浑河沈阳段水生态健康评价

为了科学合理评估浑河沈阳段生态健康状况,在相关统计数据和研究基础上,基于水生态健康指标理论,从物理化学指标、生态指标和社会经济指标3个方面,选择了15项构建了浑河沈阳段生态健康评估指标体系。评估结果表明:浑河沈阳段水生态系统健康综合指数2020年>2019年>2017年>2016年>2018年。健康状态最好的一年为2020年,生态系统健康综合指数为0.6968;健康状态最差的一年为2018年,生态系统健康综合指数为0.4437。在2016—2020年,浑河沈阳段水生态系统处于不稳定的状态,2019年和2020年生态系统处于健康状态,2016年、2017年和2018年生态系统处于亚健康状态。

In order to assess the aquatic ecological health state of Shenyang section of Hunhe river scientifically,the aquatic ecological health index assessment system of the Shenyang section was constructed from 3 aspects including the physical chemistry index,ecological index and social and economic index,selecting 15 items,according to relevant statistical data,research findings,and aquatic ecological health index theory.The result showed that the order of the EHCI(ecological health comprehensive index)is given below,2020>2019>2017>2016>2018.The best health state was year 2020 and the EHCI was 0.6968.The worst health state was year 2018 and the EHCI was 0.4437.In the period 2016-2020,the aquatic ecological health of Hunhe river in Shenyang was in an unstable state,the aquatic ecological health was general healthy in 2019 and 2020,and was sub-healthy from 2016 to 2018.