城市河流生态系统健康评价实例研究

Case Study on Assessment of Urban River Ecosystem Health

通过对城市河流生态系统健康的内涵进行探讨，从胁迫-状态-响应3方面构建了指标体系，并利用综合指数法对许昌市5条河流生态系统健康状况进行了评价，结果表明：2001—2005年5条河流健康状况虽逐年均有不同程度的好转，但仍处于严重不健康-亚健康之间，河流污染严重、景观功能低下是主要的制约因素。

Based on discussion of the connotation system, including the 3 aspects of force - condition of urban rivers ecosystem health, the indicator respond are established, and the overall target method are applied to assessing the ecosystem health states of 5 rivers in Xuchang city. The results indicated although the health states of 5 rivers have varying degrees for the better from 2001 to 2005 year by year, still was between the serious ill health and sub-healthy, the serious pollution and low landscape function were the main restriction factor.