河流健康指标是评价河流健康状况和河流生态系统完整性的标尺,是准确、全面评价河流生态系统健康状况的基础。国内现有河流健康指标大多针对河流生态系统的结构性,而对河流的功能性关注不多。本文系统综述了国外河流功能性指标的研究进展与应用现状,并对两种的典型功能性指标的应用方法和评价标准进行介绍。以日本大山川减水河段环境流量修复为案例,使用典型功能性指标和结构性指标对环境流量修复效果进行评价,结果表明河流功能性指标能更好地反映河流生态系统对流量变动的响应。本文研究成果可为完善我国河流健康评估体系提供借鉴。
River health indicators are the measures to reflect the river ecosystem health condition and riverecosystem integrity,which are very important for exact and comprehensive assessment of river health. How-ever, previous studies on river health indicators in our country were mostly focused on the structural as-pects of river ecosystem, and functional indicators were rarely reported. This study reviewed the most usedfunctional indicators briefly and introduced the application and criteria of two typical structural and function-al indicators. Meanwhile,a case study of Ohyama River environmental flow restoration was introduced to il-lustrate the application of metabolism in Japan. The results show that the functional indicators can well re-sponse to the new environmental flow. The study may be helpful for enriching the indicator system for riverhealth assessment in our country.