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鄱阳湖典型湿地生态环境脆弱性评价及压力分析
  • 期刊名称:2008,17(1):133~137
  • 时间:0
  • 分类:X36[环境科学与工程—环境工程] S865.34[农业科学—野生动物驯养;农业科学—畜牧兽医]
  • 作者机构:[1]南京大学地理与海洋科学学院,江苏南京210093, [2]江西师范大学地理与环境学院,江西南昌330022
  • 相关基金:国家自然科学基金项目“鄱阳湖区土地利用与土地覆盖变化模拟研究”(40561011);教育部鄱阳湖重点实验室开放基金项目(PK2004016);教育部鄱阳湖重点实验室小额配套资助项目(PX2005013) 致谢 中国科学院地理科学与资源研究所姜鲁光博士提供遥感图像,在此深表谢意.
  • 相关项目:鄱阳湖区土地利用与土地覆盖变化模拟研究
中文摘要:

采用理论研究与实地调查、定性和定量相结合的研究方法,建立了完整的鄱阳湖典型湿地生态环境脆弱性评价指标体系,并运用模糊数学的方法对鄱阳湖湿地生态环境脆弱性进行评价。结果表明,鄱阳湖典型湿地生态环境脆弱性为0.768,属于轻度脆弱状态;在亚类指标中,生态特征脆弱状态为0.732.处于轻度脆弱状态,整体功能脆弱状态为0.868,处于微脆弱状态,社会环境脆弱状态为0.668,处于轻度脆弱状态。通过压力分析,发现影响鄱阳湖典型湿地生态环境脆弱性的制约因素主要是外部社会环境因素,主要包括围垦、不当的消灭血吸虫病措施、经济贫困与落后的生产生活方式以及亟待加强的湿地管理体制。

英文摘要:

The paper dealt with the ecological vulnerability of typical wetland. In terms of purpose,integrity, dominance, dynamic and relevant principles, a completely assessment index system of ecological vulnerability on typical wetland of Poyang Lake was established. These indices could be divided into three kinds of sub-category: wetland ecological feature, wetland overall function and wetland social environment. By consulting expert advices, evaluation criteria were determined, the target weight was identified,and weight vector was established;then a multi-level integrated fuzzy assessing model was established by constructing affiliation matrix of qualitative evaluation indicators. Finally, the ecological environment vulnerability of typical wetland in Poyang Lake was assessed. The results indicates that vulnerability value of typical wetland ecological environment is 0. 768,in a light fragile state. In the sub-category, the vulnerability value of ecological environment of wetland is 0. 732,in a light fragile state. The vulnerability value of wetland overall function is 0. 868, in a little fragile state. And the vulnerability value of wetland social environment is 0. 668, also in a light fragile state. The pressure mainly came from the socioeconomic environment,including inning and withdrawing farmland to lake, undesirable prevention measures of schistosomiasis, poverty, management system.

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