Acta Scientiarum Naturalium Universitatis Pekinensis

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Regional Ecological Risk Assessment of Wetland in the Huanghe River Delta

XU Xuegong1, LIN Huiping1, FU Zaiyi1, BU Rencang2   

  1. 1Department of Geography, Peking University, Beijing, 100871; 2Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110015
  • Received:1999-12-30 Online:2001-01-20 Published:2001-01-20


许学工1, 林辉平1, 付在毅1, 布仁仓2   

  1. 1北京大学城市与环境学系,北京,100871; 2中国科学院沈阳应用生态研究所,沈阳,110015

Abstract: Through the case study of the wetland in the Huanghe River (Yellow River) delta, the concept of regional ecological risk assessment is inquired into, and a set of assessment method was developed. The main process of regional ecological risk assessment includes 5 stages: regional analysis, risk receptor selection, risk sources analysis, exposure and hazard analysis, and integrated risk assessment. Arming at flood, drought, storm tide, petroleum pollution accident and flow breaking in the lower Huanghe River, the probability and distribution of each kind of risk sources are evaluated. The authors bring forward indexes and formulas to measure hazarded degree and risk value of ecosystem. By using remote sensing data, historic record, survey data and by means of geographical information system (GIS), regional ecological risk assessment is finished. On the basis of assessment result, the environmental risk management countermeasure of the Huanghe River delta is advanced.

Key words: regional ecological risk assessment, the Huanghe River delta, wetland

摘要: 以黄河三角洲为例进行了区域生态风险评价理论和方法的探讨。针对黄河三角洲主要生态风险源洪涝、干旱、风暴潮灾害、油田污染事故以及黄河断流的概率进行了分级评价;并提出度量生态损失与生态风险的指标和公式,分析了风险源的危害作用;运用遥感资料、历史记录、调查数据和地理信息系统(GIS)技术,完成了区域生态风险综合评价;在此基础上提出黄河三角洲的区域生态风险管理对策。

关键词: 区域生态风险评价, 黄河三角洲, 湿地

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