中文摘要：

综合考虑影响河流健康的各方面因素，采用驱动力压力-状态-影响-响应（DPSIR）模型建立河流健康评价指标体系，运用可变模糊集理论建立评价模型对浑河上游河段河流健康状况进行评价。评价结果表明，浑河上游河段健康评价平均值为2．914，属于亚健康等级，与常规的集对分析方法和综合指数评价方法的评价结果一致，验证了可变模糊评价方法的可行性和合理性。鉴于研究区段位于浑河源头上段，承载着巨大的生态服务功能，对该河段进行生态保护和修复是非常重要的。

英文摘要：

With consideration of influencing factors of the river health, the evaluation system of river health was constructed based on a driving-pressure-state-impact-responses （DPSIR） model. An evaluation model was developed using the method of variable fuzzy theory to evaluate the health of the upper Hun River. The results show that the upper Hun River with a mean health evaluation value of 2. 914 is in the sub-healthy state. The set pair analysis method and the comprehensive evaluation index system method were also employed to evaluate the health of the upper Hun River and the results are consistent with those of the variable fuzzy method, which shows that the variable fuzzy method is effective. It is important to protect and repair ecological environment in the upper Hun River because this reach has a remarkable ecological service potential.