态估算研究”(IAM201609)。

Health Assessment of Wetland Ecosystem in East Dongting Lake

  • Received:2018-01-18 Revised:2018-04-03 Accepted:2018-04-24 Online:2018-12-24 Published:2018-12-24

摘要: 湿地生态系统健康评价是湿地保护的基础,对提高湿地生态环境管理水平具有重要的指导作用。以国家级自然保护区湖南省东洞庭湖湿地为研究区,利用Mamdani FIS (模糊推理系统)模型,构建了包含水体PH值,水体悬浮物浓度、土壤pH值、土壤含水量、植被类型数量、入侵物种数量、湿地面积变化率、人口密度、产业结构等9个影响因子的指标体系,进行了湿地生态系统健康评价。结果证明,东洞庭湖湿地生态系统健康评价得分为1.37分,健康状态介于亚健康和不健康之间。利用Mamdani FIS 模型的非线性分析能力和基于专家意见的推理规则,评估湿地健康指数时不需要先验知识支撑,简化了模型使用时对数据的要求。通过对评价结果进行分析提出了保护利用的建议,以期为长江中下游湖泊湿地生态环境保护政策的合理制定提供科学依据。

关键词: 冰雹, 冰雹, 强对流天气, 不稳定层结, 雷达

Abstract: The aims are to determine the ecological load and environmental capacity of wetlands, and provide references for making environmental regional planning and nvironmental laws. Taking East Dongting Lake as the studying area, the Mamdani FIS (Fuzzy Reasoning System) model was used to construct the index system including nine factors, water pH, the suspended solids concentration in water, soil pH, soil water content, the number of vegetation types, the number of invasive species, the rate of wetland area change, the population density, and the industrial structure. The wetland ecosystem health assessment was carried out. The results showed that the health assessment score of East Dongting Lake wetland ecosystem was 1.37, the status of health was between sub-health and unhealthy. Based on the nonlinear analysis ability of Mamdani FIS model and the reasoning rules using expert opinions, the assessment results of wetland ecosystem health are more objective, and have important reference values for the reasonable formulation of the ecological environment protection policy for lake wetlands.