沈阳城市河流生态系统健康评价研究

Study of the Assessment of Urban River Ecosystem Health in Shenyang

考虑反映城市河流生态系统的水量、水质、河岸带、水生生物与物理结构等5个方面的因素,构建了城市河流生态系统健康评价指标体系。城市河流生态系统健康评价模型采用模糊综合评判模型,各指标权重利用层次分析法确定。根据评价指标的选择原则,选取8个评价指标,提出了5级评价标准,对浑河沈阳段2009年的河流生态系统健康状况进行了评价。结果表明:浑河沈阳段处于不健康状态。通过对比模型计算,验证了该模型的可靠性。

This paper built the health assessment index system of urban river ecosystem in consider of water quantity and quality,riparian,aquatic biological and river physical structure which reflect the urban river ecosystem.The fuzzy comprehensive evaluation model is used in the model of the urban river ecosystem health assessment and AHP is used to determine the index weights.Based on the choice principle of assessment index,this paper chose eight assessment index and advance five grade assessment standard,and the ecosystem health of the Hun River in Shenyang in 2009 is assessed.The result shows that the Hun River in Shenyang is at the second standard（unhealthy）.The result shows that this model is accurate by comparison with other model caculation.