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 0.696 8.The worst health state was year 2018 and the EHCI was 0.443 7.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.
aquatic ecological healthassessmentShenyang section of Hunhe river