海河干流健康评估体系研究

Study of health assessment system for main stream of Haihe River

针对海河穿过天津中心城区、原有入境水量大幅减少的特点,以水利部河流健康评估技术导则为基础,调整了5个准则层的部分评估指标及赋分权重,构建了一套海河干流健康评估体系,并依此评估出海河干流2013年的健康指数得分为47.9分,为"亚健康状态",比直接按水利部标准评出的结论"不健康状态"提高了一个等级。

The original inbound water quantity of the Haihe River, which flows across the central urban area of Tianjin City, has decreased remarkably. In view of this, we adjusted some of the assessment indicators and scoring weights of five criterion layers based on the Rivers’ Health Assessment Guide published by the Ministry of Water Resources of China, and built a health assessment system for the main stream of the Haihe River. According to the assessment, we obtained the following results： the score of the health indicator for the main stream of the Haihe River in 2013 was 47. 9, indicating that the river had a sub-healthy status, which was one grade superior to an unhealthy status as assessed by the standards established by the Ministry of Water Resources of China.