河流健康状况的表征及其评价

Characterization of rivers health status and its assessment

  • 摘要: 河流健康状况评价是河流管理和河流生态系统监控的基础。阐述了河流健康状况的内涵,尝试从理化参数、生物指标、形态结构、水文特征、河岸带状况5个方面表征河流的健康状况;并从预测模型法和多指标评价法角度对河流无脊椎动物预测和分类系统(RIVPACS)、澳大利亚河流评价计划(AUSRIVAS)、生物完整性指数(IBI)、RCE清单、溪流状态指数(ISC)、河流生态环境调查(RHS)、河流健康计划(RHP)等河流健康状况的评价方法进行评述;在探讨美国、英国、澳大利亚、南非等国家河流健康状况评价开展情况的基础上,指出我国迫切需要构建一套适合国情的河流健康状况评价体系,从河流健康角度评价国内主要河流的生态环境质量,并为广泛开展的河流恢复项目提供基础数据和决策依据。

     

    Abstract: The assessment of rivers health is the foundation of environmental management and ecosystem monitoring. The river's health status can be determined through a holistic appraisal of rivers and their surrounds. Five components of the rivers health include:water quality,aquatic life,physical form,hydrology and streamside zone. Many methods and criteria are available to assess the status of river ecosystem,and this review focuses on RIVPACS,AUSRIVAS,IBI,RCE,ISC,RHS and RHP,which are classified into the predictive model and the multimetrics. Based on the review of the river assessment in various countries,the future development trends are discussed in this paper. There is great need for our country to design an indicator system for rivers health assessment,which can be used to report on environmental condition of rivers,judge the long-term effectiveness of rivers rehabilitation programme and assist the managers in making decisions about rivers management activities.

     

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